Trichosia (Trichosia) caudata (Walker, 1848)

Material examined.

JAPAN • 1 ♂; Honshu, Hyogo Pref., Yabu, Mt. Hyounosen, mixed forest dominated by Fagus crenata and bamboo grasses; 35°21'N, 134°31'E; alt. 1200 m; 28 Sept. 1995; M. Jaschhof and T. Yagi leg., sweep-net; SDEI .

Remarks.

Trichosia caudata was originally described by Fabricius (1794) in the fly genus Rhagio ( Rhagionidae) and later classified by himself as ‘ Sciara morio ’ in the family Sciaridae (Fabricius 1805) . Heller et al. (2016) found that the female lectotype of Rhagio morio Fabricius belongs to Sciara hemerobioides Scopoli, 1763, so that the name Rhagio morio Fabricius sank into synonymy and the next available name, ‘ caudata Walker, 1848 ’, was reinstated for this Trichosia species. Trichosia caudata (Walker) is common and widespread in Europe (Menzel and Mohrig 1997), but has only rarely been found in East Asia. Sasakawa (1993, 2003, 2014) recorded an adult specimen from Japan as ‘ Bradysia morio ’ (1993) and ‘ Trichosia morio ’ (2003, 2014) which visited a Naematoloma mushroom in Kyoto Prefecture. In this study, we examined one male collected in Hyogo Prefecture.