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Diptera.info :: Identification queries :: Diptera (adults)
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Chrysops key character
Tony T
#1 Print Post
Posted on 06-06-2007 22:49
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Location: New Brunswick, Canada
Posts: 654
Joined: 08.02.07

3 June 2007 New Brunswick Canada.
A very useful, and convenient, character for identifying female Chrysops spp. is the absence (top image C. calvus)) or presence (bottom C. mitis) of a yellow pollinose stripe on the clypeus. These character states readily divide the North American spp. into 2 more manageable groupings.
Tony T attached the following image:


[121.21Kb]
 
Zeegers
#2 Print Post
Posted on 07-06-2007 08:37
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Location: Soest, NL
Posts: 10311
Joined: 21.07.04

As nicely illustrated.

In the Old World, unfortunately, the majority is of the lower type.

Theo
 
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27 May 2016 10:16
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23.05.16 12:37
in fact I prefer Schwinger to halteren

23.05.16 12:37
Thx very much Paul

23.05.16 09:12
Yup, Schwinger is halter, a yellow halter in this case. Smile

21.05.16 12:32
Can anyone help out with the German word Schwinger gelb - is this an old word for Haltere?

06.05.16 12:39
Thanks John

30.04.16 22:14
Paedogenesis, reproduction before adulthood, is well known in Heteropezini.

29.04.16 13:22
Can any1 help out with des larves paedogénétiques de the larvae...? Thx

29.04.16 12:36
Thanks very much Susan

26.04.16 16:24
The sentence translates as 'in the very wet and decayed wood of an old elm tree'.

22.04.16 12:45
Thanks John

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