Diptera.info :: Identification queries :: Other insects, spiders, etc.
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 spider with parasitic larva
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| Sundew |
Posted on 02-08-2008 22:56
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 Member Location: Berlin and Baden-Württemberg, Germany Posts: 3890 Joined: 28.07.07 |
Hi, Yesterday I saw this young Araneus diadematus spider in my garden. I took a photograph because of its nice colours and then noticed a yellow "swelling" on the side of its abdomen that is obviously a larva. I know Pompilid wasps burying paralyzed spiders with an added egg, but I did not know that unburied lively spiders can be attacked by parasitic larvae. Which insects can be such parasites? Thanks for any information, Sundew Sundew attached the following image:  [134.05Kb] |
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| jorgemotalmeida |
Posted on 03-08-2008 00:39
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 Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
it is probably an Ichneumonoidea wasp. |
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| jorgemotalmeida |
Posted on 03-08-2008 00:47
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Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
Pompilidae wasps only paralyze them... and then they give the spider to their larvae... and the spider is ate alive (it is like a dead-alive)... Sphecidae wasps predate on spiders, for example. And Ichneumonoidea wasps parasite the spiders. In diptera, only the famous Acroceridae flies parasite them. Acrocerids are really true ENDOparasitoids of spiders. |
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| ChrisR |
Posted on 03-08-2008 14:08
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 Administrator Location: Reading, England Posts: 7699 Joined: 12.07.04 |
Reminds me of a polysphinctine pimplid larva, but the ones I have seen were always on the anterodorsal part of the abdomen. Nice photos  |
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but don't see the image in the post.