Bees Are Not (Purposeful) Pollinators

Today is World Bee Day, for celebrating our favorite pollinators. I enthusiastically support increasing awareness of bees other than honey bees, but a vague mythology exists. Here is some food for thought, remembering that one out of every three bites of food we eat we owe to the efforts of pollinators.

A tiny sweat bee, genus Lasioglossum, visits a ornamental Amaryllis flower in our Leavenworth, Kansas yard. Bees prefer native plants, though.

There is something of a persistent fairy tale, if only implied, that portrays bees as little agents of plant reproduction, flying flower to flower to effect floral fertilization, like it is their job, or out of the goodness of their tiny little hearts. Nothing could be farther from the truth.

A female mining bee, genus Andrena, pauses to rest and groom between forays for collecting pollen. Colorado Springs, Colorado.

Bees are best described as “pollen harvesters,” or even, perish the thought, “pollen predators.” Female bees actively collect pollen as food provisions for their larval offspring. This definition applies to honey bees, bumble bees, sweat bees, mining bees, mason bees, leafcutter bees, digger bees, all the bees except the kleptoparastic cuckoo bees. Cuckoo bees don’t collect pollen, but lay their eggs in the nests of other bees that do. Cuckoo bee larvae feed on the stolen pollen reserves of their hosts.

Many cuckoo bees, like this one in the genus Nomada, look more like wasps, lacking the "fuzzy" appearance we associate with bees. Colorado Springs, Colorado.

Pollination occurs as a by-product of the bee’s determined, thorough gathering of pollen; and the body form of bees that allows pollen to be shed as frequently as it is foraged. Body plan and behavior therefore make bees effective pollinators.

A male Squash Bee, Peponapis pruinosa, waits in a flower for a potential mate to visit. This bee species visits flowers in the gourd family exclusively. Colorado Springs, Colorado.

Another facet of bee behavior is that some species are oligolectic, meaning they visit only one particular genus, or even species, of flower. This greatly increases the likelihood that pollination will happen. Many bees are generalists, and will visit a variety of flowers, lowering the possibility of compatibility of bee-shed pollen with the flower receiving the bee’s next visit. This is not usually appreciable enough to be negatively significant, but it is still worth noting.

A female sweat bee, genus Halictus, has difficulty reaching pollen and nectar in an ornamental rose flower. Colorado Springs, Colorado.

Flowers and bees have coevolved to take advantage of each other, and it is an ongoing, dynamic relationship. Human interference threatens to upend that in a variety of ways. Some plant cultivars have sterile flowers, and bees therefore waste time and energy trying to “get blood out of a turnip.” Other cultivars, bred for large, complex “double bloom” flowers, result in blossoms too complicated for bees to navigate to find pollen and nectar. Lastly, cultivars may have pollen with a much lower nutritional value than that of the native plant they were derived from.

A worker female honey bee, Apis mellifera, among the first bees active in spring. El Paso County, Colorado.

Honey bees, social bees in the genus Apis that are not native to the Americas or Australia, are the unfortunate poster children for Bee Day, thanks to public familiarity through heavy marketing campaigns by the apiculture (bee keeping) industry. While absolutely vital pollinators for industrial scale agriculture, honey bees in unmanaged, feral colonies have a serious negative impact in natural ecosystems. Honey bees hog floral resources that native bee species, most of which are solitary, need to prosper.

A female Eastern Carpenter Bee, Xylocopa virginica, robs nectar from a hosta flower, throuch a slit she cut at the base of the blossom. Leavenworth, Kansas.

Back to flowers and bees for a moment. There are long- and short-tongued bees. This difference in anatomy means that many bees are restricted to visiting flowers with shallow corollas, such that they can reach the nectar reservoirs. Some larger short-tongued bees, namely large carpenter bees in the genus Xylocopa, are able to cut a slit at the bottom of deep-throated flowers, and “rob” the nectar without dusting themselves with pollen in the process of feeding. Smaller bees follow the carpenter bee, and take advantage of the holes it cuts.

The bumble bee on the left performs proper pollination of a hosta flower, while the longhorned digger bee on the right bypasses the flower's reproductive parts and uses a slit cut by a carpenter bee to rob nectar.

If it seems like the myth of the hard-working bee might be falling apart a little, then what about other pollinators like butterflies, moths, wasps, flies, beetles, hummingbirds, and bats? Well, those organisms are not even coming to flowers for pollen, with a few exceptions. They are “flower visitors” that want nectar as sugary fuel for their high metabolism. Setae (hairs), feathers, and fur will accumulate pollen, and shed it, so again, pollination can be achieved, but it is not some kind of selfless mission of the critter.

A female leafcutter bee, genus Megachile, shears a piece from a redbud leaf to use in fashioning a cell in her nest. She can do quite a bit of cosmetic damage, but the shrub will be fine. Leavenworth, Kansas.

All of this is not to say that bees are not loveable, and in need of conservation. Here are some neat facts, tips for helping bees, and resources to investigate:

• There are over 4,000 species of bees found north of Mexico. Hotspots include the Mojave Desert, and Colorado.
• Most native, solitary bees nest in burrows underground, so leave some bare patches of soil in your yard for them.
• ”Bee hotels,” aka bee condos, bee blocks, are for solitary bees that nest in natural cavities in wood. Avoid commercial products, and make your own; or, better yet, leave stumps and solid wood logs in the yard that have obvious holes from beetle borings. Snip old, hollow twigs and woody stems so bees can use those upright tunnels, too.
• Consult online gurus like Dr. Kit Prendergast (“The Bee Babette”) of Australia, and Krystle Hickman (“beesip”) of southern California, for friendly presentations on bees, and tips on how to help them.
• Watch My Garden of a Thousand Bees, a fascinating documentary set in the United Kingdom, but applicable elsewhere in the northern hemisphere.
• Landscape with native plants whenever and wherever you can. Be tolerant of the damage done by female leafcutter bees making their nests by cutting chunks of foliage.

A female sweat bee, genus Lasioglossum, lives up to her name and sips perspiration from my hand. Leavenworth, Kansas.

Enjoy the rest of National Bee Day, and get ready of National Pollinator Week, coming June 22-28, 2026.

Fly Day Friday: The Good Mosquito

Believe it or not, there is a mosquito species I look forward to seeing every year. You may think I'm crazy, but hear me out. There are at least three reasons to love elephant mosquitoes in the genus Toxorhynchites. They are pretty, beneficial in the larval stage, and do not bite as adults.

A male Elephant Mosquito

Elephant mosquitoes are also known as giant treehole mosquitoes, so you can sense a theme here. They are indeed large for mosquitoes, averaging about seven millimeters in body length. That does not include the mouthparts and antennae. Their long legs make them appear larger still. Why the name "elephant mosquito?" It may be a reference to the long, upcurved palps of the males, which suggest elephant tusks.

Notice the tusk-like palps (part of the mouthparts), and bushy antennae on this male.

There is no denying the beauty of our single North American species, Toxorhynchites rutilus. They are iridescent blue and purple, with silver and gold highlights, and white tips on the hind legs. It seems that no one photo captures all the colors all at once. Despite their brilliance, they are surprisingly cryptic in the dimming light of dusk, when they are most active (though they are considered day-fliers).

As their other name indicates, elephant mosquitoes breed mostly in water-filled treeholes. The larval stage, at least in later instars, is predatory on other aquatic insects, including....wait for it....the larvae of other mosquitoes. Yes, you heard that correctly, they are a natural biological control of the mosquito species that pose a threat to human health. The larvae are reddish in color, with a short anal siphon (bearing the spiracle that permits intake of air at the water surface), and a broad, black head with strong mandibles. There are four larval instars, an instar being the interval between molts.

The female Elephant Mosquito has straight palps, and simple bristle-like antennae.

The adult elephant mosquito has a distinctive proboscis, bent strongly downward near the middle of its length. Instead of using their beaks to draw blood from other animals, elephant mosquitoes of both sexes feed only on flower nectar. As flower visitors, they are also pollinators of wildflowers. Some other species in the genus may also feed on fruit juices, and honeydew (the sugary liquid waste of aphids, scale insects, and various planthoppers).

The female again, showing that long,sharply-curved proboscis.

Here in northeast Kansas, on the Missouri border, I have found Toxorhynchites rutilus only in late autumn, and only on the flowers of White Snakeroot. I have only seen them in our yard, in fact, but I am not usually exploring elsewhere as sunset approaches. The species ranges from the eastern half of Texas and Oklahoma diagonally northeast to southern Pennsylvania, Connecticut, and Delaware.

Can you tell which sex this one is?

There are roughly eighty species of Toxorhynchites, occuring mostly in tropical regions around the globe. Due to their unique appetite for other mosquitoes, they have been employed as biological controls for container-breeding mosquitoes in Japan, southeast Asia, the Caribbean, and in some cities in the United States.

Are you a new fan of elephant mosquitoes yet? If not, please see the resources and links below for additional information on the biology of these remarkable flies. Mosquitoes, like most insects, and people, defy neat categorizing as "bad" or "good." Entomology is a great place to learn lessons like that.

So handsome!

Sources: Alomar, Abdullah A. and Barry W. Alto. 2022. "Elephant Mosquito Toxorhynchites rutilus Coquillett, 1896 (Insecta: Diptera: Culicidae)," Ask IFAS EENY-787/IN1380. University of Florida.
Coin, Patrick, et al. 2004. "Species Toxorhynchites rutilus - Elephant Mosquito," Bugguide.net
Donald, Claire L., Padet Siriyasatien, and Alain Kohl. 2020. "Toxorhynchites Species: A Review of Current Knowledge," Insects 11(11): 747.
McAlister, Erica. 2017. The Secret Life of Flies. Buffalo: Firefly Books. 248 pp.
Ricciuti, Ed. 2019. "Meet the Mosquito With a Big Appetite - for Other Mosquitoes," Entomology Today.

Conflicting Advice Is Killing the Rewilding Movement

All the major figures leading the modern conservation movement agree that converting your yard into wildlife-friendly habitat is the most important and impactful thing you can do to turn the tide of bird and insect decline. As for how to do that, there is precious little agreement to be had. The result is analysis paralysis, and the “lawnscape” continues to dominate urban, suburban, and even rural areas.

"No Mow May," or "No, go ahead?"

This happened to myself and my partner. We finally own a modest home in Leavenworth, Kansas, with modest yards in front and back. Our goal is to begin planting native flora, but we were confronted with opposing recommendations on how to begin. “Kill the lawn with a single application of glyphosate” says one authority. “Suffocate it” advised another party. Heck, do we even have a lawn to begin with? Sure, there is some grass, scattered among thick patches of henbit, red deadnettle, violets, dandelions, plantain, wild….garlic?

"Before" we did anything

The result is that after over a year of living here, my wife finally took the initiative to start burying a section of the yard under a layer of carboard covered in mulch. Now we wait four to six weeks….”No, it will likely take four to six months” said someone commenting on our proud social media post. Great. Next, we will hear “till once!” versus “no, don’t till at all!”

We need to stop circulating memes and sound-bite articles in the media….We want the easy fix, but it is rarely the best avenue.

I agree that one has to be patient. Nature generally operates at a snail’s pace, while we are now too eager after having flailed in the turbulent seas of “how-to” recommendations. We should know better, of course. We should learn from our previous experiences, however few.

Here comes the cardboard and mulch!

At our previous home in Colorado Springs, Colorado, where we lived in a townhouse, we had about a 5x10 “yard” in the back, a tiny patio adjacent, and a shed, with a fence enclosing all of it. We planted milkweed in hopes of attracting Monarch butterflies. It was at least three years before the plant flowered. Oh, it proliferated underground, sending up shoots all over the place, but it was at year five before we found Monarch caterpillars. Garden gratification is seldom instant.

Where things stand right now....

We also put up a “bee condo,” a block of unfinished wood with holes of various diameters drilled into it. This effort did yield almost instantaneous results. Leafcutter bees and mason wasps began nesting. We also had sapygid wasps that parasitized the leafcutter bees. Neat fodder for blog posts.

Many experts now claim that bee condos are about the worst thing you can do. They attract parasites, become infested with mites and fungi, and are basically deathtraps for the very insect pollinators we are supposed to be helping. You need to replace the cardboard tubes inside the bored holes, if that is your style of bee block, or at least clean the cavities with a brush and dish soap diluted in water. I’m not sure exactly when you are supposed to do that….

Here in Kansas, bees simply nest in our siding. LOL!

Further, are we not giving bees and wasps enough credit for choosing healthy nest sites? They clean out cavities before they begin nesting anyway. Even in natural situations of old beetle borings in logs and dead, standing trees, there are always cuckoo wasps, leucospids, and others lurking, eager to parasitize the nests of other wasps, and bees. That is the way nature works.

Clover *does* feed the bees, and fixes nitrogen for other plants, but surely someone else will tell you differently....

Oh, I forgot about the dandelion controversy. Leave them, they are necessary resources for early-emerging pollinators. No, dandelion pollen and nectar has very low nutritional value. They do more harm than good. Do away with them….but, but….”No mow May!”

The bottom line is that recommendations will change based on new scientific research, and the collective experience of those gardening for wildlife. However, there is no one solution for every situation, every geographic location, every soil type, nor any other element that varies. We need to stop circulating memes and sound-bite articles in the media that claim otherwise. We most definitely need to stop the implied shaming of anyone who disagrees.

Daisy Fleabane "volunteers" in our yard and we are "weed tolerant."

We want the easy fix. It is in our human nature, but it is rarely the best avenue. Resist the impulse to jump on the latest bandwagon, and consult your state chapter of the Native Plant Society instead. Consult the list of noxious weeds for your state and eliminate any you find. Otherwise, be “weed tolerant” and see if most of those plants volunteering themselves are actually native wildflowers. Never use pesticides, fungicides, herbicides, or even fertilizers. Indeed, the soil is itself an ecosystem of microbes, and symbiotic fungi that enhance the vigor of plants.

Here at Bug Eric blog, I promise to continue sharing my own experiences, good and bad, and recommend dependable resources to further your own pursuit of biodiversity enhancement. Let me know what has worked (or not worked) for you. I will pass that along as well. Above all, please act, with whatever information you have already garnered. The inertia of inaction is the enemy of rewilding.

World Bee Day....A Little "Bee"hind

World Bee Day happened the other day, May 20, and it caught me off guard. I had never heard of it, and hustled to make some social media posts for the Facebook groups I founded or administer. I will plan a bigger campaign of celebration next year, but for now....

In fairness, World Bee Day has not been in existence very long. The date honors the birthday of Anton Janša of Slovenia, a pioneer of modern beekeeping in the eighteenth century. The United Nations passed a resolution submitted by Slovenia in 2017 to so honor him. While beekeeping in the northern hemisphere applies only to honey bees in the genus Apis, the U.N. has chosen to use World Bee Day as an opportunity to acknowledge all bee species, the vast majority of which are solitary and not managed by human beings.

North American bees range from giant "large carpenter bees" like this one....

Given the plight of pollinators in general, and the threats to apiculture (beekeeping) from mites, pesticides, industrial-scale agriculture, habitat destruction, and climate....anomalies of increasing frequency, it is easy to be pessimistic and sorrowful on World Bee Day. However, there are signs of hope all around us.

....to tiny Perdita mining bees like this one.

More people are taking up apiculture as a hobby, for example. Even better, many homeowners and small-scale farmers are recognizing the importance of native bees and building simple housing for them in the shape of "bee condos." Now a small movement is building to advocate for allowing those bare patches of soil in your lawn and flowerbed to lie fallow. The overwhelming majority of solitary bees in North America nest in burrows they excavate in the ground. Sometimes many females will nest in close proximity, giving the illusion of a "hive" or a swarm. This is not the case, and unless you step on a bee in bare feet or forcibly grab one, it is not going to sting you. Different bee species prefer different textures of soil, from sandy to clayey.

Leafcutter bees, Megachile sp., using "bee block."

Among the many reasons to celebrate World Bee Day this year is the rediscovery of the world's largest bee, Wallace's Giant Resin bee, Megachile pluto, nesting in termite mounds in Indonesia. It is an important reminder that the natural world is resilient, to at least some degree, and that most species can persist even in unfavorable circumstances.

Female cactus bee, Diadasia sp., entering her burrow.

Colorado, where my wife and I live, ranks fifth in bee diversity in the USA, boasting at least 946 species from huge bumble bees to tiny mining bees in the genus Perdita. California (1,651), Arizona (1,182), New Mexico (991), and Utah (979) rank ahead of us. That makes for a lot of bee species that need conservation if we want to continue enjoying wildflowers and eating everything from blueberries to squash to almonds.

We can encourage bees by....

• landscaping with native trees, shrubs, herbs, and flowers.
• Erecting bee blocks as supplementary housing for solitary bees (and wasps) that normally nest in the dead trees we cut down and logs we haul off.
• Become "weed tolerant" of plants that volunteer in our yards, as long as they are not state-listed noxious weeds. Chances are they are native or naturalized wildflowers instead.
• Leave a few bare patches in the lawn (if you still insist on having a lawn) and flowerbeds so that ground-nesting bees have a place to call home.
• Advocate for changes to municipal and HOA codes and rules that currently discourage eco-friendly landscaping.

It goes without saying that eliminating pesticides and other chemicals from your yard and garden will greatly benefit all life, not just on your property but elsewhere, too, as pesticides drift on the wind and flow in runoff from rain and watering.

Female sweat bee, Agapostemon sp., living up to her name.

World Bee Day is behind us this year, but no worries. You can gear up now to celebrate National Pollinator Week next month, June 17-23, 2019. Tell me how you plan(t?) to respect that designated "holiday." Maybe you need to do what I should do, which is call my governor and ask why Colorado is not yet on the map for it....

Cuckoo bee, Nomada sp., leaving (left), small carpenter bee, Ceratina sp., arriving (right).

Pollinator Drones Can Buzz Off

It has just been revealed to the media that Walmart filed an application on March 8 for a patent on miniature drones designed to pollinate crops grown by the retail giant for sale in its grocery stores. The company cited evidence of declines in bee populations and the need to supplement the pollination services provided by insects. It is the opinion of this writer and entomologist that this high tech response to a very serious organic and complex ecosystem problem is inappropriate, and troubling in many ways.

© Dave Simonds and Economist.comDrones are not alive

The idea of using tiny drones to accomplish the pollination of flowers, at least in agricultural systems, is nothing new. The Japanese built drones specifically for the cross-pollination of lilies. The videos of the machines in action only served to expose how clumsy and blundering they are compared to the direct and delicate maneuvers of bees. It seemed miraculous that the flower parts were not seriously damaged by the bulky and bouncy, propeller-driven craft.

Why are we so eager to replace complex living organisms with feeble facsimiles manufactured in robotics labs? Have we decided that it is acceptable to consider this as a viable “solution” to a much larger problem? I do not recall casting a vote for this myself. How long will we tolerate businesses and corporations to dictate the level of biodiversity we can do without? This is why science is getting an increasingly bad rap. Scientists are fast becoming beholden to investors, shareholders, and other private interests, and less accountable to the public. Independent, transparent, and government-sponsored research may soon be a thing of the past, if it is not so already.

The implied definition of “bee” in this particular instance is the Western Honey Bee, Apis mellifera. If that is not the case, then Walmart needs to speak up; but in the course of clarification, Walmart may expose a willingness to consider all solitary and native bee species as expendable, as long as we are able to pollinate the crops that feed us. Wildflowers and trees and shrubs are a non-issue in this scenario. They are not viewed as anything necessary to human civilization or financial prosperity. Emphasis on prosperity, as the business world tends to equate civilization with exponential fiscal growth.

Drones are not cute and fuzzy

Might it be cheaper to employ drones instead of honey bees? Maybe. Apiculture is itself an industry, with attendant expenses that are passed on to the customer. Many large-scale beekeeping enterprises involve the transcontinental movement of hives to fields and orchards where they are needed to effect pollination of almonds and other crops. This is not a cheap endeavor, and for all I know, some accountant has crunched the numbers for Walmart and declared that bees are inferior to drones from a simple cost-benefit analysis.

Replacing bees with machines cheapens our humanity in many other ways, though. There is no substitute for interactions with other living organisms, though we seem hell-bent on trying to make it so. We erect all manner of filters between ourselves and other humans, even. I am beginning to feel the need to apologize that you are reading this message from a static screen instead of hearing it from my lips, in person, with all the nuances of annunciation and emphasis, all the facial expressions that amplify my concern.

Drones are not specialized like this squash bee to pollinate specific kinds of flowers

Sam Walton’s heirs may literally prosper with every effort to simplify their business, and the lives of their customers, but I prosper most in the chaos that is wild nature. My psyche requires that if I am to be civil to my fellow man. A vast field of corn, uninterrupted by hedgerows, windbreaks of trees, or other hints of what used to be there, is a vast wasteland to my mind and soul. Indeed, farming practices that enhance biodiversity can be cost-saving, too. The more wild, unmanaged pollinators, the more predatory and parasitic insects, the more birds, the more wildflowers (you may call them “weeds”), the less need for fertilizers, herbicides, pesticides, and other chemical dependencies. The better state of mind of the farmer, too, the more adventures their children can have exploring the acres.

I could drone on, but you get the point. We can continue to impoverish our lives by distancing ourselves from nature, or we can choose to embrace it, despite its unpredictability. The future is in the latter approach. The former has no future.

Being Thankful for Bugs

This is a repost from November 28, 2014, but it still applies today; and not just for the American holiday of Thanksgiving, but for every day in every location on the globe. Life as we know it would not be possible without insects and their kin.

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A couple days ago the following post crossed my Facebook newsfeed, and it is an excellent reminder of why insects and other arthropods are so important to us as human beings, and to the planet Earth as well.

Honeybee pollinating flower in Arizona

"Thanksgiving is tomorrow …and we all have much to be thankful for. But don’t forget to thank our pollinating friends (bees, beetles and a host of other critters) that provide 1 out of every 3 mouthfuls of food and drink we consume. Without them, and the invaluable service they provide, our lives and our world would be drastically different. Happy Thanksgiving!"

Ecosystem Services

Beyond pollination, insects and related invertebrates furnish many other "ecosystem services" that we can't easily put an economic price on. They are responsible for seed dispersal in many plants. They are at the front lines in the decomposition process for all organic matter be it animal or vegetable. Their activities aerate and mix the soil. They serve as the basis of the food chain, feeding other invertebrates and many vertebrates from fish to birds to bats to aardvarks and anteaters.

Dung beetle pair rolling dung ball in Kansas

A scientific article was published in 2006 in the journal Bioscience that attempted to quantify just four of these ecosystem services: pollination, pest control in croplands, waste (dung) removal on rangeland, and food for wildlife (recreational hunting, fishing, birdwatching, etc). The carefully calculated estimate of the value insects thus provide, in the United States alone, was a staggering sixty billion dollars ($60,000,000,000).

Golden-winged Skimmer dragonfly in GeorgiaWatchable Wildlife

Insects are quickly becoming "watchable wildlife" in their own right. Countless field guides and online resources cater to those who enjoy observing butterflies, dragonflies, moths, tiger beetles, and nocturnal "singing insects" like katydids and crickets. What will the next craze be? It is clear that these communal passions are not only sustaining themselves, but actually growing in popularity, as witnessed by the explosion of National Moth Week, for example. There are festivals for everything from butterflies to bees, even mosquitoes (in Paisley, Oregon).

Drosophila "fruit fly" in ColoradoResearch and Medicine

Insects and other arthropods are also used extensively in scientific research and medicine. We owe much of our knowledge of genetics to research conducted on "fruit flies" (Drosophila spp.) and flour beetles (Tribolium spp.). Fly larvae are used to clean wounds because they carefully avoid living tissue while secreting fluids with antibiotic properties. Many patients with joint inflammation and diseases swear by "bee venom therapy," even though it may be relegated to the category of alternative medicine by the healthcare establishment. Spider, scorpion, and insect venoms continue to yield promising derivative compounds. Some fireflies produce chemicals that show promise in fighting herpes.

Paper wasp nest in Cape May, New JerseyArt, science, and inspiration

Many people find inspiration in the world of insects. We owe the invention of paper to ancient peoples in Asia who observed paper wasps constructing their nests of chewed wood and plant fibers. We continue to refine the performance of our aircraft thanks to experiments on, and observation of, insect flight. Insects are being enlisted in the fight against terrorism because of their acute chemo-tactile senses that far exceed our own abilities to detect harmful substances and agents; and their small size that allows them access to the most remote cracks, crevices, and other cavities. Artists are endlessly inspired by the beauty, colors, and patterns of insects.

Cochineal scale insects on cactus, ColoradoRaw Materials

Lastly, insects and their kin provide us with many invaluable raw materials and products. Silkworms and spiders produce silk with different properties of strength, durability, and elasticity, often exceeding the quality of synthetic fabrics. Honeybees produce honey, and beeswax. Cochineal scale insects produce organic scarlet dye, and the lac scale insect yields shellac. Many cultures also consider insects themselves as a staple food source, a practice known as "entomophagy" that is steadily gaining favor in modern western cultures.

Tiny gall wasp (Cynipidae) I found yesterday, ColoradoPersonally....

Personally, I value insects and arachnids as an endless source of fascination. Their physical diversity is mind-boggling. The behaviors they engage in are amazing. You can find them anywhere and everywhere, even inside your own home in the middle of a cold winter. Their stories demand telling, and I feel honored and privileged to have a modicum of ability to bring them to life for others.

What is it about "bugs" that you are thankful for? I encourage you to share your thoughts and feelings here.

Source: I wish to thank the Missoula Butterfly House and Insectarium for sharing the quote at the top of this post. Please visit their website, donate if you are able, and "like" them on Facebook. Thank you.

Are We Saving Species by Rescuing One Individual Bug?

NOTE: I had to change the original title of this post because, believe it or not, it is a trademarked phrase! The owner of said patent/copyright informed me of this on September 17, 2019 and asked that I remove the title.

Increasingly, thanks to social media, I am struck by how many people attempt to save individual insects they find injured or lethargic. On one hand this empathy for other life forms is encouraging, but on the other hand the energy investment is grossly misplaced.

© Youtube.com

The problem is that the media has painted honey bees and Monarch butterflies in particular as highly vulnerable if not on the brink of extinction. The implied message is that every individual of these species needs protection in every way possible! Consequently, people spend more time "rescuing" individual specimens than in protecting or creating habitat, working to curb pesticide use in their community, or engaging in other strategies that would have a far greater impact on improving the health of the entire species.

Another problem is that most people are not knowledgeable enough to recognize when a given insect really is in trouble. The wrong assessment happens over and over with bees in particular. Bees often become inactive when it gets too cold for them. They rest on whatever object is available and often this is a more conspicuous spot than normal. A good Samaritan human believes the insect is in peril and needs the equivalent of a sugar-water IV, stat! No, it does not.

Further, in late summer and fall, chances are you are saving a male bee, which is even less useful. Male bees live a short life in which their only purpose is to mate with a female. They do not possess pollen baskets, so are less effective pollinators than female bees.

Another aspect of life that we forget is that insects, like any organism, are prone to developmental problems that cannot be overcome. Improper emergence from a chrysalis will leave a butterfly crippled beyond repair. It happens. Insects reproduce in large numbers to overcome those deficits. Insects are incredibly durable once they mature, and losing half a wing barely slows down a butterfly or a bee. We should be in awe as much, if not more, than in sympathy, let alone pity.

Ok, so last month my wife and I were on vacation in Cape May, New Jersey, and we happened upon a Monarch trapped in a spider web. We intervened. It was a quick fix, simply disentangling the insect and sending it on its way. The whole investment was maybe forty seconds. We understood the insect could collide with a vehicle later that same day. Our expectations for the survival of individual insects are low, given our knowledge of their biology.

Contrast that example with an online video that shows how to mend a broken wing on a Monarch. More than a few such organizations have exploited the "sky is falling" scenarios centered on the Monarch, and one has to question the motives of some of them. Yes, older, established conservation organizations use overly alarming narratives, too, but the best ones measure their tone and can point to historic successes in legislation and habitat protection.

You want to curb insect mortality? Then give up driving. For every insect you nurse back to health, you kill dozens, if not hundreds in the course of operating your motor vehicle. Even bicyclists take their toll. I have seen countless insects mortally wounded, or crushed, on bike paths.

Basically, insects are better served by actions aimed at enhancing habitat health, and planting native vegetation in the landscape of your own property where you are able. Tear out the lawn, or most of it, and do your best to mimic the natural ecosystem where you live. Want to go a step farther? Start a dialogue with city and county officials to restructure weed ordinances and other codes that currently restrict the ability of homeowners to plant for wildlife. Educate your homeowners association to make those communities more wildlife-friendly without compromising safety and property values.

Also, stop insisting that one species is somehow more worthy of our attention than any other. Stop categorizing insects as "friend" or "foe." Such distinctions do not apply to the overwhelming majority of life on this planet.

Be proud of yourself for having empathy for other living things; but, channel that into something that will make a difference beyond the individual insect or arachnid. Do intervene for birds, mammals, reptiles, and amphibians, all of which have far longer lifespans than invertebrates, but make sure you do it legally and correctly. Carry on.

White Prairie Clover: An Awesome Blossom

I am not a botanist by any stretch of the imagination, but I am pretty sure that the insect magnets in the shortgrass prairie field up the hill from my home here in Colorado Springs, Colorado, are White Prairie Clover, Dalea candida. What follows is a sampling of the many bees, wasps, butterflies, flies, and other insects that come to the flowers of this plant; and a little information on Dalea in general. Much of the pollinator enhancement literature touts Purple Prairie Clover, D. purpurea, so one has to dive deeper.

A cuckoo bee, Nomada sp., forages while a male sweat bee, Lasioglossum sp., approaches

Prairie clovers are in the pea family Fabaceae. White Prairie Clover in Colorado occurs from 3,400-7,200 feet in elevation, and blooms from June to August. It is a low-growing plant, flowers on stalks up to two feet tall, but the ones I see are no more than one foot tall and sometimes difficult to discern among the tall grasses, cacti, and yucca they share the prairie habitat with. This species is widespread from the Front Range across the Great Plains, north to Saskatchewan and Wisconsin, and as far east as Tennessee, Georgia, and South Carolina.

Common Checkered-skipper, Pyrgus communis

The flowers are arranged in a cone, and bloom from the bottom to the top. The cycle can last up to a month, providing insects with pollen and nectar over a longer period than most flowers, and often at a time when few other plants are blooming. The down side to this plant, from the perspective of the photographer/entomologist is that insects quickly move to the side of the flower opposite the photographer, where they are hidden from view, then fly to another florescence and repeat. I missed a good number of opportunities because insects move across the flowers so speedily.

Male Hunt's Bumble Bee, Bombus huntii

Bees of all stripes seem to enjoy White Prairie Clover, and male bees may visit not only for nectar but for mating opportunities with foraging females. I saw far more male sweat bees, Lasioglossum (subgenus Dialictus), for example, than I did females. Even male bees can be sufficiently hairy enough to perform pollination services, even though they are not gathering pollen to feed to offspring. This is especially true for bumble bees and longhorned bees.

Sweat bee, family Halictidae

Female mining bee, Calliopsis sp.

Male longhorned bee, tribe Eucerini, family Apidae

Cuckoo bee, Triepeolus sp.

A second species of Triepeolus

Butterflies visit the flowers, too, mostly for nectar, but the caterpillar stage of some species feeds on the foliage of Dalea. This is the case for the Southern Dogface, a rather scarce species here in Colorado. In addition to the butterflies shown here, I also spotted a Variegated Fritillary making a brief stop on a blossom.

A "crescent" butterfly, Phyciodes sp.

Two Reakirt's Blues, Echinargus isola

At least one moth visited White Prairie Clover during my two separate observations: the Jaguar Flower Moth, Schinia jaguarina.

Jaguar Flower Moth, Schinia jaguarina

Wasps were highly diverse and plentiful visitors, but made some of the shortest refueling stops of all the insects observed.

Great Golden Digger wasp, Sphex ichneumoneus

Thread-waisted wasp, Ammophila pictipennis

Female Ammophila procera

Male Ammophila procera

Ammophila ferruginosa

Black & Yellow Mud Dauber, Sceliphron caementarium

Male sand wasp, Bembix sp.

Male beetle-killer wasp, Cerceris sp.

Male beewolf wasp, Philanthus ventilabris

Male thynnid wasp, Myzinum sp.

Female thynnid wasp, Myzinum sp.

Cuckoo sand wasp, Stizoides renicinctus

Flowers that are attractive to pollinators are also attractive to their predators and parasites, and that was certainly obvious during my watch periods. The bee assassin, Apiomerus sp., was somewhat surprising because the bug is so conspicuous atop such a small flower. I suspect it was having little or no success. Meanwhile, the odd, cream-colored ambush bug, Phymata sp., could achieve proper concealment, even to the point that I recall seeing only one when there were surely many.

Bee assassin bug, Apiomerus sp.

Thick-headed flies accost bees or wasps in mid-air and ram an egg between the victim's abdominal plates. The fly larva that hatches then feeds as an internal parasite. This often kills the host, but not always.

Thick-headed fly, Zodion sp.

Thick-headed fly, Physocephala sp.

My personal experience is that white flowers, or at least pale flowers, attract a far greater diversity of insects than red, blue, or purple flowers, and even more than yellow flowers in some cases. It is puzzling to me that few pollinator advocates bother to reveal that fact. Maybe because everything is bee- and butterfly-centered, and still color-intensive in the landscaping sense, white flowers get short shrift in recommendations for the garden.

Grasshopper wasp, Prionyx atratus or Prionyx subatratus

It may be worth it to harvest seeds from wild plants, but please do not dig up mature White Prairie Clover. The plant has a deep taproot. One may also wish to consult their state's Native Plant Society for potential sources of seed. The plant flourishes in full sun and dry soils, requiring only a medium quantity of water.

Green-eyed wasp, Tachytes sp.

I will try and produce more floral-themed, pollinator-rich posts in the future to help readers in making landscaping decisions that support native plants as opposed to exotic ornamentals and inappropriate cultivars. Feel free to make suggestions as to additional resources.

Mason wasp, Euodynerus sp.

Sources: Holm, Heather. 2017. Bees: An Identification Guide and Native Plant Forage Guide. Minnetonka, Minnesota: Pollination Press LLC. 224 pp. Useful mostly for Upper Midwest U.S.
Mader, Eric, et al. 2011. Attracting Native Pollinators. North Adams, Massachusetts: Storey Publishing. 372 pp. A Xerces Society guide.
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