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Diptera.info :: Identification queries :: Diptera (adults)
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Tachinidae (now identified as Bithia spreta)
Malgo
#1 Print Post
Posted on 22-11-2020 16:43
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 This fly was about 8mm and seen on Martin Down, a chalk grassland site in the south of England. The bristly abdomen suggests a Tachinid but vein M curves gently rather than bending sharply. Any help in identifying it would be appreciated.
Malgo attached the following image:


[146.53Kb]
Edited by Malgo on 22-11-2020 17:34
 
Malgo
#2 Print Post
Posted on 22-11-2020 16:45
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 Adding photo
Malgo attached the following image:


[143.72Kb]
Edited by Malgo on 22-11-2020 16:52
 
Malgo
#3 Print Post
Posted on 22-11-2020 16:48
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 Adding photo
Malgo attached the following image:


[131.2Kb]
Edited by Malgo on 22-11-2020 16:52
 
Malgo
#4 Print Post
Posted on 22-11-2020 16:53
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 Fourth photo
Malgo attached the following image:


[134.77Kb]
 
Zeegers
#5 Print Post
Posted on 22-11-2020 17:01
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Location: Soest, NL
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 A Bithia spreta, a chalky species indeed.
While Sarcophagidae always has a angular bend in vein, several Tachinidae do not: all the tribe Blondeliini, many Leskiini (amongst which Bithia) and no doubt others.

Theo
 
Malgo
#6 Print Post
Posted on 22-11-2020 17:33
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 Many thanks for the quick identification. This species does not show up on most sites featuring Tachinids so it is not surprising I couldn't id it. Even this site only has photos identified as Bithia sp.

Malcolm
 
Zeegers
#7 Print Post
Posted on 22-11-2020 19:14
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Location: Soest, NL
Posts: 19143
Joined: 21.07.04

 Many Bithia are very difficult to separate, but spreta is a kind of "Eriothrix light" if you get my meaning: small red lateral spots on tergites.
It is definitely uncommon, but well known from southern England.


Theo
 
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nichilme
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Anyone has this article'A REVISION OF SPECIES OF THE GENUS CADREMA WALKER (DIPTERA, CHLOROPIDAE) FROM ISLANDS IN THE INDIAN OCEAN'？ Smile

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Thanks for your proposal, but for me this option is ineligible.

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For those specialists not active on Facebook, I just ask to consider to join our group on FB. Please, be aware that it is not necessary at all to be active on FB outside the diptera group. Actually, n

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If you have some spare money, there is a copy (together with keys to pupae and larvae) for sale by Hermann L. Strack, Loguivy Plougras, France

smol
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Appreciate it, Tony Irwin! I got the hint to use the key next to Langton and Pinder key for females of Chironomidae. So no specific queries, except the keys... I will keep this on my list and hope th

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I have the hard copy book, if you have any specific queries, but I'm not scanning the 500+ pages!

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Anyone has "Chironomidae of the Holarctic region. Keys and diagnoses. Part 3. Adult Males Entomologica Scandinavica Supplement 34"? smolwaarneming@gma
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Nikita Vikhrev
28.05.25 20:57
I have Russian Coenosia. nikita6510@ya.ru

smol
28.05.25 12:25
Is someone able to share with me "A key to the Russian species of the genus Coenosia"?

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