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

Subject: Wasp mimic?
Location: Columbus, OH
March 27, 2017 7:41 am
Hello! This insect landed on me and I cannot for the life of me figure out what it is (my best guess is some sort of sawfly). This picture was taken on March 25th in central Ohio in an urban enviornment–I was actually about to get in my car when it was spotted. The weather was sunny and in the 70’s. I am especially perplexed by the super long antenna and the fact that the colored bands on the abdomen do not wrap all the way around. Thanks!
Signature: Intrigued

Ichneumon we believe

Dear Intrigued,
We are posting prior to doing any research as we are rushed right now, but we believe this is an Ichneumon, a member of a very large family of Parasitic Wasps, that are often recognized by long antennae.  Here is a similar looking Ichneumon in the genus
Banchus from BugGuide.

Ichneumon


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Subject: What is this bug?
Location: Hatfield Forest UK
February 19, 2017 9:56 am
Good evening
We saw these bugs under tree bark of felled tree in Hatfield forest.
Do you know what it is please?
Thank you
Signature: Claire

Ichneumons

Dear Claire,
Though your image lacks critical detail, we are relatively confident these are parasitoid Ichneumon Wasps.  Some species feed on wood boring insects, which may explain their presence under the bark of a felled tree.  This images from Nature Spot of
Achaius oratorius look similar.  Ichneumon stramentor, also on Nature Spot, looks like an even better match.  According to Nature Spot:  ” The larva parasitise the Large Yellow Underwing and Setaceous Hebrew Character moth caterpillars (possibly others), the adult wasp lays its eggs inside the caterpillar, the developing larva then eats it from the inside.”  You can also find some interesting information on Paul’s Back Garden Safari.

Ichneumon

 

What's That Bug? does not endorse extermination

Subject: Flying insect
Location: Franklin, Wv
February 15, 2017 10:26 am
We live in a frame house with redwood siding. It is located in Franklin WV, in the mountains. The inset in the attached photo has shown up during the last two spring seasons. We typically see them between the screen and window in several rooms. It would seem that they must be coming out of the walls somehow, Once there was a swarm of perhaps 100 on the outside of the house under a kitchen window and just above the deck. While is is winter here with many sub-freezing days some of these insect appeared afrer a warm spell when it was 60-65F for a few days.
Signature: Pete Tuckerman

Ichneumons

Dear Pete,
These are members of the order Hymenoptera, the insect group that contains Ants, Bees and Wasps, and our initial impression is that they are most likely Parasitoid Wasps that prey on other insects, possibly an Ichneumon or Brachonid, but we would not rule out that they might be grouped with the Symphyta that includes Sawflies, Horntails and Wood Wasps.  We will continue to research this, and we will contact Eric Eaton for his valuable input.

Eric Eaton provides Family identification.
Daniel:
Those are definitely ichneumon wasps.  May have nothing to do with any host living in the redwood siding.  Many species of ichneumons overwinter as adults, often in large numbers, so this is not an unusual phenomenon.  I suspect the wasps are hibernating in the walls, or nooks and crannies in the siding.  They don’t sting, so no worries there, either.
Eric
author, Kaufman Field Guide to Insects of North America
http://bugeric.blogspot.com/

What's That Bug? does not endorse extermination

Subject: What kind of bug?
Location: Humble, Texas USA
February 5, 2017 12:48 pm
Dear Bugman,
We just found this bug in our yard on a leaf. He only has one wing here, so we’re not sure if he’s a flying bug. We can’t seem to find any others like him online. Can you please help us identify it? Thank you!
2/5/17
Signature: The Townsend family

Parasitic Wasp

Dear Townsend Family,
This is some species of Parasitic Wasp, but we do not believe it is in the highly diverse family Ichneumonidae.  While in shape it does resemble this image on BugGuide, your individual has a red thorax and no members of the genus pictured have a similar coloration.

Parasitic Wasp

 

What's That Bug? does not endorse extermination

Subject: identify bug
Location: cuernavaca, morelos, mexico
February 2, 2017 10:42 pm
Hello bugman,
I am a biology teacher in Mexico and my kids found this bug. I am pretty sure it will turn into a butterfly or a moth, ad would like to identify it to make a case kid my students. Please help!
Thank you
Signature: Teacher Nadine

Parasitized Caterpillar

Dear Teacher Nadine,
We are not certain if this is a Brushfooted Butterfly Caterpillar in the family Nymphalidae or an early instar Giant Silkmoth Caterpillar in the family Saturniidae, but we can tell you for certain it will not turn into either a butterfly or a moth as it has been attacked by a Parasitic Wasp that laid eggs upon it.  The eggs hatched and the larval wasps feed on the internal organs, then emerged and pupated on the Caterpillar’s body.  The wasp pupae are the white rice-like objects visible in your images.  This caterpillar will die before reaching maturity.  We will attempt to get a more definitive caterpillar identification from Keith Wolfe.

Parasitized Caterpillar

Keith Wolfe Responds
Dear Teacher Nadine and Professor Bugman,
Yes, this is an unfortunate immature saturniid, POSSIBLY in the genus Hylesia (sorry, moth caterpillars are not my forte).
Best wishes,
Keith

What's That Bug? does not endorse extermination

Subject: Weird bug
Location: San Antonio, Texas
January 12, 2017 2:55 pm
Hello,
I found this slender yellow bug on my way to get the mail today. It has large blue eyes, long antennae, semi-long legs, and a long backside. Can you help me figure out what kind of bug this is? I’ve searched 10 websites and have not been able to figure it out!
Signature: Courtney Richardson

Short Tailed Ichneumon

Dear Courtney,
This is a parasitic Ichneumon in the genus
Ophion, the Short Tailed Ichneumons.  You can compare your individual to this BugGuide image.  According to BugGuide:  “Most all Ophion larva are parasites of caterpillars” and “Adult Ophion species will hunt for their host caterpillar. Usually one egg is laid per host. Caterpillar usually dies during pupal stage though wasp larva remains to pupate itself.”  It should also be noted that Short Tailed Ichneumons are frequently attracted to lights, and though Ichneumons are considered harmless to humans, the Short Tailed Ichneumons are capable of stinging.

What's That Bug? does not endorse extermination