Borolinus

Wu, Jie & Zhou, Hong-zhang, 2006, Description Of A New Species Of Borolinus Bernhauer (Coleoptera: Staphylinidae: Osoriinae) From Yunnan, China, With Two New Records From Southern China, Raffles Bulletin of Zoology 54 (2), pp. 215-223 : 216

Key to species of Borolinus from China

1. Head with one pair of divergent inner lateral teeth, outer lateral teeth absent .............................................. B. semirufus Fauvel

- Head with one pair of parallel inner lateral teeth and one pair of triangular outer lateral teeth .................................................... 2

2. Mandible with only one inner tooth behind apical tooth ....... 3

- Mandible with two inner teeth behind apical tooth ................. .................................................................. B. minutus Laporte

3. Pronotum and elytra red; clypeus medially with one pair of long setae .................................................. B. bisetifer , new species

- Pronotum and elytra black; clypeus medially with two pairs of long setae .............................................................................. 4

4. Vertex not sulcate; smaller size (12-14 mm) ........................... ......................................................... B. sikkimensis Bernhauer

- Vertex medially sulcate; larger size (18-22 mm) ..................... ................................................ B. dietmarleutzi Schillhammer