Braconidae

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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) » Braconinae

Photo#45423

Copyright © 2006 Matthew Ireland

Braconidae -

Guelph, Ontario, Canada
March 20, 2006
Size: 3/4"-1"

I found several oval shaped "cocoons" underneath Beech tree bark and brought them home to see what emerged. This species of wasp emerged from all of them suggesting either that the wasp is very good at parasitizing another insect or that the cocoons are in fact made by the wasp. If anyone knows otherwise please let me know.

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Contributed by Matthew Ireland on 21 March, 2006 - 7:07am
Last updated 15 December, 2009 - 4:17pm

Braconinae -- Paul Marsh det.

Moved from Braconid Wasps.

… v belov, 15 December, 2009 - 4:17pm

Braconid Wasp (Braconidae)

Caution with wing venation: that of left forewing is visible enough on this picture to rule out any Ichneumonidae, despite fairly respectable size (even if ovipositor is included).
I would rather guess that each wasp larva spun its own cocoon, either made of pure silk or mixed with wood-dust, after leaving their dead or dying common host. For most Braconids are multiple (technically said "gregarious") rather than solitary parasitoids. By the way, were all emerging wasps you got females, or were both sexes present?

… Richard Vernier, 21 March, 2006 - 9:34am

Excellent

Thanks for the correction. Both sexes were present, one emerged per cocoon.

… Matthew Ireland, 21 March, 2006 - 10:26am

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