Trichoreninus

Tishechkin, Alexey K. & Cárdenas, Alida Mercado, 2012, Description of three new species of Nymphistrini (Coleoptera: Histeridae: Haeteriinae) from Central America, Zootaxa 3500, pp. 36-48 : 41

Key to the Central American species of Trichoreninus

1. Dorsal surface with abundant distinct setae; inner subhumeral and dorsal elytral striae 1–2 distinctly keeled; outer and posterior parts of elytral surfaces with irregularly rugose microsulpture; disc of metaventrite without large punctures (Figs. 42–44 in Tishechkin 2007)................................................................... T. flohri ( Lewis, 1891)

- Dorsal surface completely asetose; subhumeral and dorsal elytral striae not elevated, striate or sulcate; surfaces without irregularly rugose microsulpture; disc of metaventrite at least with a few large punctures................................. 2

2. Dorsal elytral striae sulcate, wide and deep; disc of metaventrite medially without or with a few (2–6) large deep circular punctures along midline, often asymmetrically positioned................................................ T. neo sp. n.

- Dorsal elytral striae regular, narrow and punctatostriate; disc of metaventrite with numerous (more than 10) smaller, circular, relatively shallow punctures, regularly scattered over the most of disc surface...................................... 3

3. Body surface regularly covered with small dense background punctures; outer lateral striae of pronotum interrupted and/or abbreviated in posterior half, known from Belize and Honduras.................................... T. carltoni sp. n.

- Body surface without distinct background punctuation, sometimes tiny background punctures present on pronotum and sterna, elytral surface smooth, alutaceous; outer lateral striae of pronotum complete, reach posterior angles, known from Nicaragua to Panama.................................................................. T. geminus ( Reichensperger, 1935)