Calodactylus 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 : 22-23

Calodactylus Blanchard, 1850

Type species

Calodactylus tibialis Blanchard, 1850 (designation: monotypy).

Diagnosis

Prosternum with an anterior longitudinal carina; protibia with two teeth and with a spur; meso- and metatibiae medially enlarged ( Fig. 7 E ); meso- and metatarsal claws simple; male ventrite VI with two parallel and setose carina ( Fig. 7 B ).

Remarks

The genera Calodactylus and Dasyus LePeletier de Saint-Fargeau & Audinet-Serville, 1828 are similar to each other. They can be distinguished by enlargements of the meso- and metatibiae, Calodactylus have a medial enlargement whereas Dasyus have medial and distal areas of the same width. An evident characteristic of these genera is the simple meso- and metatarsal claws, which also occurs in male Pectinosoma Arrow,1913 and some species of Ancistrosoma , Barybas , Ceraspis and Faula .

Figures

Fig. 7. Calodactylus tibialis Blanchard, 1850. A. Male habitus, lateral (without some appendages). B. Male abdomen lateroventral detail. C–D. Aedeagus (lateral, parameres apex). E. Metatibia. Scale bars = 1 mm.