Lathrolestes fumipennis sp. nov.

Figs 8–13.

Diagnosis. This species differ from the closely related L. bipunctatus and L. pictilis by infuscate wings, short propodeum with vertical hind part (Fig. 13), distinct sparse punctures of lower part of mesopleuron (Fig 11), enlarged 5th article of tarsus, short first metasomal tergite, ovipositor straight and thin, very gradually tapered from base to apex, without notch (Fig. 10).

Description. Female. Body length 4 mm. Antenna with 24 flagellomeres. Scape 0.58 × as lomg as wide. Head slightly narrowed behind the eyes, shining, face with distinct puncntures (Fig. 8). Maximum length of temple 0.82 × transverse eye diameter; minimum length of temple 0.68X transverse eye diameter. Face 1,12 × transverse eye diameter; in dorsolateral profile convex, medially not bulging; setose. Clypeus separated by distinct groove; at apex projecting slightly anteriorly; distinctly, sparsely and deeply punctate, setose. Apical margin of clypeus obtuse. Tentorial fossa not large and elongate. Malar space 0.45 × of basal mandible width. Occipital carina medially complete. Lower mandible tooth longer than upper.

Notaulus distinct. Mesopleuron shining, distinctly and sparsely punctate in lower part (Fig. 11). Tarsi with apical article not enlaged. Claws pectinate (Fig. 12). Fore wing with Radius intercepting stigma at its middle. Areolet small, petiolate. Second recurrent vein with a single bulla. Nervellus intercepted below middle. Nervulus slightly postfurcal. Propodeum with carinae complete (Fig. 9).

Metasoma shining. First metasomal tergite as wide as long; without shallow median longitudinal impression; bordered by lateral longitudinal carinae; dorsal longitudinal carinae defined at base. Second metasomal tergite transverse. Ovipositor straight and thin, very gradually tapered from base to apex, without notch (Fig. 10).

Color. Female. Body brown (Fig. 13); Wings fulvous. Legs reddish-yellow; base of antenna, tegulae yellowish; metasomal tergite brownish.

Material: Holotype female, Russia, Primorskiy Karay, Khanka Lake, Novokachalinsk, 7.ix.1978, D.R. Kasparyan, (ZIN); Paratypes: 6 females and 2 males, Russia, Primorskiy Karay, Khanka Lake, Novokachalinsk, 7.ix.1978, D.R. Kasparyan; 1 female, Russia, Primorskiy Kray, 30 km NW Spassk, 26.viii.1981, S.A. Belokobylskij; 1 male, Russia, Kunashir, 2 km NE Tretiakovo, 08.viii.1986, Budris. (all in ZIN).

Distribution: Far East of Russia.

Etymology: The species epithet, fumipennis, refers to the coloration of wings.