Diptera.info :: Identification queries :: Diptera (adults)
 Heleomyzidae Heteromyza? male
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| blowave |
Posted on 20-01-2012 22:36
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 Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
Hello, This was inside on 7th January, near Lincoln UK. It was small, I think 5-6mm. It looks to me like Heteromyza but the eyes are different to H. atricornis male. Could this be Heteromyza oculata? There are no photos to be found, I did find a female which looks very much like the one I had in December .. http://www.dipter...d_id=44233 http://www.biolib.../id106202/ Janet blowave attached the following image:  [186.6Kb] http://cubits.org... |
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| blowave |
Posted on 20-01-2012 22:36
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
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blowave attached the following image:  [174.15Kb] http://cubits.org... |
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| blowave |
Posted on 20-01-2012 22:37
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
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blowave attached the following image:  [183.27Kb] http://cubits.org... |
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| blowave |
Posted on 20-01-2012 22:38
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
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blowave attached the following image:  [88.69Kb] http://cubits.org... |
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| blowave |
Posted on 20-01-2012 22:38
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
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blowave attached the following image:  [185.28Kb] http://cubits.org... |
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| Andrzej |
Posted on 20-01-2012 23:26
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Member Location: Poland Posts: 2433 Joined: 05.01.06 |
H. atricornis
dr. A. J. Woznica, Institute of Environmental Biology, Wroclaw University of Environmental & Life Sciences |
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| blowave |
Posted on 20-01-2012 23:38
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
Andrzej wrote: H. atricornis Thank you Andrzej  , that is what I had named it but the photos of the male in the gallery show the eyes to be closer together, nor do they look as deep. Why is this?http://www.dipter...to_id=4930 http://www.dipter...to_id=4931 http://cubits.org... |
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| Tony Irwin |
Posted on 21-01-2012 00:45
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 Member Location: Norwich, England Posts: 7347 Joined: 19.11.04 |
Hi Janet Your fly is a female. In most groups of flies, the males have bigger eyes, and are thus closer together. It's often one of the easiest ways to sex a fly (but there are exceptions!) Edited by Tony Irwin on 21-01-2012 00:46 Tony ---------- Tony Irwin |
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| blowave |
Posted on 21-01-2012 01:47
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
Tony Irwin wrote: Hi Janet Your fly is a female. In most groups of flies, the males have bigger eyes, and are thus closer together. It's often one of the easiest ways to sex a fly (but there are exceptions!) Hi Tony... uuhh, no I don't think this is a female, if it is then it has to be another species.  Look at the eyes on the female I posted before ... http://www.dipter...d_id=44233 http://cubits.org... |
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| blowave |
Posted on 21-01-2012 02:07
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
Another angle of this fly..
blowave attached the following image:  [101.79Kb] http://cubits.org... |
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| blowave |
Posted on 21-01-2012 02:09
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
There's no 'head' showing at all under the eyes ..
blowave attached the following image:  [144.46Kb] http://cubits.org... |
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| blowave |
Posted on 21-01-2012 02:11
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
Female's eyes .. loads of space between them on the face too!
blowave attached the following image:  [96.3Kb] http://cubits.org... |
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| blowave |
Posted on 21-01-2012 02:17
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
I borrowed Roger's photo from the gallery to show the male's eyes of his H. atricornis ..
blowave attached the following image:  [96.42Kb] http://cubits.org... |
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| blowave |
Posted on 21-01-2012 03:03
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
H. rotundicornis fits!
blowave attached the following image:  [131.2Kb] http://cubits.org... |
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| Tony Irwin |
Posted on 21-01-2012 11:13
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Member Location: Norwich, England Posts: 7347 Joined: 19.11.04 |
Agreed - it is male. I'll leave it to Andrzej to resolve!
Tony ---------- Tony Irwin |
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| Andrzej |
Posted on 21-01-2012 13:32
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Member Location: Poland Posts: 2433 Joined: 05.01.06 |
Hmm, I am in trouble ;-). I will check my collection to compare these species ! Pics are pics only ... 
Andrzej attached the following image:  [51.29Kb] Edited by Andrzej on 21-01-2012 13:34 dr. A. J. Woznica, Institute of Environmental Biology, Wroclaw University of Environmental & Life Sciences |
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| Andrzej |
Posted on 21-01-2012 13:36
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Member Location: Poland Posts: 2433 Joined: 05.01.06 |
I enclosed a pic from Czerny (1927) ! It is the head of the true male of H. rotundicornis
dr. A. J. Woznica, Institute of Environmental Biology, Wroclaw University of Environmental & Life Sciences |
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| blowave |
Posted on 21-01-2012 14:06
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
Andrzej wrote: I enclosed a pic from Czerny (1927) ! It is the head of the true male of H. rotundicornis Then it has to be H. rotundicornis Andrzej! I think the drawing has over exaggerated the closeness of the eyes, there are 'grooves' on the face which may have been included in the eyes but really should not have been! I have photos of the same fly from January and early March last year, I posted it but I don't think I got a reply. The only other Heteromyza is H. oculata which has "eyes tapered near ocelli markedly". Is there a possibility the female I had could also be H. rotundicornis? Two shots of the head from last year .. this from 3rd March blowave attached the following image:  [192.47Kb] Edited by blowave on 21-01-2012 14:11 http://cubits.org... |
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| blowave |
Posted on 21-01-2012 14:08
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
Same fly from 4th March 2011
blowave attached the following image:  [160.49Kb] Edited by blowave on 21-01-2012 14:09 http://cubits.org... |
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| blowave |
Posted on 23-01-2012 20:46
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Member Location: LINCOLN, UK Posts: 3151 Joined: 27.06.07 |
Andrzej wrote: Hmm, I am in trouble ;-). I will check my collection to compare these species ! Pics are pics only ... Hi Andrzej, have you managed to compare your collection yet? Assuming it is Heteromyza then it should be H. rotundicornis. Unless it is a different genus of course! It would be a nice addition to the gallery! (p.s. I got another one on the window recently!  )
http://cubits.org... |
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