Diptera.info

Posted by Robert Heemskerk on 28-11-2007 13:47

hi flyforum,

Yesterday I found this fly in swampy reetland in the Amsterdam forest.
size ~8-9mm
It got different coloured eyes :o
I think it is a Heleomyzidae sp., and with it's dark veins perhabs Suillia?

suggestions are welcome :)

Posted by Robert Heemskerk on 28-11-2007 22:45

Thank you Andrzej

''The postvertical setae are divergent'', it took me some time but I think I found them B)

I have illustrate them with some arrows. (I am right?)

It is not Heleomyzidae?, what kind of fly could it be else? :|

Edited by Robert Heemskerk on 28-11-2007 22:46

Posted by Sundew on 28-11-2007 23:00

In a former thread Kahis wrote about Suillia:

The five dorsocentral setae (per row) is a good character for this genus: 1 before the suture and 4 behind.

I see only 4 setae in one row...
Here my wisdom ends!;)
Regards, Sundew

Posted by Robert Heemskerk on 29-11-2007 12:40

Hi Kahis,

I cannot find Eurygnathomyia sp. in the dutch specieslist.

Under Pallopteridae I find 9 Palloptera sp.:
1. ambusta
2. modesta
3. muliebris
4. quinquemaculata
5. saltuum
6. trimacula
7. umbellatarum
8. usta
9. ustulata

Eurygnathomyia sp. got preapical bristles, Palloptera does not(that's what I read..)
Maybe it is not possible to check these from these details, but next to the apical bristles I don't see 'the preapicals' (maybe you don't see them because they are behind te legs on the picture) But I give them a try..

Edited by Robert Heemskerk on 29-11-2007 12:41

Posted by jhstuke on 29-11-2007 14:49

#10

It could be Palloptera scutellata - just recently added to the dutch list. It could be a male and if it is a male it would be an interesting record because there have been only females been recorded in the Netherlands and in Germany before.

Jens-Hermann

Posted by Robert Heemskerk on 30-11-2007 11:49

#11

That would be great! ;)

It would be nice if someone could confirm this or help me any further, if possible..
I don't have keys for determination for these species.

Looking to Palloptera-species in the diptera Gallery(checking the obvious wingpatterns) and to the time in the year when these flies are active, two species I cannot check: P. ambusta and P. modesta.

Edited by Robert Heemskerk on 30-11-2007 12:28

Posted by kitenet on 30-11-2007 22:41

#13

Under Pallopteridae I find 9 Palloptera sp.:
1. ambusta
2. modesta
3. muliebris
4. quinquemaculata
5. saltuum
6. trimacula
7. umbellatarum
8. usta
9. ustulata

The key to the British Pallopteridae (by Alan Stubbs, 1994, revised by David Clements, 1999) includes all the above species plus anderssoni, bicolor, laetabilis and scutellata. This specimen keys out to scutellata :), which is the only member of the genus (in Britain) with the combination of unmarked wing apex plus greyish marks elsewhere on the wing.

Martin

Posted by Robert Heemskerk on 30-11-2007 22:56

#14

Wow! :o , that's nice

I've read that the fly was catched in 2003, and also in 2004 and 2005. And only females where found?! (http://library.wur.nl/WebQuery/gkn/lang/1845147)

Is the differerence between male and female visible from these pictures?

Posted by Jan Willem on 25-02-2008 18:06

#15

A rather late response, but it looks like a male specimen to me. I hope John will also have a look and will give his opinion.

Posted by John Smit on 25-02-2008 19:47

#16

Hi all,

Definitely P. scutellata!
And yes, it seems to be the first male! Congratulations Robert!
Do you perhaps have the exact locallity and further details for the Database, please?!

John

Posted by Robert Heemskerk on 01-03-2008 12:34

#17

Hi John,

You can find the precize co?rdinates and data on:

http://waarneming...id=3256922

If you need anything further, ask me.
Maybe I can help

Edited by Robert Heemskerk on 01-03-2008 12:35