Lathrolestes Förster

Reshchikov, Alexey V., Soper, Anna & Van, Roy G., 2010, Review and key to Nearctic Lathrolestes Förster (Hymenoptera: Ichneumonidae), with special reference to species attacking leaf mining tenthredinid sawflies in Betula Linnaeus (Betulaceae), Zootaxa 2614, pp. 1-17 : 3-4

Lathrolestes Förster

Lathrolestes Förster, 1869: 196 . Type-species: Tryphon clypeatus Zetterstedt. Camporychus Förster, 1869 . Type-species: Lathrolestes marginatus Thomson ; Culmina Benoit, 1955. Type-species: Culmina ruwenzorica Benoit;

Ecclinops Förster, 1869. Type-species: Tryphon orbitalis Gravenhorst ;

Homalomma Förster, 1869. Type-species: Homalomma caliroae Rohwer ; Laphyroscopus Förster, 1869. Type-species: Tryphon gorskii Ratzeburg ;

Lathrolestus Thomson, 1883 . Type-species: Lathrolestus clypeatus Zetterstedt Luphyroscopus Thomson, 1883 . Type-species: Luphyroscopus gorskii Ratzeburg Ritzemabosia Smits van Burgst, 1912. Type-species: Ritzemabosia meridionalis Smits van Burgst; Tryphonopsis Brauns, 1898. Tryphonopsis ensator Brauns

Diagnosis. Small to medium sized species, 4.0– 7.5 mm. Occipital carina not intercepting hypostomal carina. Clypeus profile flat, its apical margin thick. Mandibles with lower tooth distinctly longer than the upper. Areolet petiolate, oblique. Second recurrent vein with a single bulla. Nervellus intercepted below or at its middle. Tarsal claws pectinate, with 1 or 3 teeth or with basal lobe. Glymmae deep. Apex of subgenital plate of male not incurved on hind margin. Tip of aedeagus somewhat decurved and swollen, its apex rounded. Ovipositor sheath 0.5 to 1.5 as long as metasomal height.