Uwagi na temat biologii, systematyki i rozmieszczenia Scoliocentra (Leriola) nigrinervis (WAHLGREN, 1918) w Polsce i Europie (Diptera: Heleomyzidae)

New records of Scoliocentra (Leriola) nigrinervis (Wahlgren, 1918) from the snow in Poland and Romania are given; geographical distribution and biology of the species are annotated. Based on the material examined, the species is compared with other European Scoliocentra of the nigrinervis species group, and the systematic position and diagnostic characters of adults are illustrated and discussed. A key to European species of the subgenus Leriola is also given.