Trichotichnus Morawitz, 1863

Kataev, B. M., 2020, Description of a new subgenus of Trichotichnus (Coleoptera: Carabidae), with two new species from the Western Ghats (India), and remarks on other subgenera, Zoosystematica Rossica (China) 29 (2), pp. 172-194 : 174

Genus Trichotichnus Morawitz, 1863

Diagnosis. Head in most members with fronto-ocular furrows (in some species indistinct or only traces visible). Mentum fused or not fused with submentum, with developed median tooth and narrow epilobes. Paraglossae glabrous. Ligular sclerite with two ventral setae near apex, its apical margin more or less straight and outer angles not markedly lobed. Pronotum bordered along apical and basal margins; basal edge not ciliate. Elytra glabrous (with at most very fine and sparse setae on lateral intervals apically), smooth or punctate, in most species with one discal setigerous pore on interval 3; intervals 5 and 7 without discal pores. Elytral intervals smooth or with microsculpture consisting of transverse meshes or lines. Protibia only slightly widened apically, its outer margin with one to four (usually two or three) preapical spines; apical spur slender, not dentate at margins. Metafemur with two (rarely three) setigerous pores at posterior margin. Tarsi glabrous or setose. Metatarsomere 1 elongate, about as long as or slightly shorter than metatarsomeres 2 and 3 combined. Male pro- and mesotarsi with ventral adhesive vestiture biseriate. Abdominal sternites mostly without extra setae, in some species with very fine and short setae medially. Laterotergite with one to five setae or small spines apically; gonosubcoxite with one to three preapical spines or setae; gonocoxite with or without one or two setae or small spines on ventral and dorsal outer edges. Median lobe of aedeagus with apical orifice in dorsal position or shifted to left, with or without apical capitulum.