Heterangaeus Alexander 1925, n. sp.

• Main Authors: Podenas, Sigitas, Podeniene, Virginija, Byun, Hye-Woo
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2015
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Diptera; Pediciidae; Heterangaeus; Sakhalin
• Online Access: https://doi.org/10.5281/zenodo.6100830; http://treatment.plazi.org/id/F71D87D5FFBC856362C2C004FBB5958A

Heterangaeus Alexander, 1925 East Palaearctic genus Heterangaeus Alexander, 1925 has only eight species worldwide (including new species, described in this paper) (Table 2). Two of them have two subspecies each. Three species are known from the continent: H. gloriosus gloriosus , H. mongolicus and H. koreanus n. sp. Remaining species are endemic to Japan. Only H. gloriosus gloriosus has comparatively wide distribution, it is known not only from the continent, but also from Japan and Kuril and Sakhalin islands of Russia. Not much can be said about biology and ecology of these species. Most species are known only from original descriptions and original specimens. Despite H. gloriosus kusunoki , H. palidellus and H . spectabilis were described from females, only ovipositor of H. mongolicus was illustrated (Podenas et.al. 2014). Larva is described only for H. mongolicus . Characteristic morphological details of genus Heterangaeus were described by Alexander (1925), later updated by Alexander (1958), and a key for all species was given in the latter paper. Although half of species were known from females only, and no males were found, it is possible to describe most important structures, which could be used to characterize the genus (updated from Podenas et al. 2014, with addition of features from new species). Wings of all species have distinct spots, sometimes they are cross-banded (at the level of Rs base and at cord). Rs long, mostly angulated and spurred at base, sometimes arched. Vein R2+3 always angulated and short spurred at base. Additional cross-veins in cells r3 , r4 , m1 and m, sometimes also in r1 . Discal cell always present. Cell m1 with or without short stem. Posterior wing margin could be very wavy, with deep incisions at tips of both anal veins and at posterior margin of second anal cell, but usually posterior wing margin smooth like in most crane flies. Wings of most species have large anal angle, but it could be very small due to narrow second anal cell. Antennal flagellum 10–11-segmented. ...