Thread subject: Diptera.info :: Ephydridae: Scatella tenuicosta

Posted by Stephen R on 09-10-2010 20:58
#1

2.5mm, Clitheroe UK, 9 October.

Is this Scatella tenuicosta?

Edited by Stephen R on 10-10-2010 19:41

Posted by Stephen R on 09-10-2010 20:59
#2

2

Posted by Tony Irwin on 10-10-2010 18:34
#3

Yep. no doubt.

Posted by Stephen R on 10-10-2010 19:40
#4

Thanks Tony.

Posted by jonas on 17-10-2010 20:03
#5

Hi,
I found some similar Ephydridae today - on a brackish pool, walking on water :-) (for belgians - op de spuikom)

Are there similar species?
Thank you!
Jonas

Posted by Tony Irwin on 18-10-2010 20:58
#6

Yes, there are a number of similar species - tenuicosta and stagnalis are the most frequently found on freshwater, but they both occur in brackish situations, along with paludum, subgutatta and others.

Posted by jonas on 19-10-2010 13:36
#7

Thanks Tony,
could you advise me some literature for keying out the genus Scatella?
Or I post some pictures :-)

Bye,Jonas

Posted by jonas on 19-10-2010 20:21
#8

Hi,
I checked my pictures.. The bristles on thorax are different, and wing markings are darker :-)

So:
1.bp.blogspot.com/_kOtb5kuwbKw/TL3uwsv7TQI/AAAAAAAAAqg/EPbQgrvcbP4/s1600/IMG_6787+copy.jpg

Crapy pic, I know ;)

BYe, Jonas

Posted by Tony Irwin on 19-10-2010 20:24
#9

Currently the best work is Olafsson's paper - see http://www.dipter...icle_id=18 under Ephydridae. I am preparing an account of the British fauna which will have a key to the North-West European species. It will take a bit of time as it includes what appears to be a new species from England.

Posted by Tony Irwin on 19-10-2010 20:29
#10

And your photo is also tenuicosta - some of the bristles on Stephen's specimen are not showing clearly.