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

Upcoming Events

See 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

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Previous events

Sphex pennsylvanica? - Isodontia mexicana

Sphex pennsylvanica? - Isodontia mexicana
Allentown, Lehigh County, Pennsylvania, USA
August 15, 2004
Since the great black wasp was invoked in a recent ID request, which is now veering toward blue mud dauber, I figured I'd post what I believe (from consulting elsewhere) is sphex pennsylvanica. What are the identifying characteristics of this vs. the mud dauber? Certainly, this one doesn't have the metallic blue sheen on its hindquarters.

Moved from Isodontia apicalis.

Grass-carrier wasp
Pretty certain this is a "grass-carrier" wasp, Isodontia apicalis. The silver face and pale pubescence on the thorax is pretty distinctive. Same family and subfamily as Sphex, so confusion is normal:-) Differences are so subtle among the sphecids in general that it just takes years of practice to differentiate.


Thanks again
I guess I'll have to hunt for an actual great black wasp now.

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