Thread subject: Diptera.info :: Tachinidae in the Alps 6
Posted by christoophe on 11-11-2010 11:07
#1
Hello
Collected 23 08 10, size 12 mm.
I find Linnaemya haemorrhoidalis.
pic1
Posted by christoophe on 11-11-2010 11:08
#2
pic2
Posted by christoophe on 11-11-2010 11:08
#3
pic3
Posted by christoophe on 11-11-2010 11:09
#4
pic4
Posted by ChrisR on 11-11-2010 11:23
#5
Good photos but I will pass and let Theo comment on this one because they are a difficult group. Having the specimen in the hand to manipulate and view the back of the head from slightly different angles is quite invaluable ... the black bristles on the back are very confusing unless you have both examples (positive & negative) to compare it with. Basically both couplet options will have small bristles on the back of the head but some have a few larger bristles mixed with them. :)
Posted by Zeegers on 11-11-2010 20:44
#6
Let us first establish whether the hairs on sternite 1 are white or black .... ?
Theo
Posted by christoophe on 11-11-2010 21:42
#7
They are whitish.
Posted by christoophe on 12-11-2010 06:42
#8
Not easy with the light LED, many reflections.
I verified, they are very short and dark.
Posted by Zeegers on 12-11-2010 11:45
#9
It seems to be consistent with haemorrhodalis.
I can't be sure from pics only
Theo