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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Ants, Bees, Wasps and Sawflies (Hymenoptera) » "Parasitica" - Parasitoid Wasps » Chalcidoid Wasps (Chalcidoidea) » Eurytomidae
Photo#174183
Very small wasp with feathery antennas
Copyright © 2008 Arthur Scott Macmillan

Very small wasp with feathery antennas
Sunnyvale, Santa Clara County, California, USA
March 22, 2008
Size: 2mm
Found on the edge of a lily pad. Most likely a parasitic wasp. I've encountered a fairly similar one before, though that one had large dark spots on the wings. Also, the antennas seemed to have more sections, and no major filaments.
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Contributed by Arthur Scott Macmillan on 24 March, 2008 - 7:44pm
Last updated 25 March, 2008 - 1:00am

Eurytomidae (Chalcidoidea) - male
A typical member of this small family, maybe genu Eurytoma itself. Some - but not all- of these are among the few Chalcid Wasps with a phytophagous (seed-eater), rather than parasitoid, larval diet.
… Richard Vernier, 24 March, 2008 - 8:49pm login or register to post comments

 
Thank you, for the information Richard-
I was surprised by the amount of filaments on the antennas, is this found on the male and females of this type of wasp? Maybe I can save you the trouble. You have referred to differences in the antennas, and the shape of the gaster of a very similar specimen. The gaster appears longer and more pointed in the small number of pictures of females that I have seen.
… Arthur Scott Macmillan, 25 March, 2008 - 12:43am login or register to post comments

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