Scapanoclypeus

Sehnal, Richard, 2017, Scapanoclypeus bicoloratus new species from Hardap, Namibia (Coleoptera: Scarabaeidae: Melolonthinae: Tanyproctini), Zootaxa 4247 (5), pp. 593-598 : 597-598

Key to species of Scapanoclypeus (modified from Sehnal 2013, 2014)

1 Protibia with inner subapical spur..................................................................................................................................................... 2

- Protibia without inner subapical spur............................................................................................................................................... 3

2 Clypeus without punctures, protibial teeth long, apical tooth distinctly separated from middle tooth........ S. sinepunctatus Sehnal

- Clypeus with double punctures, protibial teeth short and evenly spaced................................................................ S. hardap Sehnal

3 Protibia bidentate or appearing bidente............................................................................................................................................. 4

- Protibia tridentate ............................................................................................................................................................................. 7

4 Clypeus punctate............................................................................................................................................................................... 5

- Clypeus impunctate.......................................................................................................................................................................... 6

5 Clypeus with a large, central, round disc; elytra monochromatic reddish brown; protarsi, mesotarsi, and metatarsi testaceous....... ............................................................................................................................................................................ S. triapicalis Sehnal

- Clypeus without a large central round disc; elytra bicolored, disc yellowish brown, with brownish-black margins; protarsi and mesotarsi testaceous, metatarsi reddish brown........................................................................................ S. bicoloratus new species

6 Clypeus testaceous, shiny..................................................................................................................................... S. testaceus Evans

- Clypeus piceous, dull, alutaceous.......................................................................................................................... S. aberrans (Frey)

7 Clypeus with divergent projections when viewed anteriorly................................................................................. S. cornutus Evans

- Clypeus without divergent projections when viewed anteriorly ...................................................................................................... 8

8 Medial clypeal projection narrowly acuminate, connected with transverse frontal carina by a longitudinal carina. ........................ .............................................................................................................................................................................. S. carinatus Evans

- Medial clypeal projection broadly acuminate, without a frontal longitudinal carina ....................................................................... 9

9 Clypeus moderately setigerously punctate; head piceous, pronotum and elytra fulvous; male genitalia with parameres showing basal line of fusion; length 7.5–9.0 mm. ...................................................................................................... S. aulacocoleatus Evans

- Clypeus sparsely setigerously punctate; head and pronotum dark, elytra fulvous; male genitalia without basal line of fusion; length 6.5–8.0 mm............................................................................................................................................... S. brunneus Evans