Thread subject: Diptera.info :: Hymenopteran parasitoids of Phytomyza

Posted by Carnifex on 04-08-2019 22:50
#1

Hi,
I tried to raise Phytomyza aquilegiae (also to answer my question in this this thread myself, as nobody could help me out so far :)).
Was a little bit late in the year already I guess, so from all the leaves I checked I could only find one where nothing yet had hatched. I kept it for some days until I realized a hymenopteran pupa within the leaf, so I had no hopes of getting a fly out...
Eventually I spotted a tiny wasp in the glass where I kept the leaf, but upon opening saw an even smaller second one.

Questions I have:
- which family/families do they belong to (Eulophidae? Trichogrammatidae?)
- did they both develop in flies or could one be a hyperparasite?
- is there a person known studying these kinds of wasps?

inaturalist-open-data.s3.amazonaws.com/photos/47164602/large.jpeg
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inaturalist-open-data.s3.amazonaws.com/photos/47164590/large.jpg
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inaturalist-open-data.s3.amazonaws.com/photos/47164635/large.jpg

Edited by Carnifex on 20-11-2022 22:24

Posted by Dmitry Gavryushin on 05-08-2019 09:47
#2

Stegmaier, 1972 (Parasitic Hymenoptera Bred from the Family Agromyzidae (Diptera) with Special Reference to South Florida - The Florida Entomologist, 55(4): 273-282) cites the following Eulophidae for Ph. aquilegia: Closterocerus tricinctus, Derostenus variipes, Zagrammosoma multilineatum

Posted by Carnifex on 05-08-2019 10:23
#3

Thanks Dmitry. Not sure if those Florida species have a holarctic distribution. In addition, UKflymines lists the following species:

Chrysocharis amyite (Walker, 1839) Eulophidae: Entedoninae
Chrysocharis orbicularis (Nees, 1834) Eulophidae: Entedoninae
Chrysocharis pentheus (Walker, 1839) Eulophidae: Entedoninae
Closterocerus trifasciatus Westwood, 1833 Eulophidae: Entedoninae
Neochrysocharis formosus (Westwood, 1833) Eulophidae: Entedoninae

However, it is hard to get trustworthy and reliable images of these species, to begin with. And then, there is still a high risk of confusion.
I will keep the specimens, in case I will find s.o. interested in them :)