Diogma dmitrii Paramonov, 2005

Kolcsar, Levente-Peter, Paramonov, Nikolai, Imada, Yume, Kato, Daichi, Gamboa, Maribet, Shinoka, Dai, Kato, Makoto & Watanabe, Kozo, 2022, Notes on the taxonomic status and distribution of some Cylindrotomidae (Diptera, Tipuloidea), with emphasis on Japanese species, ZooKeys 1083, pp. 13-88 : 13

Diogma dmitrii Paramonov, 2005

Figs 17 , 18

Non-type material examined.

Russia • 1 ♂; Krasnodar Krai [Republic of Adygea, Maykopsky District], Khamyshki, Lagonaki Plateau; 44.009°N, 39.994°E; alt. 1700 m; 11 Jun. 2012; N.E. Vikhrev leg.; CKLP. • 1 ♀; Krasnodar Krai, Apsheronsky District, Mezmay Settlement, Kamyshanova polyana, Mezmaika River; 44.16989°N, 40.05180°E; alt. 1200 m; 13 Jun. 2004; N.M. Paramonov leg.; CKLP.

Supplementary description.

Male terminalia: Medium sized and relatively simple, directed caudally. Tergite 9 fused with gonocoxite (Fig. 17C ). Tergite 9 posterior margin convex in dorsal view (Fig. 17A ), lateral lobe very small, triangular, ~ 1/4 ×total length of tergite 9 in lateral view (Fig. 17C ); covered with relative long setae; posterior margin of tergite 9 with subhyaline, ventrally directed plate, next to lateral lobe; shape approximately triangular, covered with short pale setae (Fig. 17A ). Sternite 9 fused with tergite 9 and gonocoxites, present as a narrow but continuous ring (Fig. 17A-C ). Gonocoxite longer than tergite 9 in lateral view. Ventral lobe of gonocoxite well visible, without deep separation from gonocoxite (as in D. caudata and D. glabrata ); inner half pale, partly membranous, covered by long pale hairs (Fig. 17B ); apical lobe very small, mostly bare; inner part of gonocoxite forming a plate with hairs on all surface (Fig. 17D ). Membranous area between gonocoxites reach base of ventral lobe (Fig. 17B ). Gonostylus simple, without lobe in inner side; claw-like in lateral view (Fig. 17D ); widened in middle length in caudal view (see Fig. 17E, F from different angles), with small, rounded bulge in inner ventral base (Fig. 17E ). Sperm pump and ejaculatory apodeme large, partly covered by paramere in lateral view (Fig. 17I ). Dorsal lobe between interbases dorso-ventrally flattened, posterior margin almost straight, covered by dense short hairs (Fig. 17G, I ); interbase simple, with a few hairs, curved dorsally, without ventral projection, (Fig. 17I ). Aedeagus bifid, branches short, slightly curved dorsally; base wide, evenly narrowing to tip in lateral view (Fig. 17I ).

Female terminalia: Brown, tip of cercus and hypopygial valve yellowish brown. Tergite 8 separated at middle by membranous area (Fig. 18A ). Tergite 8 larger than tergite 9 in lateral view (Fig. 18B ). Ventral corner of tergite 9 not rugged, with few hairs (Fig. 18B ). Triangular sclerite separated from tip of tergite 10, but close situated (Fig. 18A ). Lateral lobes of tergite 10 finger-like with few long hairs (Fig. 18A ). Cercus and hypogynial valve simple, wide, blade-shaped, tips rounded (Fig. 18B ). Dorsal apical surface of cercus rough, formed by few, blunt pyramid teeth (Fig. 18B ). Sternite 8 simple, without transverse creases (Fig. 18B, C ). Two very large, elongated spermathecae present with duct almost straight (Fig. 18D ). Two sperm ducts simple, without any clear markings, genital fork with a rod-shaped median part, posterior part pale (Fig. 18C ).

Distribution.

Russia: North Caucasus (Krasnodar Krai, Karachay-Cherkessia Republic); Georgia, Turkey (Asiatic part: Manisa, Rize, Samsun, Trabzon) ( Oosterbroek 2021).

Figures

Figure 17. Male genital structures of Diogma dmitrii Paramonov, 2005 A terminalia, dorsal view B terminalia, ventral view C terminalia, lateral view D gonocoxite and gonostylus, inner lateral view E shape of the gonostylus, caudal view F shape of the gonostylus, inner dorsal view G aedeagus complex, dorsal view H aedeagus complex, ventral view I aedeagus complex,

Figure 18. Female genital structures of Diogma dmitrii Paramonov, 2005 A Terminalia, dorsal view B terminalia, lateral view C sternite 8, hypogynial valve, genital fork, and sperm ducts, inner dorsal view D Spermathecae.