Macrodactylini

Fuhrmann, Juares, 2012, Compsodactylus, a new South American genus with one new species and two new combinations (Coleoptera: Scarabaeidae: Melolonthinae), Zootaxa 3577 (1), pp. 43-57 : 45

Addendum to the key for Macrodactylini genera

The key to Macrodactylini genera by Katovich (2008) should be modified as following in order to include Compsodactylus . See Smith (2008) and Katovich (2011) for other modifications to that key.

12(11). Prementum flattened; pygidium distinctly subtriangular in shape; small, elongate beetle (5.2–5.7 mm in length)......................................................................................... Pristerophora Harold

[12’]. Prementum medially grooved; pygidium variable in shape, if subtriangular then never a small, elongate beetle (except in female Compsodactylus ).......................................................................... 12b

12b(12). Anterior area of frons with denticle-like setae; pronotal posterior margin bordered ( Fig. 3 ); elytra external and internal margin bordered; small beetles (5.5–8.0 mm in length).................................... Compsodactylus Fuhrmann

[12b’]. Without the previous character combination............................................................ 13

Figures

FIGURES 1 – 9. 1, 2, 4, Compsodactylus martinezi male habitus (dorsal, lateral, head dorsolateral); 3, C. martinezi female habitus (lateral; arrow shows the posterior margin bordered); 5, 6, C. parvulus holotype female habitus (dorsal, lateral); 7, 8, C. scabrosus holotype male habitus (dorsal, lateral); 9, C. scabrosus female habitus (lateral).