Lathrolestes obliquus, Reshchikov, Alexey, 2012

Reshchikov, Alexey, 2012, Lathrolestes (Hymenoptera, Ichneumonidae) from Central Asia, with a key to the species of the tripunctor species-group, Zootaxa 3175, pp. 24-44 : 33

Lathrolestes obliquus sp. nov.

Figs 18–21 .

Diagnosis. This species differs from the closely related L. buccinator by the oblique areolet; coloration of the legs and metasoma; much shorter first metasomal tergum; and the ovipositor lacking a notch.

Description. Holotype female. Body size 8 mm. Antenna with 33–36 flagellomeres. Scape 0.75X as long as wide. Head not narrowed behind eyes, swollen, matt, with sparse deep punctures. Maximum length of temple 0.83X transverse eye diameter; minimal length of temple 0.58X transverse eye diameter. Face as wide as height of eye; convex, with bulge, with fine deep punctures ( Fig. 20 ). Clypeus separated from face by impression; shining; at apex projecting strongly anteriorly; apical margin of clypeus moderately thick. Clypeal foveae not large. Malar space 0.25X basal mandible width. Occipital carina complete, not interrupted dorsally ( Fig. 19 ). Lower mandible tooth longer than upper.

Mesosoma dimly shining. Notaulus absent. Mesopleuron and mesonotum with fine deep punctures, shining ( Fig. 18 ). Claws pecinate with small teeth. Fore wing with areolet oblique, petiolate. Radius intercepting stigma at its middle. Second recurrent vein intercepted areolet before its middle; with single bulla. Nervellus intercepted at middle. Nervulus interstitial. Propodeal carinae complete.

Metasoma matt, with sparse white hairs. First metasomal tergum width to length ratio 0.8; without median longitudinal impression; bordered by lateral longitudinal carinae; median longitudinal carinae defined at base. Metasomal terga with fine deep punctures. Ovipositor without notch. Male genitalia with parameres slightly surpassing apex of metasoma.

Color. Body mostly black ( Fig. 21 ). Coxae black. Legs and metasomal terga from second reddish ( Fig. 21 ).

Variation. Some specimens have the legs (or legs and metasoma) mostly black.

Material. Holotype female, Turkmenistan, Western Kopetdag, Bogandar ravine, 10 km SW Kara-Kala, 38.30 N, 56.13 E, 21.05.1981, Volkovitch, ( ZIN RAS); Paratypes: 1 male, Kyrgyzstan, Pekemskiy mnt., 1 male and 1 female, Kyrgyzstan, Chatkal riv., 30.05.1963, V.I. Tobias ( ZIN RAS); 1 male, Tajikistan, near by Dushanbe, 14.05.1966, Krzhizhanovsky; 1 male, Kyrgyzstan, Sary-Chelek, Arkit, 1200 m., 15.06.1979, D.R. Kasparyan; 2 males, Uzbekistan, Parkent, 20.05.1980, D.R. Kasparyan; 2 males, 15 km SE Chita, Nikishikha riv., 28.07.1975, D.R. Kasparyan, ( ZIN RAS).

Distribution. Central Asia

Etymology. The species epithet, obliquus , refers to the shape of the areolet.

Figures

FIGURES 18 – 21. Lathrolestes obliquus sp. nov. 18 — mesopleuron; 19 — occipital carina; 20 — face; 21 — habitus.