Thread subject: Diptera.info :: Trixoscelis canescens, Heleomyzidae

Posted by JariF on 10-07-2009 18:20
#1

Hi,

is this small fly maybe member of Heleomyzidae and Trixoscelis ? July 10.2009 Loviisa, Finland.

Jari

Edited by JariF on 11-07-2009 19:07

Posted by jorgemotalmeida on 10-07-2009 18:27
#2

I'd say Trixoscelididae

Posted by JariF on 10-07-2009 18:42
#3

Thank's Jorge. Are they Trixoscelididae nowdays ? In our list they belong to Heleomyzidae.

Jari

Posted by jorgemotalmeida on 10-07-2009 18:45
#4

yes, Jarif. There is Trixoscelididae by itself. It was traditionally in Heleomyzidae before.

Edited by jorgemotalmeida on 10-07-2009 18:45

Posted by JariF on 10-07-2009 18:48
#5

Thank You again.

Jari

Posted by KWQ on 11-07-2009 04:46
#6

I think this species is Trixoscelis frontalis or at least that is where I have ended up with the specimens with black fore legs here in southern Finland.

Posted by JariF on 11-07-2009 05:18
#7

Thank You and wellcome finally to the Diptera.info Kaj ;)

Jari

Posted by KWQ on 11-07-2009 05:28
#8

Thanks, Jari! About time to try to finally activate myself after 5 years of laziness here... See you!

Posted by Andrzej on 11-07-2009 18:21
#9

Nice shot !
There is the female of Trixoscelis canescens with typical middle dark stripe at the dorsal part of abdomen :)

Posted by JariF on 11-07-2009 19:06
#10

Thank's Andrzej :)

Jari

EDIT: Last summer I had some of these too and then we came to name cf. canescens. If this is canescens it would be new to Finland again. Would You like to see the specimen maybe or is the id clear from the picture ?

Edited by JariF on 11-07-2009 19:24

Posted by KWQ on 12-07-2009 07:50
#11

At least in Hackman's Ent. Scand. revision (1970) the name canescens doesn't occur at all, and it is also absent in our draft national check list.

But on the other hand it does occur in Bei-Bienko.

Right now I haven't got any references to clear out the potential synonymies in Trixoscelis but I have a vague remembrance that I once tried to introduce canescens to the Finnish fauna, but without success.

Posted by JariF on 12-07-2009 08:05
#12

I got mail from Andrzej and there are pictures coming to help determination. Here it seems to be valid http://www.faunaeur.org/full_results.php?id=66632

Jari

Posted by KWQ on 12-07-2009 09:13
#13

Ok, in that case it's time to congratulate!?

I would be very interested in any further information how to differentiate frontalis and canescens, if they really represent two distinct species and are not synonyms like Hackman (1970) presumed.