Review of the genus Eridolius Förster from the Oriental Region (Hymenoptera, Ichneumonidae, Tryphoninae) Author Reshchikov, Alexey text Zootaxa 2018 2018-02-02 4377 3 431 443 journal article 30854 10.11646/zootaxa.4377.3.6 6b67185d-1e5e-414a-acc9-54e613b86464 1175-5326 1164548 6D6FE899-FD79-4DC6-A917-0E465B542E9F Key to Oriental species of the genus Eridolius 1. Metasoma beyond T1 reddish (figs 5, 10, 11, 13, 17).......................................................... 2 - Metasoma entirely black or black with yellow posterior margins of T1 to T7 ( Figs 18, 22 , 29 , 31, 34 )................... 3 2. Upper mandibular tooth longer than lower one ( Fig. 15 ). Malar space 0.5 × as long as basal width of mandible. Face yellow ( Fig. 15 ). Middle and hind coxae, and hind femur black ( Fig. 17 )........................... E. aithogaster Gupta, 1991 - Lower mandibular tooth longer than upper one ( Fig. 3 ). Malar space 0.3 × as long as basal width of mandible. Face black ( Fig. 1 ). Coxae and hind femur reddish (fig. 5)............................................. E. xui Reshchikov , sp. nov. 3. Body entirely black (figs 30–34).......................................................... E. niger Gupta, 1991 - Body mostly black, with yellow colouration (clypeus, mandibles, most of legs and hind margin of T2-7) ( Figs 18–29 )...... 4 4. Lower mandibular tooth just slightly longer than upper one ( Fig. 27 )............................................. 5 - Lower mandibular tooth distinctly longer than upper one ( Fig. 20 )............................................... 6 5. Fore and middle coxae and all trochanters yellow, hind legs reddish except hind tibia, tarsus and apical part of femur brown ( Fig. 29 ). T1 without flanges at glymmas............................................ E. kambaiti Kasparyan, 1998 - All coxae and hind legs entirely black. T1 with weak flanges over glymmas..................... E. sinensis Gupta, 1993 6. Face and lower part of mesopleuron densely and distinctly punctate. Inter-ocellar distance 0.7 × ocellocular distance. Fore and middle coxae and trochanters yellowish-brown......................................... E. clauseni (Kerrich, 1962) - Face and lower part of mesopleuron sparsely and shallowly punctate ( Fig. 20 ). Inter-ocellar distance 0.5 – 0.56 × ocellocular distance. Fore and middle coxae and trochanters whitish-yellow (fig. 22)......................... E. guptai Gupta, 1991