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Diptera.info :: Identification queries :: Diptera (adults)
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Bothria subalpina? - Bothria frontosa
Morten A Mjelde
#1 Print Post
Posted on 06-02-2017 22:18
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 South Norway
11. 04 - 2016
Open pine-forest
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Morten A Mjelde
#2 Print Post
Posted on 06-02-2017 22:19
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Morten A Mjelde
#3 Print Post
Posted on 06-02-2017 22:20
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Morten A Mjelde
#4 Print Post
Posted on 06-02-2017 22:20
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Zeegers
#5 Print Post
Posted on 06-02-2017 22:36
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 Indeed ! Nice call.
Pretty early record, for Norway.
You'd expect B. frontosa

Theo
 
Morten A Mjelde
#6 Print Post
Posted on 06-02-2017 22:53
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 Thank you so much,... again! Smile

Rosevinge
 
Zeegers
#7 Print Post
Posted on 08-02-2017 09:11
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Location: Soest, NL
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 I have misjudged this one, it is frontosa after all.
In the hand, the difference is easy. If you turn the abdomen to and fro, frontosa always has strong anterior bands on tergites, subalpina has a Sarcophaga-Pollenia like shifting pattern on all tergites.
But we cannot turn pictures, alas.

The length of third antennal segment, the broad vertex and the strongly convex facial ridge clearly point to B. frontosa. Which makes much more sense given date. I expect subalpina in Norway around in May, possibly end of April.

Theo
 
Morten A Mjelde
#8 Print Post
Posted on 08-02-2017 23:13
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 Thank you for useful knowledge!

Rosevinge
 
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