Diptera.info :: Identification queries :: Diptera (adults)
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 Scathophagidae > Scatophaga stercoraria
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| Raimo |
Posted on 30-11-2013 18:21
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Member Location: Karlstad, Sweden Posts: 1518 Joined: 10.11.13 |
Mid Sweden sept.
Raimo attached the following image:  [168.99Kb] Edited by Raimo on 28-02-2016 18:01 |
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| Juergen Peters |
Posted on 30-11-2013 18:49
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 Member Location: northwest Germany Posts: 13955 Joined: 11.09.04 |
Hi! Yes, female S. stercoraria. Best regards, Jürgen -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Juergen Peters Borgholzhausen, Germany WWW: http://insektenfo... -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
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| Raimo |
Posted on 30-11-2013 19:19
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Member Location: Karlstad, Sweden Posts: 1518 Joined: 10.11.13 |
Thankyou Juergen. |
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| Tony Irwin |
Posted on 30-11-2013 19:38
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 Member Location: Norwich, England Posts: 7236 Joined: 19.11.04 |
I'd say a male, or at least intersex - that's not a female abdomen. It's also got lots of fine pale hairs. Male stercoraria can sometimes be the same colour as females, and intersexes and "incomplete" males are not that uncommon.
Tony ---------- Tony Irwin |
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| Raimo |
Posted on 30-11-2013 20:03
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Member Location: Karlstad, Sweden Posts: 1518 Joined: 10.11.13 |
Does that mean intersex body traits but one functional sex? |
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| Tony Irwin |
Posted on 30-11-2013 20:40
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Member Location: Norwich, England Posts: 7236 Joined: 19.11.04 |
Both - I've seen some very "female" males that appeared to be fully functional (in terms of genital morphology), but there are males which apparently have no gonads (or reduced gonads), and genitalia which are indeterminate, or at least so different that they appear to belong to a different species. Quite a bit has been written on the subject.
Tony ---------- Tony Irwin |
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| Raimo |
Posted on 30-11-2013 21:41
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Member Location: Karlstad, Sweden Posts: 1518 Joined: 10.11.13 |
Any tip of a Review paper?
Edited by Raimo on 30-11-2013 21:42 |
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| Tony Irwin |
Posted on 30-11-2013 23:18
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Member Location: Norwich, England Posts: 7236 Joined: 19.11.04 |
There was a paper by Geoff Parker in 1969 - Transactions of the Royal Entomological Society of London 121(8): 305-323 "The reproductive behaviour and nature of sexual selection in Scatophaga stercoraria (Diptera: Scatophagidae) - III Apparent intersex individuals and their evolutionary cost to normal, searching males".
Tony ---------- Tony Irwin |
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| Raimo |
Posted on 02-12-2013 09:34
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Member Location: Karlstad, Sweden Posts: 1518 Joined: 10.11.13 |
Thanks, I start from there. |
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