The Society for the study of flies (Diptera)
Affiliated to the British Entomological and Natural History Society (BENHS)
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#1 2011-12-08 14:30:05
- oceanlis2000
- Registered user
- Name: Array Array
- Registered: 2010-07-12
- Posts: 428
Criorhina
Hello
I found this photo
http://www.fugleognatur.dk/wildaboutden … ;ID=127506
while looking for Criorhina berberina
it's an interesting colour form that I haven't seen before I guess there are 2 questions
1 why not ranunculi?
2 if berberina have any similar colour forms been found in the UK and does it have a variety name (we have 2 in the Stubbs and Falk 2002)
certainly the sidea of T2 have no long hairs so not floccosa!
Thank you
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#3 2011-12-09 03:12:47
- falky
- Registered user
- Name: Steven Falk
- From: Kenilworth
- Registered: 2009-11-30
- Posts: 379
Re: Criorhina
Notice the swollen hind femorae too - a ranunculi feature. I'm only aware of 2 form of berberina in Britain, but rather tickled that the fly predicted the eventual arrival of Bombus hypnorum in Britaian. I saw both together at one site recently, and was left in no doubt that a nice bit of mimicry was taking place - one presumably disrupted by ice ages and the formation of the English Channel.
Falky
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#4 2011-12-10 20:45:36
Re: Criorhina
Yes, I too mistook hypnorum for berberina (or vice versa - I can't recall which way round). Both were going to raspberry flowers - a favourite of C berberina. They are extremely good mimics of hypnorum.
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#5 2011-12-12 13:46:53
- oceanlis2000
- Registered user
- Name: Array Array
- Registered: 2010-07-12
- Posts: 428
Re: Criorhina
Yes I was expecting plae hairs on the scutellum here they are black it seems that that's ok hypnorum is a recent sighting for us in mid-Wales (past few years)
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