Diptera.info :: Identification queries :: Diptera (adults)
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 Parasitoid sarcophagid (I think)
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| Rui Andrade |
Posted on 21-02-2008 12:56
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 Member Location: Portugal Posts: 3122 Joined: 19.06.07 |
My brother, some 3 or 4 years ago, found a partially crushed cockroach (maybe Blatta orientalis) in Barcelos, Portugal and gave it to me. When it died I kept it in a box. Several months later I found, in the box, many flies like the one you see in the pictures below. I think it's a sarcophagid, can anyone provide some insight about the species?   |
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| Zeegers |
Posted on 21-02-2008 18:50
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Member Location: Soest, NL Posts: 18833 Joined: 21.07.04 |
Yes, it is Sarcophagidae, Sarcophaga s.l. Not parasitic. The larvae must have entered the roach after its death. I know, the box was closed, but larvae are small and mobile. Theo |
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| Rui Andrade |
Posted on 21-02-2008 20:52
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Member Location: Portugal Posts: 3122 Joined: 19.06.07 |
Well, this was a surprise to me, I really thought they were parasitoids .Thank you for helping me Theo  . |
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| Tony Irwin |
Posted on 21-02-2008 21:54
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 Member Location: Norwich, England Posts: 7238 Joined: 19.11.04 |
If the cockroach was partially crushed, it may have been open to attack by a Sarcophaga - some species are known to invade moirbund snails, for instance, and even to cause myiasis in humans. In this sense, it could have been a faculative parasitoid, but Theo is correct that they are not normally parasitoids of arthropods.
Tony ---------- Tony Irwin |
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| Rui Andrade |
Posted on 21-02-2008 22:15
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Member Location: Portugal Posts: 3122 Joined: 19.06.07 |
Thank you for your intervention Tony. |
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