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Diptera.info :: Identification queries :: Diptera (adults)
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Can't trust Philipomyia species IDs
rafael_carbonell
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Posted on 15-07-2018 14:52
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I am trying to clarify the limits between both species, P. aprica and P. graeca and have nothing clear.

Following Krcmar et al (2011) Horse flies key of Croatia who is based on Chvála et al. (1972) and also Portillo-Rubio (2002) Fauna Iberica Tabanidae Key, they use, for instance some characteristics which I found really ambiguous:
- Antenna: All antenna seen from both species are orange or pale brown in the basal segment and dark in the apical ones.
- Abdomen colour is brown with a black median line wihich is more or less narrow or wide.. I have not seen nothing written about a rate.

There are a few pictures of what I would call authentic P. graeca, with the tooth pointing really forwards and very narrow black line on abdomen:


Krcmar et al (2011) has some "good" graeca specimens:
rafael_carbonell attached the following image:


[8.98Kb]
Edited by rafael_carbonell on 15-07-2018 14:59
 
rafael_carbonell
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Posted on 15-07-2018 14:53
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Before female and now the male from Krcmar et al:
rafael_carbonell attached the following image:


[6.64Kb]
Edited by rafael_carbonell on 15-07-2018 14:57
 
rafael_carbonell
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Posted on 15-07-2018 14:54
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This one from this site from Gerard Pennards
rafael_carbonell attached the following image:


[11.27Kb]
 
rafael_carbonell
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Posted on 15-07-2018 14:58
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And a really pointing forward tooth (I don't know the source):
rafael_carbonell attached the following image:


[12.53Kb]
 
Zeegers
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Posted on 21-07-2018 19:24
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Last one seems 'clearly' aprica.

Difference is difficult to formulate exactly and Leclercq indeed considered bith forms conspecific. Graeca is much more golden, antenna nearly completely orange in in lateral view antenna segment 3 much broader. All relztive to aprica.
Moreover, both species hardly (if ever) overlap in distribution: aprica is in the mountians, graeca much more confined to warm lowlands.
For instance: any Philipomyia from Asturias is bound to be aprica.

Theo
 
rafael_carbonell
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Posted on 21-07-2018 21:44
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3rd antennal segment with large pointed dorsal tooth, directed forward, orange-yellow in color. (graeca)
rafael_carbonell attached the following image:


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rafael_carbonell
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Posted on 21-07-2018 21:44
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3rd antennal segment is dark reddish-brown with small rectangular dorsal tooth, not directly directed forward. (aprica)
rafael_carbonell attached the following image:


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rafael_carbonell
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Posted on 21-07-2018 21:47
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And this picture I was asked to name, it made me think...

What's your opinion?
Thanks
rafael_carbonell attached the following image:


[187.27Kb]
Edited by rafael_carbonell on 21-07-2018 21:49
 
Zeegers
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Posted on 22-07-2018 07:43
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Definitely aprica, no doubt. Much too dark for graeca.
note that it is a male. In males antennae are more slender, and therefore the dorsal tooth is relatively more prominent. So compare males only with males !

Theo
 
rafael_carbonell
#10 Print Post
Posted on 25-01-2023 19:42
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Ok
 
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