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View Thread :: Identification queries :: Diptera (adults)
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Identification of female Tanyptera
John Bratton
#1 Print Post
Posted on 20-02-2019 12:13

Location: Menai Bridge, North Wales, UK
Posts: 620
Joined: 17.10.06

Hello. Can someone clarify how you separate female Tanyptera atrata and nigricornis, please? In the draft British key, it says that atrata has the trochanters orange and females have tergites 1-3 mainly red; while nigricornis has the trochanters black and female tergites 1-2 mainly red.

But in most photos of nigricornis, it has more red than atrata.

For example, compare - Photo Albums: Tanyptera atrata (female) (1)

with - Photo Albums: Tanyptera nigricornis (female) (1)

And what about - Photo Albums: Tanyptera atrata (female) (3)
It has much red on the abdomen, but black trochanters.

Best wishes
John Bratton
#2 Print Post
Posted on 20-02-2019 14:01

Location: Soest, NL
Posts: 17941
Joined: 21.07.04

Dear John

Both spcies are extremely variable, but the colouration of the trochanters is decisive. There was a time I could not believe it myself either...

John Bratton
#3 Print Post
Posted on 21-02-2019 15:14

Location: Menai Bridge, North Wales, UK
Posts: 620
Joined: 17.10.06

Thanks very much.

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Date and time
30 May 2023 14:58


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23.02.23 21:29
Has anyone used the Leica DM500, any comments.

27.12.22 21:10
Thanks, Jan Willem! Much appreciated. Grin

19.12.22 11:33
Thanks Paul for your work on keeping this forum available! Just made a donation via PayPal.

09.10.22 17:07
Yes, dipterologists from far abroad, please buy your copy at veldshop. Stamps will be expensive, but he, the book is unreasonably cheap Smile

07.10.22 11:55
Can any1 help out with a pdf copy of 1941 Hammer. Vidensk. Meddel. Dansk Naturhist. Foren. 105; thank you

05.10.22 19:59
Found! https://www.veldsh

05.10.22 19:53
@zeegers, your book seems difficult to get from Spain, is there another way?

08.09.22 09:29
Ladies and gentlemen https://jeugdbonds

26.08.22 15:06
Lis - This is vol.11 (eleven) and is 346 pages. Sorry, don't have a copy.

15.08.22 14:22
Hello, can any1 help out with a copy of Catalogue of Palaearctic Diptera II: Scathophagidae-Hyp
odennatidae? or at least how many pages it is? thx

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