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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
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 07:37
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Location: Soest, NL
Posts: 9116
Joined: 21.07.04

As nicely illustrated.

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

Theo
 
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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

23.04.15 22:20
Please, how to post a question in the forum?

21.04.15 22:36
Thanks Paul, nice clue Milto: http://www.biodive
rsidadvirtual.org/
insectarium/A-dete
rminar-img683158.h
tml

21.04.15 12:53
I guess some Bombyliidae may parasitize on Halictus, perhaps Miltogramminae?

20.04.15 18:53
Is there any diptera brachycera fly that parasites Halictus (Apoidea)?

18.04.15 10:18
Thanks very much for the shout

12.04.15 15:59
Nope. It is the base(al section) of the radial vein.

11.04.15 11:03
Can any1 help pls? Is r-stamme= Rs- Radial sector Thx

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