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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Ants, Bees, Wasps and Sawflies (Hymenoptera) » "Parasitica" - Parasitoid Wasps » Chalcidoid Wasps (Chalcidoidea) » Trichogrammatidae
Photo#557321
Eggs and Parasitic Wasp
Copyright © 2011 Karl Hillig

Eggs and Parasitic Wasp
Ballston Lake, Saratoga County, New York, USA
August 3, 2011
Size: < 1 mm
These eggs were on the underside of a ginko leaf. It appears that they are being parasitized by a minute orange wasp (or fly?). ID help for eggs and wasp appreciated.

Images of this individual: tag all
Eggs and Parasitic Wasp Parasitic Wasp - female Parasitic Wasp - female Parasitic Wasp - female
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Contributed by Karl Hillig on 4 August, 2011 - 9:05am
Last updated 7 August, 2011 - 10:09am

Moved
Moved from ID Request.
… Karl Hillig, 7 August, 2011 - 10:09am login or register to post comments

Trichogrammatid is correct…
Fits the description for this family. Among the smallest of insects, they are all egg parasitoids of many insect orders. Great (rarely seen) emergence image of a female.

See reference here.
… Ross Hill, 4 August, 2011 - 9:56am login or register to post comments

 
It looked more like
it was parasitizing the eggs than emerging from one, but it's so tiny that it was hard to tell.
… Karl Hillig, 4 August, 2011 - 10:12am login or register to post comments

Interesting eggs
Do you have a side view of them? They look flattened but it's hard to tell for sure from this angle. I would guess some kind of moth, but a true bug might not be out of the question. I doubt that it's something specific to ginkgo. The parasitoid looks like a trichogrammatid to me.
… Charley Eiseman, 4 August, 2011 - 9:25am login or register to post comments

 
I'll monitor the eggs
and see what hatches. I just measured them at about 0.7 mm, and they're more or less spherical. I haven't seen anything going after the ginko leaves.
… Karl Hillig, 4 August, 2011 - 10:02am login or register to post comments

 
I suspect the black ones will all produce wasps
But maybe they (she) missed a few. Egg parasitoids often hit every single egg in a cluster, but I did get a good number of both host larvae and trichogrammatids from a single alderfly egg mass (see here--haven't gotten around to posting them on BugGuide yet).
… Charley Eiseman, 4 August, 2011 - 10:07am login or register to post comments

 
Cool pics, Charley.
I'm debating whether to collect the leaf, or monitor it in the field.
… Karl Hillig, 4 August, 2011 - 10:16am login or register to post comments

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