Thread subject: Diptera.info :: Identification needed ...

Posted by von Tschirnhaus on 19-08-2022 17:10
#4

Chloropidae, Oscinellinae: Eribolus hungaricus Becker, 1910 [= Oscinella plana de Meijere, 1918)]. This tiny and narrow fly (small specimens measure only 2.0mm), possesses the typical wings of Oscinellinae; one or more orbital setae are longer than the remaining ones - different from the closely related genus Oscinella. In optimal lateral profile the best feature for the identfication of the genus is the flattened scutum (mesonotum) of all 8 Holarctic species. Only one genus in the high Andes of Venezuela [collected by me from behind dry cold-protecting leaves of an Asteraceae] has a similar depressed thorax! E. hungaricus has the frons completely dark. The dusted ocellar triangle ends distinctly before the anterior margin of the frons. The species is bound to reed beds (Phragmites australis), especially if growing on salty ground.

Edited by von Tschirnhaus on 22-11-2022 20:12