Thread subject: Diptera.info :: Phasia sp. to ID
Posted by Rui Andrade on 16-05-2008 18:58
#1
I found this Phasia sp. in Vila Nova de Gaia, Portugal on the 2nd of May. Is it possible to tell the species name?
Posted by ChrisR on 16-05-2008 19:42
#2
If it was in northern Europe I might say
Phasia obesa (from the pale hairs on the gena) but how large is this fly?
Posted by Rui Andrade on 16-05-2008 19:52
#3
Hi Chris,
This is a really big Phasia, around 7-8 mm.
Posted by Rui Andrade on 16-05-2008 19:55
#4
I collected the specimen, but I just reallised that it has been affected by fungi:(. Does it still have some utility (fungi is mainly on the head)?
Posted by Zeegers on 16-05-2008 20:00
#5
I don't know
There seems to be only one row of bristles on the parafrontalia, but the picture can be misleading. If there is only one, this is Ph. subcoleoptrata, apparently a female, which has a very specific genital.
Otherwise, and first impression on habitus confirms that, it looks more like the female of Ph. aurigera. NOte the reddish lateral spots on the abdomen.
Theo
Posted by Rui Andrade on 16-05-2008 20:37
#6
Thanks Theo.
Maybe if I add a more zoomed photo it will help:
Posted by ChrisR on 16-05-2008 21:59
#7
I agree, if it is a large one then it has to be something like
aurigera ... I wasn't sure if the orange spots were real or if I was imagining them :D ... I have never seen
subcoleoptrata though :(
You guys in southern Europe are very lucky - such interesting phasiines AND you have an earlier season! :D Here I have only seen
Gymnocheta viridis and
Phasia hemiptera (first brood).
Edited by ChrisR on 16-05-2008 22:03
Posted by Rui Andrade on 16-05-2008 22:13
#8
Thanks Chris!
Yes, it really is nice to live in a warm country, pity it's been always raining for the last bunch of days:@.
Posted by Zeegers on 17-05-2008 15:11
#9
The close-up doesn't help, wrong angle, need a short from above
Theo
Posted by Rui Andrade on 17-05-2008 15:47
#10
Ok, next try:). Maybe the red arrows are pointing to two rows of bristles?
Posted by Zeegers on 17-05-2008 19:37
#11
It's just the outer arrows.
The left side looks different than the right, left I see 1 row and right more. So are left any bristles broken ?
Theo
Posted by Rui Andrade on 19-05-2008 20:46
#12
I really can't see two rows on the right side :-s, though I noticed there are more bristles on the right. So, if in the right we have two rows is it P. aurigera the only option?
Posted by Zeegers on 19-05-2008 20:54
#13
Look at the genitalia.
If there is a large hole in the ovipositor in ventral view, it's subcoleoptrata
Theo
Posted by Rui Andrade on 21-05-2008 17:06
#14
Now that I'm seeing it zoomed up, I noticed that the fly is much more affected by fungi than what I was thinking:(.
I don't know if this photo is ventral enough for the purpose.
