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 Tachinidae: Gymnosoma nudifrons or rotundatum?
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| Juergen Peters |
Posted on 05-05-2007 15:47
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 Member Location: northwest Germany Posts: 13920 Joined: 11.09.04 |
Hallo, allerseits! Is it possible to distinguish between the species after these photos? Taken yesterday in Ostwestfalen/Germany. Thanks in advance! Juergen Peters attached the following image:  [38.34Kb] Best regards, Jürgen -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Juergen Peters Borgholzhausen, Germany WWW: http://insektenfo... -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
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| Juergen Peters |
Posted on 05-05-2007 15:48
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Member Location: northwest Germany Posts: 13920 Joined: 11.09.04 |
Another picture.
Juergen Peters attached the following image:  [29.14Kb] Best regards, Jürgen -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Juergen Peters Borgholzhausen, Germany WWW: http://insektenfo... -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
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| Zeegers |
Posted on 06-05-2007 12:08
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Member Location: Soest, NL Posts: 18791 Joined: 21.07.04 |
It's definitely NOT nudifrons and I very much doubt whether this is rotundatum. dolycoridis or clavatum seem more likely. Theo |
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| Juergen Peters |
Posted on 06-05-2007 20:02
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Member Location: northwest Germany Posts: 13920 Joined: 11.09.04 |
Hello. Theo! Zeegers wrote: It's definitely NOT nudifrons and I very much doubt whether this is rotundatum. dolycoridis or clavatum seem more likely. Many thanks! I only had (as far as they could be identified) nudifrons here, yet, and did not know the other two species mentioned by you. Best regards, Jürgen -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Juergen Peters Borgholzhausen, Germany WWW: http://insektenfo... -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
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| Juergen Peters |
Posted on 06-05-2007 20:13
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Member Location: northwest Germany Posts: 13920 Joined: 11.09.04 |
Hello, Theo! Zeegers wrote: dolycoridis or clavatum seem more likely. One additional question: does the name dolycoridis indicate, that it parasitizes Dolycoris baccarum? That would fit very well! We had a mass invasion of these Pentatomidae here in April, they swarmed like bees on the meadows. The species is never rare here, but I had never seen such an accumulation. Best regards, Jürgen -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Juergen Peters Borgholzhausen, Germany WWW: http://insektenfo... -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
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| Zeegers |
Posted on 06-05-2007 20:17
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Member Location: Soest, NL Posts: 18791 Joined: 21.07.04 |
It has been said many times, Gymnosoma are very pretty but very hard to ID from pictures. Dolycoridis does indeed refer to Dolycoris. Whether this species is monophagous, is another question. Gymnosoma are difficult to rear, parasitazition rates are low (1 - 4 %) Theo Zeegers |
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| Juergen Peters |
Posted on 07-05-2007 23:37
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Member Location: northwest Germany Posts: 13920 Joined: 11.09.04 |
Hello! On sunday I got this one. Female of the same species? (1200x1200, 82 KB) http://www.foto-u...idis_W.jpg Best regards, Jürgen -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Juergen Peters Borgholzhausen, Germany WWW: http://insektenfo... -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
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