Quadrideres simplicipes

Kamiński, Marcin Jan, 2015, A taxonomic revision of the Quadrideres simplicipes species-group (Coleoptera: Tenebrionidae: Pedinini), including description of a new species from Tanzania, Zootaxa 3986 (2), pp. 217-226 : 224

Key to the species of the Q. simplicipes species-group

1 Inner contours of male protibae with conspicuous postmedian dilatation.................................................................................................... Q. interioris species-group (see Kamiński 2013a: 93)

- Inner contours of male protibae without postmedian dilatation................................................ (2)

2 Secondary intervals and epipleurae of elytra with fine punctures......... Q. scutatus species-group (see Koch 1956: 192)

- Secondary intervals and epipleurae of elytra with coarse punctures.................. Q. simplicipes species-group... (3)

3 5th abdominal ventrite without margin (Fig. 10)............................................................ (4)

- 5th abdominal ventrite with complete margin (Fig. 9).............................................. Q. simplicipes

4 Pronotal base with strong lateral indentations (Fig. 7). Emargination of pronotal base interrupted laterally (Fig. 7). Pronotum widest at 0.75 of its length (Fig. 7)...................................................... Q. kazimierzi sp. nov.

- Pronotal base with fine lateral indentations (Fig. 8). Emargination of pronotal base complete (Fig. 8). Lateral sides of pronotum widest at the base … (5)

5 Protibae with shallow distal cavity on the inner side. Punctuation on the head, pronotum and elytra coarse. Body size: 10.0– 12.0 mm..................................................................................... Q. robynsi

- Protibae with relatively deep distal cavity on the inner side (Fig. 11). Punctuation on the head, pronotum and elytra relatively fine. Body size: 8.5–10.5 mm ................................................................. Q. parallelus