Thread subject: Diptera.info :: Well, two for today: Trichocera rufescens ? -> T. cf saltator

Posted by pjoris on 19-01-2011 23:28
#1

I'm sure I'll get the hang of these next week, but this week I need help ... T. rufescences maybe ?

waarnemingen.be/fotonew/2/1801742.jpg
waarnemingen.be/fotonew/3/1801743.jpg
waarnemingen.be/fotonew/5/1801745.jpg

Edited by pjoris on 24-01-2011 16:34

Posted by Jason G on 19-01-2011 23:38
#2

I don't think it's rufescens; the curve should be notably more hooked for that one.

Is the body when dry blackish or brownish? I suppose I should ask how it compares in size to major/rufulenta too.

Posted by pjoris on 19-01-2011 23:50
#3

It's quite a big one, but not major size. I actually had it first down as major. Haven't looked at it dry yet, but it immediately seemed fairly brownish (but this is a 2 year old malaise trap ex) - the hiemalis in the same tube was however definitely much darker (and smaller).

Posted by Andrius on 20-01-2011 09:56
#4

Hmm... this one is trickier. Form of the ovipositor suggests T.pappi, but this species is known from Poland, Sweden and Hungary, so doubtful. It could also be not very typical saltator, or something else at all - inner genital structures could help to say more. Could you also make a close up of antena?

Posted by pjoris on 20-01-2011 22:16
#5

Here are the antenae, no setae on the pleuron, about 7mm long.
waarnemingen.be/fotonew/6/1803416.jpg

Posted by Andrius on 23-01-2011 20:26
#6

I would stay with Trichocera cf. saltator for now

Posted by pjoris on 24-01-2011 16:32
#7

I settled for saltator for most of my specimens now. It appears the most common species around here at this time of the year. Thanks, Joris