Melanostoma scalare (Syrphidae) - a female Syrphid fly before oviposition

Description:

The green halteres tend to become green whee eggs are being developed [Jrgen Peters via diptera.info] and this female seems to be about starting oviposition.Phylum: Arthropoda LATREILLE, 1829 (arthropods, Gliederfer)Subphylum: Hexapoda BLAINVILLE, 1816 (Sechsfer)Class: Insecta LINNAEUS, 1758 (insects, Insekten)Subclass: Pterygota LANG, 1888 (Fluginsekten)Infraclass: Neoptera MARTYNOV, 1923Order: Diptera LINNAEUS, 1758 (true flies, mosquitoes & gnats, Fliegen & Mcken)Suborder: Brachycera SCHINER, 1862Infraorder: Muscomorpha [Syn.: Cyclorrhapha]Superfamily: SyrphoideaFamily: Syrphidae SAMOUELLE, 1819 (hoverflies or flower flies, Schwebfliegen)Subfamily: Syrphinae SAMOUELLE, 1819Tribus: Bacchini Genus: Melanostoma SCHINER, 1860[det. johnes81, 2017, based on this photo via diptera.info]Melanostoma scalare FABRICIUS, 1794 (Matte Schwarzkopf-Schwebfliege)[det. Stephane Lebrun, 2017, based on this photo via diptera.info]Central Germany, N-Hesse: vic. Kassel (Brasselsberg) ca. 400m asl., 21.05.2015IMG_6506