Diptera.info :: Identification queries :: Diptera (adults)
 Muscid>>Hydrotaea pilipes f.
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| philporter |
Posted on 21-11-2012 17:36
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Member Location: Lincoln UK Posts: 554 Joined: 07.02.07 |
Smallish black muscid. Lightly dusted on tergites which all have a row of recumbent marginal bristles. One long pd and 3 small av on hind tibia. No bristles on front tibia. Sternopleurals 1:1. Head with deeply recessed ptinial suture. Lunule appears whitish with hairs at certain angles, and frons is prominent just above it. Frontal orbits shining black, contimnuing down facial orbits until heavily dusted from just below base of 3rd antennal segment. Antennae minutely pubescent. Eyes bare, plapus black. Two upper orbital bristles pointing outwards, one lower bristle forwards. Apical scutellar bristles converging to just touching. Full rows of rather weak dc’s and acrostichals. Blackish halteres. See pictures below Edited by philporter on 22-11-2012 10:21 |
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| philporter |
Posted on 21-11-2012 17:40
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Member Location: Lincoln UK Posts: 554 Joined: 07.02.07 |
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philporter attached the following image:  [182.37Kb] |
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| philporter |
Posted on 21-11-2012 17:41
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Member Location: Lincoln UK Posts: 554 Joined: 07.02.07 |
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philporter attached the following image:  [184.48Kb] |
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| philporter |
Posted on 21-11-2012 17:42
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Member Location: Lincoln UK Posts: 554 Joined: 07.02.07 |
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philporter attached the following image:  [185.08Kb] |
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| Nikita Vikhrev |
Posted on 21-11-2012 18:19
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 Member Location: Moscow, Russia Posts: 9571 Joined: 24.05.05 |
Where? When? How small, 4-5 mm? My guess is Hydrotaea armipes. In this case t3 should be also with 1 ad and eyes should be shortly hairy (see against black background) Nikita Vikhrev - Zool Museum of Moscow University |
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| andrzej grzywacz |
Posted on 21-11-2012 21:05
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 Member Location: Poland Posts: 103 Joined: 09.02.08 |
I do not think that it is Hydrotaea armipes. I can see 1ad on mid tibia (H. armipes does not have ad), frontal triangle and parafacials shining black and triangle reaching only middle of frons. Thus, I think H. pilipes. |
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| philporter |
Posted on 22-11-2012 10:20
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Member Location: Lincoln UK Posts: 554 Joined: 07.02.07 |
Thank you Nikita and Andrzej, I had not thought that Hydrotaea could be so shiny. I have checked the details through my key and pilipes fits. (1 short ad in apical 1/2 of mid tibia; frons at vertex wider than eye; 4 fine bristles ventrally at base of mid femur). This was taken on 1/7/12 at gravel pits near Lincoln UK and appears to be an uncommon species here. Regards Phil Porter |
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