Thread subject: Diptera.info :: Ephydridae, Ephydra macellaria macellaria, northern Norway
Posted by Geir79 on 31-03-2012 13:41
#1
Is it possible to tell which genus or species this is?
Seems like it's abundant around small pounds of water, especially the ones close to the sea (which contains seawater, intertidal pools). Size is approx. 4-5 mm.
Photographed in Bodø, northern Norway, 30.03.12.
Edited by Geir79 on 02-04-2012 18:13
Posted by Geir79 on 31-03-2012 13:41
#2
Second:
Posted by Geir79 on 31-03-2012 13:42
#3
Third:
Posted by Geir79 on 31-03-2012 13:49
#4
Think it looks very similar to Ephydra riparia in the gallery, but I don't know how the other species in the genus looks like...
Edited by Geir79 on 31-03-2012 13:50
Posted by Geir79 on 01-04-2012 15:47
#5
Read in another thread here at the forum, it seems it's only possible to identify these by the male genitalia.
Is it a male? I don't have much experience with detailed examinations of insects... Only have ONE specimen.
Posted by Geir79 on 01-04-2012 18:32
#6
Photo of genitalia (from above). It does not look like E. riparia in this thread: http://www.diptera.info/forum/viewthread.php?forum_id=5&thread_id=33779
What else could it be? Maybe I took the photo from the wrong angle...
Posted by Geir79 on 01-04-2012 19:17
#7
And another photo, of the dorsal thorax (guess numbers of setae is important). This one seems to have 4 rows of ac before suture, does that mean it could be riparia afterall? Read this too on the forum...
Riparia and macellaria are the two species in genus Ephydra known from Norway it seems.
I think this is riparia, the genitalia match (I've taken another look at previous post on this forum and my specimen).
Edited by Geir79 on 01-04-2012 23:15
Posted by Tony Irwin on 02-04-2012 10:49
#8
I'd guess
macellaria or
scholtzi from the photos.
Edited by Tony Irwin on 02-04-2012 10:53
Posted by Geir79 on 02-04-2012 11:59
#9
Is there any way to determine the species (scholtzi has not yet been found in Norway, if Fauna Europaea is updated).
I've only found photos of riparia on Diptera.info (and none of the others, can't find anything on the internet on scholtzi and macellaria).
Posted by Cranefly on 02-04-2012 17:52
#10
If I am not mistaken to see 4 rows of ac setae E.scholtzi is excluded. Surstyli straight, not curved inside - E.macellaria. According to Wirth, 1975 - thorax greenish-brown, not whitish-grey - it is then Ephydra macellaria macellaria Egger. (the second subspecies macellaria alandica Frey):)
Posted by Geir79 on 02-04-2012 18:12
#11
Thank you very much for ID! I really could not get anywhere with this one myself. It has 4 rows of ac setae.