Diptera.info

Posted by jorgemotalmeida on 30-08-2009 23:17

Spotted this beauty at more 1600 m.
It was in the highest point in Valdelinares...

Which this 3 mm phasiin could be?

thanks!

Edited by jorgemotalmeida on 05-09-2009 15:52

Posted by jorgemotalmeida on 30-08-2009 23:22

another...

Posted by jorgemotalmeida on 30-08-2009 23:25

another...

Posted by jorgemotalmeida on 30-08-2009 23:30

another...
bad photo. out of of focus.

Posted by jorgemotalmeida on 30-08-2009 23:37

another...

Edited by jorgemotalmeida on 30-08-2009 23:38

Posted by neprisikiski on 31-08-2009 11:19

Rondania dispar, I think

Edited by neprisikiski on 31-08-2009 11:24

Posted by jorgemotalmeida on 31-08-2009 11:45

that would make this as a male of Rondania dispar...

Posted by Zeegers on 31-08-2009 20:14

The abdominal pattern and length of stalk suggest to me a male of Graphogaster. Moreover, i think i see a hairlike third IA'bristle'.

Jorge can easily check this hypothesis:

prosternum hairy -> Graphogaster
prosternum bare -> Rondania

Posted by jorgemotalmeida on 31-08-2009 20:50

I used a small hand loupe and it seems bare the prosternum. I will try to take photos in this zone.

Posted by ChrisR on 31-08-2009 20:56

#10

Hmm, check very carefully ... it is very hard to see :p

Posted by jorgemotalmeida on 31-08-2009 20:59

#11

what is the approximate size of those hairs??

Posted by ChrisR on 31-08-2009 21:40

#12

Incredibly small - very tiny black hairs, often around the edge and can be just 1 hair :) and you are looking at the smallest piece of chitin between and infront of the front legs in the centre - almost under the 'chin'. :)

Posted by jorgemotalmeida on 31-08-2009 21:41

#13

i know where is it. But my doubt resides only in the lenght of the possible hairs. ;) ok.. I must seek carefully for any very small ~"hair".

Posted by ChrisR on 31-08-2009 22:44

#14

Yeah, they can be very small but should be clearly visible at about 40x magnification. :)

Posted by jorgemotalmeida on 01-09-2009 01:47

#15

Not clearly to see... really 40x magnification is needed.

Posted by neprisikiski on 01-09-2009 13:21

#16

It seems, that my hypothesis was better :D

Posted by jorgemotalmeida on 01-09-2009 16:41

#17

I will confirm this week the ID. I will have access to a stereomicroscope.. so I can see better the prosternum. :)

Posted by Zeegers on 02-09-2009 07:54

#18

HOw long is the stalk in the wing anyway ?
I just noticed we actually can't see on the pics.

Theo

Posted by jorgemotalmeida on 02-09-2009 10:12

#19

here a photo of the wings with m vein stalked...

Edited by jorgemotalmeida on 02-09-2009 10:13

Posted by Zeegers on 02-09-2009 19:03

#20

OK, not as long as I suspected. Erikas might be right.

Still, hairs on prosternum are decisive.

These are very long and obvious in Graphogaster

Theo

Posted by jorgemotalmeida on 02-09-2009 19:17

#21

at least with my hand loupe I don't see any conspicuous hairs in prosternum. Neither in the photo.. I will try with a stereomicroscope - still I do not have one.

Posted by Zeegers on 02-09-2009 20:51

#22

Well, sounds like Erikas is right.

Theo

Posted by jorgemotalmeida on 02-09-2009 20:52

#23

Thanks to all. I will put this as male Rondania dispar. :)

Posted by jorgemotalmeida on 02-09-2009 21:13

#24

photo taken by Andrade... it was told that this is a male of Rondania dispar... So I'm confused... this has no proclinate brisltes in the parafrontalia , also the distance form the eyes is bmuch bigger than my specimen...

Posted by jorgemotalmeida on 03-09-2009 09:54

#25

hmm.. doubts were cleared up. The above photo of Andrade is from a female and not a male. :) Curious to see some specimens of Andrade (where all are females) with proclinate brisltes in parafrontalia and others without them...

Posted by Zeegers on 05-09-2009 15:16

#26

Rui is in error, it is clearly a female

Theo