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Diptera.info » Family forums » Syrphidae
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Anasimyia from Belgian Ardennes
Mark van Veen
I encountered this Anasimyia last weekend in the Belgian Ardennes in a wet grassland along a stream. I couldn't catch it (photo is from a distance)... I would say male interpuncta or lunulata. With much hesitation, I think it is more lunulata than interpuncta judging the form of the abdomen en the form of the spots. Tergite 4 is however not what lunulata should have and tergite 3 is not what interpuncta should have. Anyone a suggestion?
 
http://home.hccnet.nl/mp.van.veen/
Menno Reemer
My guess would also be in favour of A. lunulata. I compared the picture with some specimens in my collection and find they agree quite well. The shape of the dusted/undusted parts on tergite 4 seem OK. In Verlinden's drawing (also used in your book) there is no black fascia at the anterior margin of tergite 4, but in my specimens there is (also in e.g. the picture in Torp's book). Apparently this black anterior margin is not visible in specimens in which the posterior margin of tergite 3 partly covers tergite 4.
The shape of the grey markings on tergite 3 also agrees with A. lunulata.
I guess Frank Van de Meutter and other Belgians will be very interested to hear about this!
 
Mark van Veen
Thanks Menno. I'll contact Frank. According to Verlinden (1991, 1994) it has very rare in Belgium and never found in the Ardennes!
 
http://home.hccnet.nl/mp.van.veen/
caliprobola
Hi Mark,

the species has been found in the Belgian ardennes, in fact, the only recent Belgian observation (ie. the last 20 or so years) is from a military domain near Arlon. Nice find!

grtz
Pieter Vantieghem
 
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Date and time
05 February 2025 05:11
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