Cheilosia orthotricha Vujić & Claussen, 1994

Examined material. Styria: Graz, Kalsdorf 300 m, 46°58’49’’ N, 15°28’17’’ E, 6.3.2016 (1♂), leg. H. Heimburg, det. D. Doczkal ; Graz, Gratwein-Strassengel, Mühlbachgraben 535 m, 47°08’25’’ N, 15°16’36’’ E, 10.4.2016 (1♂), leg. H. Heimburg, det. D. Doczkal ; Bruck-Mürzzuschlag, Hinteralm 1500 m, 47°43’31’’ N, 15°30’59’’ E, 16.4.2016 (1♂), leg. H. Heimburg, det. D. Doczkal ; Graz, Gratwein-Strassengel, Mühlbachgraben 535 m, 47°08’25’’ N, 15°16’36’’ E, 7.4.2018 (1♂ 1♀), leg. & det. H. Heimburg ; Lower Austria: Scheibbs, Leckermoor 880 m, 47°46’07’’ N, 14°57’38’’ E, 14.4.2018 (1♂), leg. & det. H. Heimburg ; North Tyrol: Sintersbachtal S Kitzbühel, 8.5.1996 (1♂), leg. & det. B. & G. Degen.

Notes. Cheilosia orthotricha, an early spring species, belongs to the Cheilosia canicularis group. The larvae of all three species of this group can be found in Petasites spp. Mill. Records from Austria were found between March and May.At higher altitudes, it might be found also in June and July (Stuke & Claussen 2000). The habitats in which C. orthotricha has been found are diverse, but each of them provides good conditions of the larvae’s forage plants. These habitats range from moist coniferous forests (along gravelled, moisty forest roads) to swamp mixed forests and wet meadows at the edge of raised bogs.