Diptera.info :: Identification queries :: Diptera (adults)
 Heleomyzidae?
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| Juergen Peters |
Posted on 20-03-2006 21:18
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 Member Location: northwest Germany Posts: 14250 Joined: 11.09.04 |
Hello! These about 10 mm long flies were numerous on tree trunks today here in Ostwestfalen/Germany. My guess would be Tephrochlamys rufiventris. Is that correct? Thank you!  http://insektenin...tris_1.jpg http://insektenin...tris_4.jpg http://insektenin...tris_5.jpg  On the same trunks also some Muscidae (?). Maybe Phaonia? http://insektenin...nia_sp.jpg And on our house's wall a Pollenia? http://insektenin..._rudis.jpg BTW: Although it was quite cold (4-5 ?C, still much snow, see below) and windy today, I saw the first Syrphids standing still in the air at the wood's edge. One even landed on my jacket, but unfortunately did not allow me to take a pic. Must have been Eristalis tenax or pertinax males. http://insektenin..._Maerz.jpg Best regards, Jürgen -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Juergen Peters Borgholzhausen, Germany WWW: http://insektenfo... -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
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| Andrzej |
Posted on 21-03-2006 10:55
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Member Location: Poland Posts: 2419 Joined: 05.01.06 |
It could be a rufiventris species . Andrzej |
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| Juergen Peters |
Posted on 21-03-2006 17:53
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Member Location: northwest Germany Posts: 14250 Joined: 11.09.04 |
Hello, Andrzej! Andrzej wrote: It could be a rufiventris species . Do you mean a Tephrochlamys species? (In the checklist in "Entomofauna germanica" there are only two other: T. flavipes and T. tarsalis). Best regards, Jürgen -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Juergen Peters Borgholzhausen, Germany WWW: http://insektenfo... -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
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| Andrzej |
Posted on 22-03-2006 09:33
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Member Location: Poland Posts: 2419 Joined: 05.01.06 |
Of course. Please note that T. rufiventris is a common species known from Germany also !. Best Regards !. Andrzej |
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| Susan R Walter |
Posted on 22-03-2006 14:04
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 Member Location: Touraine du Sud, central France Posts: 1802 Joined: 14.01.06 |
Jurgen Phaonia - now well established on this forum as my favourites (not)  . Your pic shows a number of the characteristics of the ones I am getting here in Essex, so I think your ID is correct.Syrphids - I always get Eristalis tenax long before E pertinax. I don't know if that is generally the case in other areas though. Susan |
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| Juergen Peters |
Posted on 22-03-2006 18:21
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Member Location: northwest Germany Posts: 14250 Joined: 11.09.04 |
Hello, Andrzej! Andrzej wrote: Of course. Please note that T. rufiventris is a common species known from Germany also !. Yes, those flies are common here, but I did not see so many on one single day (several on every tree trunk in the sun). Best regards, Jürgen -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Juergen Peters Borgholzhausen, Germany WWW: http://insektenfo... -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
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| Juergen Peters |
Posted on 22-03-2006 18:26
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Member Location: northwest Germany Posts: 14250 Joined: 11.09.04 |
Hello, Susan! Susan R Walter wrote: Phaonia - now well established on this forum as my favourites (not) . Your pic shows a number of the characteristics of the ones I am getting here in Essex, so I think your ID is correct.Thanks for the confirmation! Syrphids - I always get Eristalis tenax long before E pertinax. I don't know if that is generally the case in other areas though. That is normally the same here. But I could not see the flies clearly, so I was not 100% sure. E. tenax seems to overwinter here (at least partly) as adults and so can be active much earlier than pertinax or other species. Best regards, Jürgen -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Juergen Peters Borgholzhausen, Germany WWW: http://insektenfo... -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= |
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