Madecorphnus niger Frolov, 2010

details, Publication, authors, including instructions for, information, subscription, http, www. tandfonline. com, loi & tnah 20, 2010, Revision of the Madagascan genus Madecorphnus Paulian (Coleoptera: Scarabaeidae: Orphninae), Journal of Natural History 44 (17 - 18), pp. 1095-1111 : 1103-1104

Madecorphnus niger Frolov , sp. nov.

( Figures 11 , 31 )

Type material

Holotype, male. Perinet, A. Peyrieras leg., X.1972. Paratype, male: Perinet, A. Peyrieras leg., X.1973 ( MNHN) .

Description

Holotype, male. Body length 5.5 mm. Colour black, mouthparts and legs brown.

Right mandible slightly longer than left, without tooth basad of apex. Labrum trapezoidal, its length about 1/4–1/5 width (in dorsal view).

Clypeus asymmetrical, slightly convex anteriorly, obtuse, with two long and a number of smaller setae. Genae very small, not protruding past eyes. Canthus and frontal suture indistinct. Clypeus slightly depressed in the middle anteriorly, minutely punctate (punctures separated by more than 10 times their diameters).

Pronotum 1.8 times wider than long, widest medially. Margins with relatively wide border, lateral margins with four long setae. Pronotum evenly convex, minutely punctate.

Elytra convex, with distinct humeral and apical calli. Maximum width approximately at basal third. First stria distinct and reaching the apex of elytron, other striae indistinct. Epipleura with long, sparse, brown setae. Base of elytra with border from scutellum to humeral callus. Elytra minutely punctate except for a few relatively large punctures in the middle of each elytron near stria 1.

Anterior tibiae with three outer teeth, lateral margin basad of outer teeth not crenulate. Apex with robust, spur-like seta and a few smaller setae basally. Middle and posterior legs similar in shape. Longer tibial spur as long as two basal tarsomeres in middle legs and as long as three tarsomeres in posterior legs.

Aedeagus. Parameres curved and rounded in lateral view, without teeth but with concavities laterally ( Figure 11 ).

Variation

The paratype differs from the holotype in slightly larger size (body length 5.7 mm), paler coloration, and longer right mandible.

Diagnosis

This species can be separated from other Madecorphnus species by the shape of the parameres and from many species also by darker colour of the body.

Figures

Figure 31. Madecorphnus spp., distribution map.

Figures 1–19. Madecorphnus spp. (1) Habitus and scheme of chaetotaxy; (2–7) head; (8–19) aedeagus in lateral view and parameres in dorsal view. (1, 9) M. montreuili sp. n.; (2, 12) M. punctatus sp. n.; (3, 8) M. falculoides; (4, 10) M. pauliani sp. n.; (5, 14) M. falcatus; (6, 18) M. perinetensis sp. n.; (7, 19) M. peyrierasi sp. n.; (13) M. dentatus sp. n.; (15) M. simplex sp. n.; (16) M. falciger; (17) M. brunneus sp. n. Note: Scale for Figures 8–19.