Key to species of Trichoderes

1. Body mostly blackish; pronotum glabrous; metathorax glabrous (Figs 12, 19). Guatemala ....... T. cylindroida (Bates, 1884)

- Body not mostly blackish; pronotum pubescent; metathorax pubescent (e.g. Figs 1–3)............................... 2

2(1). Elytra finely punctate in both sexes (Figs 7–8); males with abundant decumbent setae on elytra (Fig. 7). Honduras .............................................................................................. T. cristiani sp. nov.

- Elytra coarsely punctate and with rare setae in both sexes (Figs 9–11)............................................ 3

3(2). Elytra rugose; sutural angle of elytra without spine (Figs 11, 17–18). Mexico (Tamaulipas) and Guatemala .................................................................................................. T. rugosa Bates, 1884

- Elytra not distinctly rugose; sutural angle of elytra with spine (Figs 9–10, 13–16). Mexico (Durango, Hidalgo, Mexico, Michoacán, Morelos, Nuevo León, Puebla, Jalisco, and Veracruz) and Guatemala ................. T. pini Chevrolat, 1843

Note: The citation of T. pini from Honduras by Turnbow et al. (2003) probably was a misidentification of T. cristiani sp. nov.