Dicranoptycha Osten Sacken

• Main Authors: Podenas, Sigitas, Byun, Hye-Woo, Kim, Sam-Kyu
• Format: Text
• Language: unknown
• Published: Zenodo 2015
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Diptera; Limoniidae; Dicranoptycha; Sakhalin
• Online Access: https://dx.doi.org/10.5281/zenodo.6096190; https://zenodo.org/record/6096190

Dicranoptycha Osten Sacken Marginomyia Meigen, 1818 ( nomen nudum ). Dicranoptycha Osten Sacken, 1859: Lackschewitz & Pagast (1942); Ishida (1959); Savchenko & Krivolutskaya, 1976; Savchenko (1982, 1983, 1989). Type species— Dicranoptycha germana Osten Sacken, 1859. Korean short-palped crane flies, belonging to genus Dicranoptycha Osten Sacken, 1859 are comparatively large, with a wing length ranging from 8.0 to 11.5 mm (Fig. 1). Main body color varies from gray to brown and light brown, sometimes even brownish yellow (Fig. 2). Antennal flagellum 14 -segmented. Distinct tubercular pits situated some distance beyond frontal margin of thoracical prescutum, pseudosutural fovea close to them (Fig. 3). Wing long, grayish or brownish, sometimes darkened along longitudinal veins. Stigma indistinct. Vein Sc long, tip of Sc 1 reaches distinctly beyond branching point of Rs , Sc 2 close to Sc 1 tip. Arculus present. Cross-vein R 2 close to R 1 tip. Radial sector ( Rs ) comparatively short and could be variable even in same species. It is usually slightly arched, but could be also angulated and short-spurred at base. It branches into two veins R 2 + 3 and R 4 + 5 . Discal cell closed, elongate. Basal deflection of CuA 1 distinctly beyond branching point of M , usually before mid-length of discal cell. The most distinctive feature of the genus is fold in cell cu (Fig. 4), which is not known in other genera of Limoniidae. Meron is strongly reduced, thus second and third pairs of coxae are close together. Male genitalia slightly elongate. Ninth tergite and ninth sternite forming complete genital ring. Posterior margin of ninth tergite with large shallow median incision. Lateral process of lateral apodeme of vesica large. Two pairs of terminal gonostyli. Outer gonostylus usually dark, strongly sclerotised and slightly arched. Inner gonostylus wide and fleshy. Edeagal complex usually strongly complicated and species-specific. Ovipositor with comparatively short, widened, round-tipped cercus. Some non-Korean species have modified and widely spread cerci. Korean Dicranoptycha start flying comparatively late, from the middle of June, but they are most active in late summer and fall. Larvae are metapneunistic, developing in soil under leaf litter or wood debris (Young, 1987). : Published as part of Podenas, Sigitas, Byun, Hye-Woo & Kim, Sam-Kyu, 2015, New Dicranoptycha Osten Sacken, 1859 Crane flies (Diptera: Limoniidae) of North and South Korea, pp. 257-270 in Zootaxa 3925 (2) on page 259, DOI: 10.11646/zootaxa.3925.2.7, http://zenodo.org/record/240932 : {"references": ["Meigen, J. W. (1818) Systematische Beschreibung der bekannten europaischen zweiflugeligen Insekten. Aachen, 333 pp.", "Osten Sacken, C. R. (1859) New genera and species of North American Tipulidae with short palpi, with an attempt at a new classification of the tribe. Proceedings of the Academy of Natural Sciences of Philadelphia, 197 - 254.", "Lackschewitz, P. & Pagast, F. (1942) 16. Limoniidae. In: Lindner, E. (Ed.), Die Fliegen der palaearktischen Region, 3 (5), Lief. 145, 33 - 64.", "Ishida, H. (1959) The catalogue of the Japanese Tipulidae, with the keys to the genera and subgenera, 4. Limoniinae, Tribe Pediciini. Science Report of the Hyogo University of Agriculture, Serie Natural Sciences, 3 (2), 37 - 42.", "Savchenko, E. N. & Krivolutskaya, G. O. (1976) Limoniidae of the south Kuril Islands and south Sakhalin. Kiev, 160 pp. [in Russian]", "Savchenko, E. N. (1982) Komari - limonijidi [Limoniid - flies], (subfamily Eriopterinae). Fauna Ukrajiny, 14 (3), 1 - 335. [in Ukrainian]", "Savchenko, E. N. (1983) Limoniidae of South Primorye. Kiev, 156 pp. [in Russian]", "Savchenko, E. N. (1989) Limoniid crane flies of the USSR fauna. Kiev, 378 pp. [in Russian]", "Young, C. W. (1987) A revision of the crane fly genus Dicranoptycha in North America. Kansas University Science Bulletin, 53, 215 - 274."]}