Diptera.info :: Identification queries :: Diptera (adults)
 Phasia sp. to ID
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| Rui Andrade |
Posted on 16-05-2008 18:58
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 Member Location: Portugal Posts: 3123 Joined: 19.06.07 |
I found this Phasia sp. in Vila Nova de Gaia, Portugal on the 2nd of May. Is it possible to tell the species name?   |
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| ChrisR |
Posted on 16-05-2008 19:42
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 Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04 |
If it was in northern Europe I might say Phasia obesa (from the pale hairs on the gena) but how large is this fly? |
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| Rui Andrade |
Posted on 16-05-2008 19:52
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Member Location: Portugal Posts: 3123 Joined: 19.06.07 |
Hi Chris, This is a really big Phasia, around 7-8 mm. |
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| Rui Andrade |
Posted on 16-05-2008 19:55
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Member Location: Portugal Posts: 3123 Joined: 19.06.07 |
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)? |
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| Zeegers |
Posted on 16-05-2008 20:00
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Member Location: Soest, NL Posts: 19267 Joined: 21.07.04 |
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 |
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| Rui Andrade |
Posted on 16-05-2008 20:37
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Member Location: Portugal Posts: 3123 Joined: 19.06.07 |
Thanks Theo. Maybe if I add a more zoomed photo it will help:  |
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| ChrisR |
Posted on 16-05-2008 21:59
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Super Administrator Location: Reading, England Posts: 7706 Joined: 12.07.04 |
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  ... I have never seen subcoleoptrata though You guys in southern Europe are very lucky - such interesting phasiines AND you have an earlier season! Here I have only seen Gymnocheta viridis and Phasia hemiptera (first brood).
Edited by ChrisR on 16-05-2008 22:03 |
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| Rui Andrade |
Posted on 16-05-2008 22:13
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Member Location: Portugal Posts: 3123 Joined: 19.06.07 |
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  . |
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| Zeegers |
Posted on 17-05-2008 15:11
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Member Location: Soest, NL Posts: 19267 Joined: 21.07.04 |
The close-up doesn't help, wrong angle, need a short from above Theo |
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| Rui Andrade |
Posted on 17-05-2008 15:47
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Member Location: Portugal Posts: 3123 Joined: 19.06.07 |
Ok, next try . Maybe the red arrows are pointing to two rows of bristles? |
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| Zeegers |
Posted on 17-05-2008 19:37
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Member Location: Soest, NL Posts: 19267 Joined: 21.07.04 |
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 |
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| Rui Andrade |
Posted on 19-05-2008 20:46
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Member Location: Portugal Posts: 3123 Joined: 19.06.07 |
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? |
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| Zeegers |
Posted on 19-05-2008 20:54
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Member Location: Soest, NL Posts: 19267 Joined: 21.07.04 |
Look at the genitalia. If there is a large hole in the ovipositor in ventral view, it's subcoleoptrata Theo |
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| Rui Andrade |
Posted on 21-05-2008 17:06
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Member Location: Portugal Posts: 3123 Joined: 19.06.07 |
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.  |
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