stink bug – Field Station /field-station/tag/stink-bug/ UW-Milwaukee Mon, 06 Jan 2025 17:53:25 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 The Twelve (or so) Bugs of Christmas /field-station/bug-of-the-week/the-twelve-or-so-bugs-of-christmas/ Wed, 25 Dec 2024 17:50:00 +0000 /field-station/?p=15763 Season’s Greetings, BugFans, It’s time to celebrate a dozen (or so) of the beautiful bugs that posed for the BugLady this year (and that have already graced their own episodes).  Click on each photo to read more. Great Spangled Fritillary …

The post The Twelve (or so) Bugs of Christmas appeared first on Field Station.

]]>
Season’s Greetings, BugFans,

It’s time to celebrate a dozen (or so) of the beautiful bugs that posed for the BugLady this year (and that have already graced their own episodes). 

Click on each photo to read more.

Great Spangled Fritillary

A butterfly on the aptly-named butterfly weed.

European Mantis

The BugLady intercepted this mantis as it was attempting to cross the road and moved it to a friendlier spot. The tiny bulls-eye in its tiny armpit tells us that it’s a European, not a Chinese mantis. Both are non-native, invited to God’s Country by gardeners who buy them and release them as pest control. (Alas, to a mantis, a honey bee looks as tasty as a cabbage worm).

When fall freezes come, they die, leaving behind ǴDZٳ𳦲(egg cases) that . Eggs in ooethecae can survive a mild winter here but not a Polar Vortex; . Every fall, The BugLady gets asked if it’s possible to keep a pet mantis alive in a terrarium over the winter. Short answer—no. Its biological clock is ticking pretty loud.

Gray Field Slug

It was an unusually hot and muggy day, a day when the cooler air above the Lake did not quite reach inland (15 yards) to the BugLady’s front door. She glanced out and saw a gray field slug extended at least six inches on the storm door. Read here for more info on gray field slugs.

Candy-Striped Leafhopper

When a spectacular insect picks an equally spectacular perch. What a treat!

Brown-Marmorated Stink Bug

This stink bug shared the hawk tower with the BugLady on a cool day in late October. They’re a huge pest in the East because they eat orchard crops in summer and hole up/stink up in your house/closets/attics/coat pockets/boots in winter, and they’re becoming more numerous here.  Remember, not every brown stink bug is a BMS. Look for the pale stripes on the antennae and on the legs.

Orange Sulfurs

They are very common, and they don’t put on airs, they’re just quietly beautiful.

Tachinid Fly

When the BugLady thinks about Tachinid flies, she pictures the bristly, house-fly-on-steroids species that frequent the prairie flowers in late summer, but tachinid flies also come in “tubular.” The larvae of this one, in the genus Cylindromyia, make a living by parasitizing some moths and grasshoppers and a few species of predatory stink bugs (for which efforts they are not appreciated, because the predatory stink bugs are busy preying on plant pests).The adults, which are considered wasp mimics, feed on nectar. 

Ebony Jewelwings

They are frequent flyers on these pages. The spectacular males usually have a metallic, Kelly-green body, but some individuals, in some light, appear royal blue.

Shamrock Orbweaver

The BugLady loves the big ArgiopeԻAraneusǰɱ𲹱., they grow slowly throughout the summer until they reach a startling size. Most go through the winter in egg cases. Some hatch early but stay inside and ride out the winter in the case, eating yolk material and their siblings, while others hatch in spring. They emerge from the egg sac, and after a few days, balloon away in the breezes. and see why, like the Marbled orbweaver, they’re sometimes called Pumpkin orbweavers.  

Skimming Bluet

Note to self: ask insects to pose on the very photogenic leaves of Arrow Arum. 

Red-Velvet Mite

The BugLady is frequently struck by the fact that the weather data we rely on was measured by instruments inside a louvered box that sits five feet above the ground, but the vast majority of animals — vertebrate and invertebrate alike — never get five feet off the ground in their lives. The weather they experience depends on microclimates created by the vegetation and topography in the small area where they live. Red velvet mites search for tiny animals and insect eggs to eat; their young form temporary tick-ish attachments to other invertebrates as they go through a dizzying array of life stages (OK — prelarva, larva, protonymph, deutonymph, tritonymph, adult). Read more about them here.

Bush Katydid

What child is this? A nymph of a bush katydid (Scudderia).

Ants with Aphids

While shepherds watched their flocks at night…… Some kinds of ants “farm” aphids and tree hoppers, guarding them from predators, guiding them to succulent spots to feed, and “milking” them — harvesting the sweet honeydew that the aphids exude from their stern while overindulging in plant sap.

Eastern Pondhawk

And an pondhawk in a pear tree.


Whatever Holidays you celebrate, may they be merry and bright and filled with laughter.

The BugLady

The post The Twelve (or so) Bugs of Christmas appeared first on Field Station.

]]>
Monochromatic Stink Bug-Hunting Wasp /field-station/bug-of-the-week/monochromatic-stink-bug-hunting-wasp/ Wed, 11 Oct 2023 19:06:17 +0000 /field-station/?p=14386 Note: All links leave to external sites. Howdy, BugFans, Another wasp with a dynamite name!  When the BugLady found this wasp, she was struck by its curious appearance – fly-like eyes, waspy antennae, “broad-shouldered,” but with a very short abdomen …

The post Monochromatic Stink Bug-Hunting Wasp appeared first on Field Station.

]]>
Note: All links leave to external sites.

Howdy, BugFans,

Another wasp with a dynamite name! 

When the BugLady found this wasp, she was struck by its curious appearance – fly-like eyes, waspy antennae, “broad-shouldered,” but with a very short abdomen (“It’s compact,” says ). 

It’s in the family Crabronidae, the Sand wasps and Square-headed wasps, which have been featured before, most recently in the form of the Robust katydid-hunting wasp. Crabronidae is a large family that used to be lumped with the solitary wasps in the family Sphecidae, the mud daubers, sand wasps, and hunting wasps. There are lots of Crabronid species worldwide; they create egg chambers and cache paralyzed invertebrates in them for their eventual larvae to eat, and many species are very fussy about the kinds of prey they collect. Adults feed on nectar. 

Monochromatic Stink Bug-Hunting Wasps (Astata unicolor) (probably) live in grasslands and savannas (members of the genus Astata can be hard to differentiate, but the MSBHW is a widespread species in the East). Astata comes from the Greek word astatos, meaning “restless.” According to the Minnesota Seasons website, it’s found “across southern Canada, throughout the United States and Mexico, and in Central America” but is not common anywhere. Habitat/soil types probably help determine a species presence.  

These are very alert, curious, and fast-flying little (half-inch) wasps, with dark-tipped wings and a coating of silvery hairs. The males’ wrap-around (holoptic) eyes are typical of the genus. Here’s a .

A female MSBHW’s prey of choice are the mature nymphs and adults of a few genera of stink bugs, including the . Out West, their menu also includes the Western box elder bug.  

Males sit on perches to scout for females (those big eyes come in handy) – males emerge as adults about two weeks before females do, and they set up territories while they’re waiting (cherchez la femme). They advertise by making brief, circular forays from perches. 

Females dig tunnels as deep as 14” in loose soil. Heather Holm, in her epic book Wasps, Their Biology, Diversity, and Role as Beneficial Insects and Pollinators of Native Plants, writes that “after mating, the female begins excavating her nest in the ground, often preferring a partially concealed site with bare soil such as under a plant leaf. As she excavates the nest, she loosens soil with her mandibles and forelegs, then pushes the soil up the burrow with the end of her abdomen.” The tunnel contains several cells.

Holm continues, “She leaves the nest entrance open while searching for prey but while in the nest at night to rest, she closes the entrance with soil. She searches for predatory stink bug nymphs in vegetation and likely uses olfactory senses in addition to sight to find her prey. After , she grasps the prey by the antennae, then clutches it with her legs beneath her as she flies close to the ground back to her nest. She either enters the nest clutching her prey or she places it on the ground next to the entrance. If the latter, she enters the nest, emerges headfirst, then drags the prey down the burrow, clasping it with her mandibles.

Each cell is provisioned with approximately two to four stink bugs. She temporarily stores the stink bugs at the bottom of the burrow until enough are collected to fully provision the cell. She lays one egg on the first bug cached in the cell.

Ground-nesting wasps and bees have elaborate behaviors that help them relocate their nests. Holm says, “When she is ready to leave the nest, her orientation first begins on the ground as she walks, making several passes over the nest before taking flight. Then, she flies in circling arcs over the nest. When she returns to the nesting area, she lands on the ground with her prey, then walks around for a while, repeating a similar on-the-ground orientation to the one performed before departing the nest.”&Բ;&Բ;

This unobtrusive wasp is attracting some attention these days because it has discovered the invasive Brown marmorated stink bug (BMSB). In a study in Oregon, 64% of the observed prey taken by the MSBHW were BMSBs, and a few other stink bugs it eats are considered crop pests. Of course, solitary wasps are, well, solitary; you can’t just set up a hive and sic them on unwanted species, so they do their biological control on a small scale. 

The BugLady

The post Monochromatic Stink Bug-Hunting Wasp appeared first on Field Station.

]]>