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

Bald faced hornet grubs
Location: New Hampshire
September 13, 2011 1:05 pm
I’ve been watching these grubs fall from the hornets nest all morning. The adults pick them up and fly away with them. Are they next year’s queens?
Signature: Laura

Hornet Nest

Hi Laura,
We hope our readers know that they can just click on all photos posted after 2009 and get enlargements in a new window.  It is a nice feature of our site when it comes to making the information we have to convey even more accessible.  We must confess that we don’t know why the larvae are fleeing the nest and the workers are flying away with them.  Perhaps the hive is overpopulated and they are culling the grubs.  They may instinctively know how to select the most perfect and fecund of the brood while it is still larviform.  They may be choosing their heir because the entire nest is basically the mother.
We love your photo.  We hope to have some free time in the next month to be able to research the phenomenon it communicates. 

What's That Bug? does not endorse extermination

Amazing huge wasp
Location: Central Ontario (Algonquin Park)
September 12, 2011 8:50 pm
We saw this wasp/hornet at our campsite in Algonquin park August 2011. It was absolutely huge. As I recall it was more than 1” long. Any idea what this one is?
Signature: J. Wilson

Wood Waps

Hi J. Wilson,
We just finished posting a photo of a relative of your Wood Wasp.  Your species is
Urocerus albicornis and you can find matching images on BugGuide.

What's That Bug? does not endorse extermination

have never seen this one!
Location: central alberta canada
September 13, 2011 12:25 am
Hi there! My name is Rik.I live in kamloops BC canada,and have been working in Hinton Alberta Canada.On sept 12th 5pm i had gone into a bank whereby I had noticed a rather large insect on the inside window ledge.The insect was about 3 inches in length..i wonder what it is? Thank you …rik
Signature: rik in alberta canada

Giant Wood Wasp

Hi rik,
This is a Giant Wood Wasp,
Urocerus gigas, a species that is found in Eurasia as well as North America.  What appears to be a stinger is actually an ovipositor.  Because the larvae are wood borers, they can be spread and introduced to new locations by the shipping of wood products.  See BugGuide for additional information.

What's That Bug? does not endorse extermination

Large Flying Wasp like
Location: Central NJ
September 12, 2011 11:24 am
These things are swarming all over my lilac tree and seem to be killing it. Are they a stinging insect or something else? They are over an inch long and 1/4 inch in diameter.
Signature: Kathy – NJ

European Hornets Gather Lilac Bark to make paper.

introduced european hornets

Thank you so much.  I know the picture wasn’t great but I was scared to death to get too close since I am allergic to bees and wasps.  I see they do sting.  Don’t suppose you could let me know how I can save my lilac and send them away?
Many Thanks for your speedy reply

They are gathering bark to make their paper nest.  The hive should die out with the onset of winter.  We don’t really offer extermination advice.

What's That Bug? does not endorse extermination

It’s killing the trees!!!
Location: Avon, CT, USA
September 10, 2011 4:43 pm
Just wondering what kind of insect this is. I tried other bug identification sites and came up with nothing. Any help would be great. Thanks.
Signature: ???

Giant Ichneumon

Dear ???,
We have recently learned that Giant Ichneumons in the genus
Megarhyssa, like the one in your photo, are commonly called Stump Stabbers because of the long ovipositor that the female inserts in stumps and dying trees.  This Giant Ichneumon is not killing your trees.  The health of the trees were most likely already compromised when the trees became infested with the larvae of a wood boring wasp called the Pigeon Horntail, our Bug of the Month for September.  The Stump Stabbers are parasitic insects whose larvae prey upon the wood boring larvae of the Pigeon Horntails.  We believe your Stump Stabber is Megarhyssa macrurus.

What's That Bug? does not endorse extermination

winged umbrella
Location: Jamestown, RI
September 8, 2011 9:50 am
Hello Again – Found these two on a rudbeckia recently. Wondering what kind of moth/butterfly this might be shading what I think is a thread waisted wasp.
Signature: PeeGee

Crescent Butterfly and Thread Waist Wasp

Hi PeeGee,
We really like your photo of a Crescent Butterfly and a Thread Waist Wasp sharing the nectar from the Black Eyed Susan.   We believe the wasp is probably in the genus
Ammophila, based on these photos from BugGuide.  If our identification is correct, the wasps prey upon cutworms to provision a nest for their progeny.

What's That Bug? does not endorse extermination