Key to species of Trichodromeus of Nepal

1 Anterior angles of distinctly transverse pronotum slightly protruded apicad. Elytra significantly widened posteriad. Apical part of median lobe strongly protruded apicad (Fig. 5). Body length: 4.50–5.60 mm. Body reddish-brown. Habitus as in Fig. 1............................................................................................ T . acutipenis

- Anterior angles of moderately narrow pronotum not protruded apicad. Elytra slightly widened posteriad. Apical part of median lobe shorter......................................................................................... 2

2 Elytra about as broad as long. Apex of median lobe moderately large, rounded, without excision; parameres slightly exceeding apex of median lobe (Fig. 7). Body larger: 5.35–7.60. Body brown to black. Habitus as in Fig. 2............... T . jaegeri

- Elytra slightly longer than broad. Apex of median lobe small, with narrow excision; parameres significantly exceeding apex of median lobe (Fig. 9). Body smaller: 5.00 mm. Body reddish-brown. Habitus as in Fig. 3.................... T . kaliyuga