Dolichomitus sirenkoi Varga, 2012

Varga, O., 2014, New Data On The Genus Dolichomitus Hymenoptera, Ichneumonidae, Pimplinae) In The Ukrainian Carpathians, Vestnik Zoologii 48 (4), pp. 325-332 : 326-327

Dolichomitus sirenkoi Varga, 2012 ( fig. 1 )

M a t e r i a l. Ukraine: Ivano-Frankivsk Region: Bogorodchany District, Mochary , 48°50´51.17˝ N ,

24°35´26.91˝ E, 300–350 m, mixed forest, 5 km NE of Bogorodchany, 1.05.2012, 1 Ơ (Varga).

D e s c r i p t i o n. M a l e. Fore wing 10 mm long. Mesosoma 4 mm and metasoma 13 mm long. Mandible with lower tooth a little longer than upper tooth. Width of base of mandible about 3.5 times malar space. Flagellum with 32 segments and as long as mesosoma + tergites 1+2. All segments of flagellum elongate. In lateral view gena about 1.1 times transverse diameter of compound eye. In dorsal view temples widening behind the eyes. Vertex with some scattered punctures behind the ocelli. Distance between compound eye and ocellus about 1.6 times diameter of an ocellus. Distance between hind ocellus and occipital carina about 2.9 times diameter of hind ocellus. Head rather polished. Face punctate, distance between punctures 1–2 times their diameter. Gena and vertex with some widely scattered punctures. Mesoscutum shiny with strong notauli in anterior third. Mesoscutum and scutellum with fine scattered punctures. Epicnemial carina rather weak, reaching upper quarter of mesopleuron and not reaching front of mesopleuron. Mesopleuron with scattered punctures, edges of punctures blurred. Propodeum rugulopunctate with median dorsal carinae about 0.6–0.7 times as long as propodeum ( fig. 1, 1 ). Fore trochanter and trochantellus punctate, polished ( fig. 1 , 2). First tergite about 2.1 times as long as wide at apex, second tergite about 1.6 times as long as wide. Median raised part of first tergite almost impunctate at base, rugulose centrally and closely punctate at apical 0.2. Lateral part of first tergite rather rugulose. Second tergite with strong antero-lateral furrows, densely punctuate and slightly transversely wrinkled, at the centre punctures almost touching one another ( fig. 1 , 5). Tergites from 3 to 6 entirely transversely aciculate. Hypopygium slightly incised. Valve ( fig. 1 , 3). Nervellus broken at upper third.

Рис. 1. Dolichomitus sirenkoi , Ơ: 1 — проподеум (вид сверху); 2 — передний трохантер и трохантеллюс (вид снизу); 3 — вальвы (вид сбоку); 4 — голова и грудь (вид сбоку); 5 — первый и второй тергиты брюшка (вид сверху).

C o l o r a t i o n. Head, mesosoma and metasoma black. Palpi yellowish. Mandibles black. Tegula yellow. Pterostigma fuscous. Legs: fore and mid coxae red-yellowish with basal 0.2 black, hind coxae black; fore trochanters and trochantelli yellowish, mid trochanters and trochantelli red-yellowish, hind trochanter red and trochantelli yellow; all femora red, hind femur fuscous at the apical 0.2, fore and mid tibia and tarsus yellow, hind tibia fuscous and cream at base, tarsus fuscous. Upper hind angle of pronotum yellowish.

D i a g n o s i s. Male of D. sirenkoi differs from D. curticornis (Perkins, 1943) in the shape of the valve, number of flagellomeres and coloration of legs. The main differences with D. quercicolus are in the length of flagellum, coloration of hind legs and in the shape of the valve (see table 1).

Figures

Fig. 1. Dolichomitus sirenkoi, Ơ: 1 — propodeum (dorsal view); 2 — fore trochanter and trochantellus (ventral view); 3 — valve (lateral view); 4 — head and mesosoma (lateral view); 5 — first and second tergite of metasoma (dorsal view).