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Parasitoid Wasp? - Gonatocerus

Parasitoid Wasp? - Gonatocerus
Charleston County, South Carolina, USA
Size: 1mm
This minute wasp was taken in a yellow pan trap... it must be a parasitoid of some type. Is this a chalcid or a braconid?

Gonatocerus Mymaridae
It is probably Gonatocerus morrilli or a related species to G. morrilli.

Probably a Gonatocerus sp.

Moved from Mymaridae.

It looks identical to this Chalcid

It is a Mymaridae, but tooo shriveled to tell more than that. Best thing when you collect chalcids is to get them sooner than immediately(I prioritize getting the Chalcids first when sorting!) into alchohol and leave them there a few days to weeks. Then get some acetone(Home Depot) and get a large enough jar to place a index card in. Soak a paper towel in acetone and place in the large jar with cap on very tight. Take your specimen out of the alchohol carefully with fine tweezers and place on index card. add a couple of drops of alch. to card so specimen is in a small pool. Work fast!!! While in this pool and as the alch. evaporates/soaks into card, spread the wings to the upright position and if need-be place a small weight on them. Make sure specimen is not stuck to card when alch. is dry, but work quick to get the card in the jar. Leave for 12-24hrs in the acetone fumes. Acetone will replace the alch. soaked through the specimen. Now pull out card and place an incadescent light bulb a few inches from specimen. Acetone evaporates extremely quickly this way and the specimen stays virtually shrivel-free. Place on paper point at this time(acetone will melt the pinheads and ruin the glue if done first). Remember though that acetone is very much more flammable than gasoline, so you must be very careful with flame sources. Fumes can be explosively flammable. But I've had no trouble with this cheap way of mimicing "critical point drying"! Look at the difference in my specimen you cite above and the other Mymaridae I've posted. Works well with flies and some other softer insects that tend to shrivel when dried.

I've tried the method outlined above by Richard and it works quite well.

HMDS metod

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