Gallery Links
Users Online
· Guests Online: 10

· Members Online: 0

· Total Members: 4,368
· Newest Member: Peter Fitz
Forum Threads
Theme Switcher
Switch to:
Last Seen Users
· Zeegers00:17:06
· John Carr00:19:55
· Pentti Ketola00:28:54
· kuv00:29:14
· Maherjos00:35:34
· Woodmen00:38:27
· Jan Maca00:49:48
· JarJar01:00:16
· DPD01:05:31
· Chen02:09:59
Latest Photo Additions
View Thread :: Identification queries :: Diptera (adults)
Who is here? 1 guest(s)
 Print Thread
Opomyzidae genus Geomyza
#1 Print Post
Posted on 24-10-2019 14:09

Posts: 7
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
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,
Edited by Oryctes on 30-10-2019 17:24
#2 Print Post
Posted on 30-10-2019 17:32

Posts: 7
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 ! Smile
Jan Willem
#3 Print Post
Posted on 25-01-2020 23:25
User Avatar


Location: Waalwijk, The Netherlands
Posts: 1879
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
Jump to Forum:
Similar Threads
Thread Forum Replies Last Post
Keroplatidae Genus Macrocera in south India- Diptera (adults) 4 26-02-2020 13:02
In Bulgaria: Genus Anthrax? => Hemipenthes morio Diptera (adults) 3 25-02-2020 19:53
ID Genus, Calliphoridae Diptera (adults) 3 14-02-2020 16:02
Scatopsidae Genus? Diptera (adults) 2 11-02-2020 15:58
Chloropid Fly of genus? Diptera (adults) 3 10-02-2020 09:27
Date and time
26 February 2020 14:07


Not a member yet?
Click here to register.

Forgotten your password?
Request a new one here.
Temporary email?
Due to fact this site has functionality making use of your email address, any registration using a temporary email address will be rejected.

Please, help to make
possible and enable
further improvements!
Latest Articles
Syrph the Net
Those who want to have access to the Syrph the Net database need to sign the
License Agreement -
Click to Download

Public files of Syrph the Net can be downloaded HERE

Last updated: 25.08.2011
You must login to post a message.

23.12.19 23:36
thx Paul! All is OK! Merry Xmas to All!

04.12.19 10:23
Thx! TumbsUp

04.12.19 09:33
There are some internal issues withy their servers and they are working on it.

02.12.19 08:42
Anyone knows what happened with the Catalog of Fossil Diptera at the webpage? Cannot access it Frown

01.11.19 22:46
Hi! may I ask, why the soldierfly banner (https://www.dipte
) is so big (4790x870 Pixels, 1, 4 M Cool? It always lasts minutes to load on a slow connection and costs a

18.09.19 20:06
Jewell699, you should post it in the forum, not submit it for the gallery.

15.09.19 20:41
Jewelm699 - did you upload it to a forum (which one?) or the gallery? I can't find it.

11.09.19 13:15
I’m hoping someone can identify the phoridae maggot or pupae I just uploaded.

28.08.19 14:29
Rafael p is legs and f1 is fore femur

26.08.19 17:13
If you experienced a very sluggish site recently, it may have been because someone tried to upload a maliciuous script by force. It appears to have failed. The visitor was blocked further access.

Render time: 1.16 seconds | 144,196,898 unique visits