Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
 

Register · Log In
HomeGuideID RequestRecentFrassForumsDonateHelp
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar
Upcoming Events

Registration is open for the 2024 BugGuide gathering in Idaho July 24-27

Moth submissions from National Moth Week 2023

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Photos of insects and people from the 2018 gathering in Virginia, July 27-29


Previous events
TaxonomyBrowseInfoImagesLinksBooksData
Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Ants, Bees, Wasps and Sawflies (Hymenoptera) » "Parasitica" - Parasitoid Wasps » Braconid and Ichneumonid Wasps (Ichneumonoidea) » Ichneumonid Wasps (Ichneumonidae) » Rhyssinae » Giant Ichneumonid Wasps (Megarhyssa) » Black Giant Ichneumonid Wasp (Megarhyssa atrata)
Photo#400577
stingless wasp - Megarhyssa atrata - male
Copyright © 2010 Samuel Millott

stingless wasp - Megarhyssa atrata - Male
Hampshire County, Massachusetts, USA
May 25, 2010

Images of this individual: tag all
stingless wasp - Megarhyssa atrata - male stingless wasp - Megarhyssa atrata - male
tag · login or register to post comments
Contributed by Samuel Millott on 25 May, 2010 - 1:16pm
Last updated 25 February, 2021 - 2:40am

Moved
Moved from Norton's Giant Ichneumonid Wasp.

This is far too yellow-marked, both on the mesopleuron and the mesoscutum, to be M. nortoni.
… Jonathan Hoskins, 25 February, 2021 - 2:40am login or register to post comments

Moved
Moved from Giant Ichneumons.
… Bob Carlson, 27 May, 2010 - 1:35pm login or register to post comments

Moved
Mating or attempting to mate with female that is ready to emerge. Preemergence insemination is discussed in this 1981 paper by Crankshaw & Matthews. Is the dead tree a conifer or hardwood?

Moved from ID Request.
… Bob Carlson, 25 May, 2010 - 5:59pm login or register to post comments

 
white pine, most likely
white pine, most likely
… Samuel Millott, 27 May, 2010 - 11:06am login or register to post comments

 
-
That would rule out Tremex columba as the host, which, in turn, would indicate the species to be Megarhyssa nortoni, which parasitizes siricids that attack coniferous trees.
… Bob Carlson, 27 May, 2010 - 1:33pm login or register to post comments

Ichneumon
of some kind I believe.
… Andrew Williams, 25 May, 2010 - 3:00pm login or register to post comments

 
yes...
move it to Ichnuemons and you might get more expert attention
… J. Anderson, 25 May, 2010 - 4:17pm login or register to post comments

Comment viewing options
Select your preferred way to display the comments and click 'Save settings' to activate your changes.

Disclaimer: Dedicated naturalists volunteer their time and resources here to provide this service. We strive to provide accurate information, but we are mostly just amateurs attempting to make sense of a diverse natural world. If you need expert professional advice, contact your local extension office.

Contributors own the copyright to and are solely responsible for contributed content.
Click the contributor's name for licensing and usage information.
Everything else copyright © 2003-2024 Iowa State University, unless otherwise noted.

Bugguide is hosted by:

Plant Pathology, Entomology and Microbiology at Iowa State University logo

Printer Friendly Version 		Terms of Use
Privacy Statement
Site Map
Contact