Currently viewing the category: "Parasitic Hymenopterans"
What's That Bug? does not endorse extermination

Subject: Gorgeous Giant Ichneumon Megarhyssa
Location: Jonesboro, AR, USA
November 19, 2014 6:29 pm
Hello!
I found this lovely lady on my back porch today. We have had freezing temperatures lately and though it reached almost 50 degrees, I think she was pretty frigid. She was pretty easy to scoop up in some Tupperware. After some research I discovered she was harmless and about this time she warmed enough to begin trying to use her ovipositor on my Tupperware. Obviously, she never succeeded, but a couple of times she even tried beginning ‘unzipping’ her abdomen to begin laying eggs. Alas, she couldn’t figure out how to bore into plastic though so eventually gave up. I hope she was able to finish the process outside in spite of the dropping temperatures. I have seen many Ichneumon in our area, but never her particular species. I couldn’t get a good shot of the ruler, but from antenna to ovipositor she was about 5 inches.
Signature: Heather Buckholtz

Stump Stabber in captivity

Stump Stabber in captivity

Dear Heather,
A female Giant Ichneumon or Stump Stabber is an fearsome looking, yet harmless parasitic wasp.  Other than
Megarhyssa atrata, we are reluctant to attempt a species identification on members of the genus.

Linda Singleton, Sue Dougherty, Heather Buckholtz, Amy Gosch, Jacob Helton, Ria Diaz liked this post
What's That Bug? does not endorse extermination

Subject: TINY BEE?
Location: Fannie, Ark.
October 24, 2014 5:46 pm
This little bee (when I say little I mean smaller than the head of a pin) appeared in a photograph I took of another insect (Bluet). I literally could not see it until I had cropped the picture. It was on a Sicklepod Senna leaf. I didn’t think bees could get this tiny!
Signature: Bill

Chalcid Wasp

Chalcid Wasp

Dear Bill,
This is not a Bee, but rather a parasitic wasp in the family Chalcididae.  We believe we have identified it as
Conura amoena, and according to BugGuide:  “hosts: hairstreak butterflies (Theclinae).”  Most parasitic wasps prey upon the immature stages of insects, and we are guessing that this Chalcid Wasp was searching for caterpillars, though of the genus BugGuide notes:  “most attack Lepidoptera pupae; a few parasitize Coleoptera (Chrysomelidae, Curculionidae) and Diptera (Syrphidae); some are secondary parasites of Ichneumonidae and Braconidae.”

What's That Bug? does not endorse extermination

Subject: What is this???
Location: South Texas
October 22, 2014 10:42 pm
I see these bugs all over my door at night where I live. What is it?? Do they bite/sting? Help..
Signature: Hannah Gohlke

Ichneumon

Ichneumon

Hi Hannah,
This is an Ichneumon, a member of a large and diverse family of parasitic wasps.  Most Ichneumons are harmless, but some are capable of stinging, and this does appear to be on of those Ichneumons that sting.

Amy Gosch liked this post
What's That Bug? does not endorse extermination

Subject: Insect Identification
Location: South East UK
October 20, 2014 10:54 am
Afternoon,
Found the attached against my curtains this evening
I literally have no idea what it is or what it could be and have been searching images for the last hour trying to find out
Wondering if you could let me know what it is and if it is native to the uk? i have never seen anything like this and i have lived here all my life (some 27 years)
Signature: Thank you in advance

Ichneumon

Ichneumon

This is some species of Ichneumon, a member of a family of parasitic wasps.  Ichneumons prey upon many agricultural pests and most Ichneumons are very host specific, preying upon a single species or genus, though some prey upon entire families of insects and arthropods.  Ichnuemons are a highly diverse family with many members, and we cannot say for certain if you have a native species.  Ichneumons are sometimes introduced to prey upon other introduced pests.

Andrea Leonard Drummond liked this post
What's That Bug? does not endorse extermination

Subject: What’s this bug?
Location: Spring Grove, Pa (south central PA)
September 24, 2014 5:25 pm
We found several of these in a pile of firewood in our backyard. They have bored many holes in the logs.
Signature: Michele

Stump Stabber

Stump Stabber

Hi Michele,
This Giant Ichneumon in the genus
Megarhyssa is commonly called a Stump Stabber.  The female lays her eggs in wood that is infested with the wood boring larvae of Wood Wasps and the larval Stump Stabber parazitizes the larvae of the Wood Wasps.

What's That Bug? does not endorse extermination

Subject: Can you name this bug?
Location: Xalapa, Veracruz, Mexico. Google maps: 19.522574, -96.927901
August 30, 2014 5:09 pm
Hello, I found this bug. It has at least one week living at the same leaf. Here is the raining season. It does not move even when is raining. However it’s alive because when I was taking some photographs it moved a bit. Could you help me to identify this bug?
Signature: J. A. K.

Cochineal, possibly

Parasitized Slug Caterpillar

Dear J.A.K.,
This appears to be a Slug Caterpillar in the family Limacodidae, and it has fallen victim to parasitic wasps, most likely in the family Braconidae.  This image from BugGuide depicts a Slug Caterpillar infested with Braconids.

Dear Daniel,
Thank you for your help. It’s a shame I can’t help this small caterpillar, c’est la vie!.
This “bug world” is amazing, I hope I can learn more.
Cheers,
J Ko.

What's That Bug? does not endorse extermination