Diptera.info :: Family forums :: Asilidae Forum
 Robber from Wiltshire. UK
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| SteveC |
Posted on 24-01-2009 17:43
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Member Location: Wiltshire, England Posts: 20 Joined: 15.07.04 |
I originally posted this as a general query but I'm assured it's Asilidae [and possibly Machismus rusticus as suggested from a different forum]. Taken on chalk downland in Wiltshire, UK. 29-06-05. Don't remember size but it's sat on the isolator of an electric fence pole if that helps with scale! Any suggestions gratefully received. TIA. Steve. SteveC attached the following image:  [88.11Kb] Edited by SteveC on 24-01-2009 18:17 This mail is a natural product. The slight variation in spelling and grammar enhance its individual character and beauty and in no way are to be considered flaws or defects. |
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| Danny Wolff |
Posted on 24-01-2009 19:09
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 Member Location: Germany Posts: 329 Joined: 27.05.04 |
Hi, this is a female Leptarthrus brevirostris. Greetings, Danny Wolff |
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| SteveC |
Posted on 25-01-2009 13:13
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Member Location: Wiltshire, England Posts: 20 Joined: 15.07.04 |
Danny Wolff wrote: Hi, this is a female Leptarthrus brevirostris. Greetings, Danny Wolff Many thanks Danny. All the features fit, except one, the abdomen on my specimen has grey 'blobs' on each tergite whereas the specimen in 'Stubbs & Drake' is all black. The description also states a black abdomen. Could mine be recently emerged and the grey is just an artefact of being a 'fresh' specimen? Cheers, Steve. Edit: just looked at some pics in Malcolm Storeys excellent Bioimages website and it is clear that these grey markings are only visible in lateral views - from a dorsal position the abdomen appears entirely black; mystery solved and thanks again Danny 
Edited by SteveC on 25-01-2009 16:25 This mail is a natural product. The slight variation in spelling and grammar enhance its individual character and beauty and in no way are to be considered flaws or defects. |
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| Danny Wolff |
Posted on 26-01-2009 16:37
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Member Location: Germany Posts: 329 Joined: 27.05.04 |
Hi, white/grey markings on abdomen occur in females only. Greetings, Danny Wolff |
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| SteveC |
Posted on 26-01-2009 19:23
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Member Location: Wiltshire, England Posts: 20 Joined: 15.07.04 |
OK, thanks for that. Cheers, Steve. This mail is a natural product. The slight variation in spelling and grammar enhance its individual character and beauty and in no way are to be considered flaws or defects. |
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