Skip to main content

Some more (extremely cool) wasps

I'm on a bit of a wasp jag, but so be it. Wasps are awesome. Yesterday, while taking a quick stroll around the planted prairie at work (described RIGHT HERE), I stumbled into two interesting species. The good ole Canon came through in decent form, and I managed a few images.

There is a smattering of Queen Ann's Lace, Daucus carota, persisting in the prairie. I don't totally begrudge this Eurasian weed its space, as it is a good insect magnet. Not as good as some of the native parsleys, but not bad. Anyway, I was pleased to spot this smallish Hymenopteran busily scarfing up nectar. After a bit of a chase, I pinned down a few passable images.

It is a Potter Wasp, Eumenes fraternus, and when not visiting flowers for nectar or pollen, these wasps engage in far more grisly behavior.

A few weeks ago, I found these little adobe jugs stuck to the underside of an American Elm leaf just a stone's throw from the prairie. They are the handiwork of the aforementioned Potter Wasp, and little works of art they are. The female wasp provisions each adobe with paralyzed caterpillars, and then lays an egg within the grisly nursery. Upon hatching, the wasp grub is assured a supply of fresh meat.

Now this is a bona fide beast of a wasp. It is a female Black-and-yellow Mud Dauber, Sceliphron caementarium. Until this day, I had never managed a decent image of one, although they are fairly common. Unless one stakes out a nest that is actively being provisioned, or a muddy spot where nest material is being gathered, you are most likely to encounter a foraging female moving through the plants.

When on the hunt, these big wasps are frenetic. They clamber about plants in a fast, rather maniacal manner, rapidly inspecting flowers, stems, and leaves for victims. Black-and-yellow Mud Daubers are possessed of extraordinary senses, and if they detect a large bipedal interloper moving in, they're off in a flash.

However, in this case I spotted her from afar, and hung back. I knew she was on the hunt, and hoped she'd score a victim. All of a sudden, WHAM! She spotted a luckless spider cowering on a stem, and whacked it quick as could be. I was ready, and rushed into range, clicking away. The above photo shows her still in the act of stinging the spider with a potent neurotoxin which disables the victim nearly instantaneously. Her abdomen is doubled back nearly 180 degrees, and the ovipositor at the business end is firmly embedded in the spider.

You can see where the expression "wasp-waisted" comes from! In a few seconds the spider was sufficiently comatose and ready for transport to the nest.

These are the multifaceted chambers of a Black-and-yellow Mud Dauber nest. Like the Potter Wasp, it is made from wet earth which is artfully - and laboriously! - fashioned into these fancy crypts. You may have seen these stuck to the eaves of a building. The wasps often select human-built structures for their nest sites.

The story is largely the same as the Potter Wasp, except that this species provisions its chambers with paralyzed spiders rather than caterpillars.

If wee beasts were capable of the same level of thought, reasoning, and consciousness that we are, one can only imagine the constant level of terror that creatures such as spiders and caterpillars would endure. Just imagine a giant long-legged wasp tearing your way, and knowing in advance what your fate will be. It would be like living a Japanese horror sci-fi movie, except it's all real.

Comments

Lyn Miller said…
Hi, Jim- LOVE your wasp images and info. I've loved Potter Wasps ever since I discovered one putting a mud plug in the screw holes of my boom box outside, and looked it up and learned what it was doing.
May I print a couple of your Rough Boneset photos to stick into my wildflower guide?
Thanks!
Lyn Miller
Fran said…
Very interesting and great photos! Thanks..Wasps are fascinating. The Digger Wasp is an interesting one too

Popular posts from this blog

The Pinching Beetle, a rather brutish looking bug

The world is awash in beetles, and they come in all shapes and sizes. Few of them can match the intimidation factor of a Pinching Beetle, Lucanus capreolus, though. Those formidable looking mandibles look like they could slice off a finger.

Today was one of those coolly diverse days. I started off down in Fayette County, visiting the farm of a friend. He has restored about 25 acres of wetlands, and the response by the animal community has been nothing short of phenomenal. Blizzards of dragonflies of many species, amphibians galore, and nesting Blue-winged Teal, Pied-billed Grebe, and Sora. Among MANY other things. And all in a short two years. Add water and they will come.

Then, working my way home, I ducked into a Madison County cemetery that has a thriving population of Thirteen-lined Ground Squirrels, and shot images of our native prairie dog. Then, I stopped at a spot along Little Darby Creek, waded on in, and procured some pretty nice shots of various stream bluets and dancers. …

Calliope Hummingbird in central Ohio!

A hatch-year male Calliope Hummingbird strikes a pose. Small but tough, the hummingbird was feeding actively yesterday in 39 F temperatures. It frequents feeders and gardens at a home in Delaware County, Ohio, about a half-hour north of Columbus.

Fortunately, the wayward hummer appeared at the home of Tania and Corey Perry. Tania is a birder, and knew right away that the hummingbird was something special. For a while, the identification was up in the air, which isn't surprising. The Calliope Hummingbird used to be placed in its own genus, Stellula, but has recently been submerged into the genus Selasphorus, which includes Allen's, Broad-tailed, and Rufous hummingbirds. The latter two, especially, are quite similar to the Calliope in subadult plumage. Rufous is the default "vagrant" hummingbird here, with dozens of records and birds turning up annually. There is but one Ohio record of Allen's Hummingbird, from late fall/early winter 2009. Ditto the Calliope Hummi…

Ballooning spiders

Fear not, ye arachnophobes. The subject of this entry is indeed about spiders, but the star of the show is about as cute as a spider can get. And you'll want to know what we're about to learn...

On my recent West Virginia foray, we were strolling down a seldom-used lane, when a bright yellow object caught our eye. It was a goldenrod crab spider, Misumena vatia, on top of a post! Not only that, she - it is a girl - was acting extraordinarily goofy. The spider would stilt up as high as she could go on her legs, weave back and forth, jig side to side, and otherwise engage in what appeared to be spider break-dancing.

Click the pic for expansion, and you can see two columns of silk issuing from her spinnerets. This is an important point, as we set about determining what this non-web-making spider is doing.


So fixated was our spider on her task that she even rejected what would seem to me to be a perfectly scrumptious meal. This little caterpillar climbed rapidly up the post and dire…