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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 21:49
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Location: New Brunswick, Canada
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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:


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Zeegers
#2 Print Post
Posted on 07-06-2007 07:37
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Location: Soest, NL
Posts: 9142
Joined: 21.07.04

As nicely illustrated.

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

Theo
 
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19.05.15 14:40
Link to Nikita's articles https://archive.or
g/details/PapersOn
Diptera

19.05.15 14:32
Hi hope so can tell me if this is ok griffes et pelotes - claws and pulvilli Thx

09.05.15 12:04
Thx Stephane, I see by rather than from- no your English is great!

09.05.15 11:53
No, I would understand : "Calypters small, the lower one is projecting over the upper one by 3/4" (my english is probably not the best).

09.05.15 10:47
Thx Stephane p296 Seguy Calypters small, le thoracique saillant des 3/4 the lower is 3/4 the size or length of the upper? is that how you understand it

08.05.15 21:20
I assume the sentence talk about calypters (cuillerons) : it means that the lower (thoracic) one is protruding.

07.05.15 14:11
Can anyone help out with a translation for le thoracique saillant.. (its not thorax!) Thx

01.05.15 07:55
Thanks Tony. Curious all those flies belong to different families but all of them have white face. Maybe that is useful to see inside burrows?

30.04.15 13:06
long time not coming here, my best wishes to everyone

24.04.15 01:03
In the Dipterist's Handbook, Halictus are recorded as hosts of Thecophora and Zodion; Leucophora sociata; Metopia argyrocephala

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