Mallotarsus Blanchard, 1850

Fuhrmann, Juares & Vaz-De-Mello, Fernando Z., 2017, Macrodactylini (Coleoptera, Scarabaeidae, Melolonthinae): primary types of type species and taxonomic changes to the generic classification, European Journal of Taxonomy 350, pp. 1-71 : 36

Mallotarsus Blanchard, 1850

Type species

Mallotarsus spadiceus Blanchard, 1850 (designation: monotypy).

Diagnosis

Protibia with three external teeth and with a spur; mesotarsomere I with an internal hook-like tooth ( Fig. 13 C ); metafemur with a ventral row of denticle-like setae ( Fig. 13 H ); tarsomere IV with an internodistal small tooth ( Fig. 13 H ); abdomen with intersegmental membrane VII–VIII exposed.

Remarks

Males of Mallotarsus have mesotarsomere I with a hook-like tooth similar to that found on Pseudoserica and part of Dicrania (e.g., D. ebenina Blanchard, 1850 ). Mallotarsus is distinguished as follows (opposition to 1, Dicrania ; 2, Pseudoserica ): pronotal posterior margin straight (1, as Mallotarsus ; 2, margin with two lateromedial teeth projected between anterior elytron-scutellum contact, Fig. 13 A ), protibia with three external teeth and a spur (1, with two external teeth and without spur; 2, with 1–3 external teeth and with or without spur).

Figures

Fig. 13. ♂♂. A. Head–prothorax dorsal, tarsus rotated laterally to apex. B–C. Mesotibia−tarsus (C, with details of tarsomere I and IV). D−G. Aedeagus (lateral, parameres apex). H. Metafemur. A–B, D–E. Pseudoserica marmorea Guérin-Méneville, 1831. C, F−H. Mallotarsus spadiceus Blanchard, 1850. Scale bars = 1 mm.