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 First Bombyliidae 2008 - Bombylius cf. undatus
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| jorgemotalmeida |
Posted on 20-03-2008 13:09
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 Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
Today I spotted my first Bombyliid on a wind day and clear sky. Temperature around 15 ?C. EDIT: Title changed from "First Bombyliidae 2008 - Bombylius cf. cruciatus" to "First Bombyliidae 2008 - Bombylius cf. undatus" jorgemotalmeida attached the following image:  [181.38Kb] Edited by jorgemotalmeida on 21-03-2008 17:34 |
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| jorgemotalmeida |
Posted on 20-03-2008 13:12
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Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
another..
jorgemotalmeida attached the following image:  [190.79Kb] |
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| jorgemotalmeida |
Posted on 20-03-2008 13:14
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Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
another...
jorgemotalmeida attached the following image:  [192.03Kb] |
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| jorgemotalmeida |
Posted on 20-03-2008 13:30
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Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
in last year, http://diptera.in...post_23145 I spotted the B. cruciatus early. This year the weather is much colder and rainy in relation to the 2007. |
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| crex |
Posted on 20-03-2008 13:41
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 Member Location: Sweden Posts: 1996 Joined: 22.05.06 |
I see you are getting a little collection of pinned flies. Do you collect all kinds or do you specialize in some families? How many do you have so far? I understand this is an awkward question for many collectors so you don't have to reply  |
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| David Gibbs |
Posted on 20-03-2008 16:18
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 Member Location: Bristol, UK Posts: 833 Joined: 17.06.06 |
This would appear to be the same species as posted by Rui a few days ago. I have attempted to key it and the answer i come to is Bombylius undatus. However, not all required characters are visible so this is still a provisional det. |
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| jorgemotalmeida |
Posted on 20-03-2008 16:36
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Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
I found 4 bombyliids today. Two like these. And maybe an Anastoechus species...(not sure about this one, it run away). So which features would be need to photograph just to be sure... AND what are the main differences between B. undatus and B. cruciatus? |
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| David Gibbs |
Posted on 20-03-2008 17:23
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Member Location: Bristol, UK Posts: 833 Joined: 17.06.06 |
for a species i do not have in my collection i can only be sure with a specimen in front of me (and even then not every time). Photos can so often be deceptive. but if i could be sure of leg colour i think we could key it with 90% certainty. female cruciatus has a white band across abdomen, see http://www.diptera.info/photogallery.php?photo_id=1866 |
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| jorgemotalmeida |
Posted on 21-03-2008 02:58
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Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
black tarsi, tibia brown, and femur with a mix of brown/black. We can see a black line very softly on the femur but not in the full length. Given this can we say that this is the B. undatus? So this http://diptera.in...post_23145 is also the B. undatus? |
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| David Gibbs |
Posted on 21-03-2008 10:37
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Member Location: Bristol, UK Posts: 833 Joined: 17.06.06 |
jorgemotalmeida wrote: black tarsi, tibia brown, and femur with a mix of brown/black. We can see a black line very softly on the femur but not in the full length. Given this can we say that this is the B. undatus? NO, but you can say in keys to undatus in Engel. B. ? undatus would be reasonable. given that a fairly large minority of European beefly species are yet to be described, photographs are NEVER good enough for me to name unfamilar species. So this http://diptera.in...post_23145 is also the B. undatus? NO, dont get males and females mixed up, look at female cruciatus in gallery http://www.dipter...to_id=1866. your ?undatus shares with male cruciatus the pale median line and wing pattern only. |
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| jorgemotalmeida |
Posted on 21-03-2008 17:32
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Member Location: Viseu - PORTUGAL Posts: 9296 Joined: 05.06.06 |
thanks, Gibbs. It is clear now.  I found a Seguy's description concerning B. undatus. "B. undatus MIKAN. - KERT?SZ, V, 144. 9. T?te h?riss?e de longs poils noirs et de courts poils jaunes, quel254 FAUNEDE FRANCE.- DIPT?RES ques ?cailles dor?es couch?es sur le t?gument. Thorax, bord ant?rieur avec une bande de poils noirs; pleures et sternites abdominaux ? villosit? d'un gris sare. Balanciers noir?tres. Pattes rousses. - cf : fourrure jaune plus ?paisse, pattes plus claires. Ailes plus larg-ement brunies. - L. 7- 9,5 mm." |
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but don't see the image in the post.