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

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: 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

Subject: Kids study
Location: Lower Mainland Bc Canada
November 10, 2016 4:36 pm
Hello;
I have a son very interested in learning about animals and bugs and insects. he is always on the look out in my backyard for something new to discover. Today he found a bug I had never seen and we wondered if you could help and identify it for us. I have attached a picture. M
Signature: Tamara

Ichneumon:  Possibly Pimpla sanguinipes

Ichneumon: Possibly Pimpla sanguinipes

Dear Tamara,
This is a female Ichneumon Wasp, a parasitoid that preys upon insects and other arthropods and is generally very prey specific.  This is a large family with over 5000 identified species in North America and an additional estimated 3000 species according to BugGuide.  Based on this BugGuide image, also from British Columbia, we suspect it might be
Pimpla sanguinipes.

What's That Bug? does not endorse extermination

Subject: Cool bug in Atlanta
Location: Atlanta, GA
October 3, 2016 2:36 pm
Thanks for having this site, I’m a nature enthusiast and try to treat most bugs with admiration and respect. Saw this interesting bug in a hallway yesterday and was curious what kind of bug it is.
Signature: AB

Stump Stabber

Stump Stabber

Dear AB,
This is a Giant Ichneumon in the genus Megarhyssa, and it is commonly called a Stump Stabber because the female uses her lengthy ovipositor to lay eggs beneath the bark of trees where the larvae will feed on the larvae of wood boring Horntail larvae.

What's That Bug? does not endorse extermination

Subject: Mosquito
Location: Dayton Ohio
September 5, 2016 5:41 pm
Hello
On my way back from my daily run at the local hiking trail and this scary looking thing stuck to my windshield and didn’t move for quarter of a mile. I had to take a picture of it while driving but I was careful. But look at the stinger! I’ve never seen a mosquito quite like that.
This is sept. 6th in southwestern ohio
Signature: Nathan B.

Stump Stabber

Stump Stabber

Dear Nathan,
This is NOT a Mosquito.  It is a parasitic Giant Ichneumon wasp in the genus
Megarhyssa, and it is commonly called a Stump Stabber because the female uses her lengthy ovipositor to lay eggs beneath the bark of trees that are infested with wood boring larvae of Horntails, including the Pigeon Horntail.

What's That Bug? does not endorse extermination