Diptera.info :: Identification queries :: Diptera (adults)
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 Opomyzidae genus Geomyza
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| Oryctes |
Posted on 24-10-2019 13:09
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Member Location: Posts: 46 Joined: 21.08.19 |
 Oryctes : France : Villeneuve-d'Ascq : 59650 : 05/09/2019 Altitude : 51 m - Taille : 4 mm environ Réf. : 242126  Oryctes : France : Villeneuve-d'Ascq : 59650 : 05/09/2019 Altitude : NR - Taille : 4 mm environ Réf. : 242129 Bonjour, I am back to the site with this little fly (4mm), the name of which is not easy to find. I met it in September on the edge of a little dried-up pool in Villeneuve-d'Ascq (north of France). No difficulty to find its family (Opomyzidae) and its genus (Geomyza) but, as usual, the question is : is it possible to give a name of species to this little fly ? Searching for this insect in the galleries of DI and LMDI, I thought it rather could be Geomyza balachowskyi or Geomyza Hackmani. Actually, it is just hypothesis based on the "habitus" but I am not sure my photos are precise enough to decide. Thank you in advance for your answer, Dominique Edited by Oryctes on 30-10-2019 16:24 |
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| Oryctes |
Posted on 30-10-2019 16:32
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Member Location: Posts: 46 Joined: 21.08.19 |
Time is passing and, up to now, I got no answer to my question. I am a little disappointed because, if possible, I would like to know the species of this fly. Of course, I wonder too what is the reason of the silence. Would I have badly formulated my initial question ? The result is that now I am asking you two questions instead of one : one on the species, one on the silence !  Dominique |
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| Jan Willem |
Posted on 25-01-2020 23:25
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 Member Location: Waalwijk, The Netherlands Posts: 2124 Joined: 24.07.04 |
Difficult to say without studying sternite 8. However, in G. balachowskyi the abdomen is in most cases clearly banded. It is, again in most cases, black in G. hackmani. Also the post-scutellum is normally less dark in G. balachowskyi. So I would say Geomyza cf. hackmani.
Jan Willem van Zuijlen |
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but don't see the image in the post.