Thread subject: Diptera.info :: Drosophilidae ?

Posted by ole on 04-01-2013 18:11
#1

Yesterday at the coast in dense grass & herbs.
aprox 5mm.
Thanks,
Ole

Edited by ole on 04-01-2013 18:12

Posted by Tony Irwin on 04-01-2013 21:24
#2

Looks very like Scaptomyza graminum

Posted by ole on 04-01-2013 22:08
#3

Thank you very much, Tony!
Greetings Ole

Posted by ole on 04-01-2013 22:45
#4

Hello again Tony.
All the pictures I see of Scaptomyza graminum shows gray Scutum with narrow dark center stripe.
This is reddish brown with broad diffuse center stripe - it's just variation or ...?

Posted by Tony Irwin on 05-01-2013 01:24
#5

The photos don't show all the key characters. However, it's got four rows of acrostichals and the apical scutellars are shorter than the laterals, so I'd still go with graminum, but it would be good to get an expert's opinion. Paul?

Posted by Paul Beuk on 05-01-2013 21:14
#6

A proper lateral view would reveal a lot...

Posted by ole on 08-01-2013 20:29
#7

Hi Paul
I´ll remember "next time"....
Thank you!
Greetings, Ole

Posted by Paul Beuk on 09-01-2013 11:32
#8

Perhaps Hirtodrosophila cameraria...

Posted by ole on 09-01-2013 22:04
#9

Thanks again. Paul:)
I Keep it as cf Hirtodrosophila cameraria then.

Greetings Ole

Posted by djo on 11-01-2013 10:01
#10

Sorry, not Hirtodrosophila cameraria. From memory, I think 4 rows of acrostichal setulae would be wrong. However, 2 ventral branches on the arista and the presence of a pre-apical bristle on the mid leg is certainly wrong. Also the overall 'feel' of it is not Cameraria (too narrow / lightly built)

I would certainly go with Scaptomyza (which I don't know well, but probably not pallida). Apparently anterior dorsocentral closer to suture than to posterior dorsocentral and only 2 katepisternal setae would confirm scaptomyza.

Another possibility might be Lordiphosa (4 rows acrostical setulae), but again katepisternals would need to be seen

Posted by ole on 11-01-2013 13:42
#11

Thanks alot, Darren!
From this I learn always to take a lateral pict!
Drosophilidae indet. is the only thing I´m sure of now :D

Greetings, Ole

Edited by ole on 11-01-2013 13:43