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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Ants, Bees, Wasps and Sawflies (Hymenoptera) » "Parasitica" - Parasitoid Wasps » Braconid and Ichneumonid Wasps (Ichneumonoidea) » Braconid Wasps (Braconidae) » Doryctinae » Heterospilus » Heterospilus eurostae
Photo#275931
Goldenrod round gall parasitoid fauna - Heterospilus eurostae - female
Copyright © 2009 Beatriz Moisset

Goldenrod round gall parasitoid fauna - Heterospilus eurostae - Female
Horsham, Montgomery County, Pennsylvania, USA
May 16, 2009
Size: 3mm and 1.5mm
I collected a few dozen goldenrod galls last March to see what comes out of them. I have a handful of Eurosta solidaginis emerging on time with the growth of goldenrod. But what I was hoping to find is some of the parasites. Surprisingly, these ones are not the Euritoma parasites but something else. They are also considerably smaller than Eurosta. Could they be hyperparasites of Euritoma?
These females emerged from one of these goldenrod galls as well as some males:

Southeastern PA
Hymenoptera Braconidae Doryctinae representative

Images of this individual: tag all
Goldenrod round gall parasitoid fauna - Heterospilus eurostae - female Goldenrod round gall parasitoid - Heterospilus eurostae - female
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Contributed by Beatriz Moisset on 16 May, 2009 - 12:50pm
Last updated 31 December, 2018 - 4:38pm

Moved
Moved from Heterospilus.
… v belov, 9 December, 2009 - 2:53pm login or register to post comments

Moved
Moved from Doryctinae.
… v belov, 9 December, 2009 - 2:47pm login or register to post comments

Thank you
Moved from Braconid Wasps.
I just added a slightly better close up of the tiny one. Maybe it can be IDed to subfamily, too. It is certainly different from the others. Could it be a male Eurytoma gigantea? They are about the same size.
Update: It has been IDed as Eulophidae.
… Beatriz Moisset, 15 July, 2009 - 11:15am login or register to post comments

Doryctinae…
Regarding the two images in the top portion of this image, the black and orange coloration and short spines on the tibia indicate the subfamily Doryctinae. They are not hyperparasitoids. The bottom image may be a chalcid hyperparasite, but it's difficult to tell from only this inverted angle. At least two braconid subfamilies (Mesostoinae and Doryctinae) form galls on plants. They are mainly external primary parasitoids of beetle larvae, and about 75 genera exist, but so little is known about this group that other hosts (including flies) are certainly possible. Nice work and discoveries Beatriz.

See reference here.
… Ross Hill, 15 July, 2009 - 10:53am login or register to post comments

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