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

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

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington

Euodynerus, golden - Euodynerus auranus - male

Euodynerus, golden - Euodynerus auranus - Male
Anza-Borrego Desert State Park, San Diego County, California, USA
May 1, 2008
Size: BL about 11-14 mm
This golden Eumenid was nectaring at Honey Mesquite. At least the first and second terga are entirely punctate. It looks quite a bit like a Parancistrocerus. We found it in Sentenac Cienega.

Images of this individual: tag all
Euodynerus, golden - Euodynerus auranus - male Euodynerus male, golden - Euodynerus auranus - male Eumenid, golden - Euodynerus auranus - male Euodynerus, golden - Euodynerus auranus - male Euodynerus, golden - Euodynerus auranus - male Eumenid, golden - Euodynerus auranus - male

Moved from Euodynerus.

Euodynerus auranus azotopus
This Euodynerus was identified to species by Doug Yanega as Euodynerus auranus azotopus distinguished by two features: (1) prongs on the lateral propodeum and (2) a short punctate area on T2 followed by a strong lip. My thanks to everyone who helped to identify this beautiful golden wasp.

Hi Lynn
This looks somewhat similar to Hartmut's post here, made ~4 yrs after yours. Same general "bioregion", photographed two months apart. Perhaps a lead?

Thanks again, Aaron, for pointing out the similarities to Hartmut's Euodynerus wasp. It's so interesting that two such attractive and similar (to the naked eye) wasps both overlap in the same bioregion. Such wonderful diversity in the insect world!

Golden Euodynerus
Aaron, thank you so much for bringing Hartmut's wasp to my attention. It is amazingly similar, and as you say, they are both in the same habitat and both out late summer to fall. I do see differences, but they are male and female, so that is not surprising. Also I see that Doug Yanega says that these wasps are really variable.

Definitely a lead that I appreciate very much!

Golden, indeed
14 mm is quite large for a male of this group. Females must be quite impressive.
Overall habitus and shape of metanotum and propodeum rather suggest a member of genus Euodynerus, with an apical margin of urotergite II reminding of Eastern E. hidalgo. Dr Buck's expertise is needed.

Size may be too large. I went back to my field book. I took five images before I wrote anything down and I see I had a question about the magnification I used. And, these guys are hard to measure. Let me revise BL to about 11 mm.

Size, reprisal
Thanks so much for your help and comments. Gene and I discussed size at breakfast. Four of The pictures are small images taken from rather far away, which is why I went with the 14 mm in the first place. Gene suggested the best way to handle would be to put the range 11-14 mm, which is what I have just done.

Euodynerus, male (CA)
A beautiful species indeed. It is not E. hidalgo because the hind margin of tergum 2 is thick, not thin and translucent. I am leaning towards E. castigatus or E. auranus but characters are conflicting: the propodeal angle seems to have several teeth (as in E. castigatus, see Fig. B5.31 of the Vespid Atlas (1)) but the apical flagellomere is black (as in E. auranus, should be yellowish in E. castiagtus: Fig. C26.3). If you have additional images showing the front side of the antennae that might be helpful.

Euodynerus male
I have submitted the last two images I have, but am not too hopeful. I really appreciate your help in trying to ID this eumenid. It's my first male, to boot, which I did not realize. Again, thanks so much.

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