Diptera.info

Posted by crex on 02-03-2008 14:00

Location: Midwest Sweden (Dalsland)
Date: 2007-AUG-03
Habitat: Garden

I tried to key it out, but I didn't even come to a conclusion as to what genus it is and I'm not gonna guess. Help, please!

Edited by crex on 02-03-2008 15:58

Posted by crex on 02-03-2008 18:21

E. latifasciatus should have the yellow spots of tergites 3-4 "anterior edge parallel with anterior edge of tergites". I'm not sure that is the case here!?

Edited by crex on 02-03-2008 18:24

Posted by viktor j nilsson on 02-03-2008 19:27

hi, this is my first post here so I should say hello to everybody!

to the syrphid in question I do not have an answer to its specific identity but would like to add that the large, rectangular dark spots on the sternites should exclude E. latifasciatus? and I think that I see two distinct dust spots on the frons in the last picture, which latifasciatus obviously doesn't have.

The sternite pattern is typical for E. nitens, but female E. nitens would have femur 3 entirely yellow and a much darker tergite 5, isn't that right?

Could this be E. bucculatus?

Posted by amalia_raluca on 02-03-2008 19:43

I vote for latifasciatus:
frons entirely shiny, half black, half yellow
tergite 5 with lateral margins yellow
the yellow bands of the tergits 3 and 4 reach the lateral margins
Amalia

Posted by Andre on 02-03-2008 20:16

#10

I see dusted frons. Another candidate is bucculatus, which also can have such yellow bands on the abdomen. This would also be more in line with Viktor's correct remark, about T5 being rather yellow.

Posted by Zeegers on 02-03-2008 22:04

#11

Sorry.
I missed the ventral picture (or was it there the first time ?)
The black markings clearly prove that Andre was right all along:
it is nitens.
Nitens and nielseni can have frons in female similar to latifasc., this fooled me. Bucculatus has different frons.

Theo

Posted by viktor j nilsson on 02-03-2008 22:35

#12

but still, i did not think nitens can have such a darkened femur 3 and yellow hind margin of T5! Zeegers, have you seen nitens showing these characters?

Posted by Andre on 02-03-2008 23:14

#13

Eupeodes is a very difficult, 'cause variable, genus. I wouldn't give this one a 100% certain ID.