Which Wasp Please - Chalybion californicum

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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Ants, Bees, Wasps and Sawflies (Hymenoptera) » Aculeata - Ants, Bees and Stinging Wasps » Apoidea sans Anthophila – Apoid Wasps » Thread-waisted Wasps (Sphecidae) » Sceliphrinae » Mud-dauber Wasps (Sceliphrini) » Blue Mud-dauber Wasps (Chalybion) » Common Blue Mud-dauber Wasp (Chalybion californicum)

Photo#420047

Copyright © 2010 Naomi Smith

Which Wasp Please - Chalybion californicum -

Brighton, Northumberland, Ontario, Canada
July 1, 2010

We have had quite a few of these around this year. How can I tell whether they are Steel Blue Cricket Hunters or Blue Mud Daubers. Help would be appreciated.

Images of this individual: tag all

Which Wasp Please - Chalybion californicum - male

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Contributed by Naomi Smith on 1 July, 2010 - 8:17pm
Last updated 17 December, 2017 - 6:39pm

Male

Note, your wasp has eleven flagellomeres and the females only have ten of them. In the second image, on the right-side antenna, they are easier to count. Also, his abdomen has all of the male qualities. (7 tergites)
Please note that after the last five years of placing our images, I'm sure that Dr. Ascher would now also agree with my analysis of your wasp.
Here is a link to my wasp's images, with more information that you may want to see:

Thanks

… Bob Biagi, 16 August, 2015 - 12:42am

Moved

Moved from ID Request.

… John S. Ascher, 1 July, 2010 - 11:46pm

Chalybion californicum

female

… John S. Ascher, 1 July, 2010 - 11:46pm

Thank you Dr. Ascher. Naomi

Thank you Dr. Ascher.
Naomi

… Naomi Smith, 2 July, 2010 - 6:51am

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