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Posted by swee on 19-08-2020 15:32

Hi, could anyone please help ID this fly, please? The fly is about 3-4 mm and has a flat-face and the wings is very peculiar. It has some sort of macrotrichia and a short 'growth' UNDERSIDE of the wings. I have no idea about the habitat of the fly as I found it on my office desk last week.

Cheers

Edited by swee on 21-08-2020 02:48

Posted by swee on 19-08-2020 15:37

ventral side of wing at close up - note the 'mactrotrichia' and the small structure on the underside of the wing.

Edited by Paul Beuk on 19-08-2020 15:50

Posted by Paul Beuk on 19-08-2020 15:53

The small flexure in the cubital vein makes me suspect it is a chloropid. Check the frons as well, because that is not visible in the pictures.

Posted by swee on 19-08-2020 16:05

Thanks Paul for the lead. I attached another two images that may show the ocelar triangle a bit more.

Edited by Paul Beuk on 19-08-2020 16:58

Posted by swee on 19-08-2020 16:08

a more visible image for the size of ocelar triangle

Edited by Paul Beuk on 19-08-2020 17:00

Posted by von Tschirnhaus on 25-08-2020 16:13

Chloropidae, Oscinellinae, male of the genus Tylopterna Bezzi,1917, surely an undescribed species and not T. monstrosum Bezzi,1917 known from the Phillipines. In Borneo and other parts of the Oriental Region occur several undescribed species which are under study. Females have no bulldozer-like flattened head/frons and no hollow extension on the wings looking like "normal" oscinellids. Males partly possess in addition dark and thickened spots on their wings, wings streched out in three dimensions. Certain species were fogged from the canopy of rainforest trees.