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Diptera.info :: Identification queries :: Diptera (adults)
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ID help -> Chloropidae: Oscinimorpha novakii
dror
#1 Print Post
Posted on 28-04-2024 21:19
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Photos from Jerusalem, 28 Apr 2024 afternoon.
Apologies for the low quality, they are very small (2-3 mm).
And what is the drop of liquid handing from the female's mouth?
dror attached the following image:


[178.48Kb]
Edited by dror on 29-04-2024 20:28
 
dror
#2 Print Post
Posted on 28-04-2024 21:20
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another view
dror attached the following image:


[195.11Kb]
 
dror
#3 Print Post
Posted on 28-04-2024 21:20
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and yet another one
dror attached the following image:


[176.19Kb]
 
Jan Maca
#4 Print Post
Posted on 29-04-2024 06:20
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Family Chloropidae.
 
dror
#5 Print Post
Posted on 29-04-2024 09:59
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Thanks Jan!
Based on the gallery maybe Oscinimorpha novakii? (apparently not uncommon in Israel)
 
von Tschirnhaus
#6 Print Post
Posted on 29-04-2024 19:48
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Location: Bielefeld, Germany
Posts: 432
Joined: 04.11.07

Oscinimorpha novakii (Srobl, 1902; Two posts were already answered, as follows:
https://www.diptera.info/photogallery.php?photo_id=10336&rstart=0
http://www.diptera.info/forum/viewthread.phpforum_id=5&thread_id=72912&pid=308048#post_308048 .
Dror asked me about the droplets on the proboscis and I answered:
In the database "World Chloropidae Online" - https://sdei.senckenberg.de/tschirnhaus-chloropidae , 77 sources on this species are listed. Many fly species of many families were observed and photographed with such a droplet of ingested fluid. Much speculations have been published about that behaviour. Also my own observations in tropical rainforests on males of Agromyzidae, genus Phytobia, support the opinion of other dipterists. Flies suck in electrolytes containing salt or sweat of humans, washing powder remains from a washing line, eye fluid of turtles, nectar from flowers with sugar, etc. They regurgitate the fluid, let the droplet evaporate a certain time on the tip of the proboscis, the "labellum", with its pseudotracheae, then suck it in and repeat the procedure several times in order to concentrate the sugar or salt or urine of mammals or bird droppings in their stomach. By and by, the droplet becomes smaller and smaller. That method minimizes the content of fluid in the abdomen which after the first ingestion appears as if blown up like a baloon. You can also observe pairs of flies which exchange "kisses" with the simultaneous transfer of a droplet as a mating gift. In the case of this photo that might have happened before and might have tranquillised the female before copulation.
 
http://www.uni-bielefeld.de/biologie/sammlung/inde
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