Madecorphnus simplex 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 : 1106-1107

Madecorphnus simplex Frolov , sp. nov.

( Figure 15 , 25 , 31 )

Type material

Holotype, male. Ambatofitorahana, 1800 m, 31.XII.1972, A. Peyrieras leg ( MNHN).

Description

Holotype, male. Body length 5.5 mm. Colour reddish brown.

Right mandible 1/5 longer than left, without tooth behind 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, sparsely punctate (punctures separated by about five 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, sparsely 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 calli. Elytra sparsely punctate except for a few relatively large punctures.

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 shorter than three tarsomeres in posterior legs. Posterior femora with a few pectinate setae on the inner side apically.

Aedeagus. Parameres rounded apically (in lateral view), with small teeth laterally ( Figure 15 ). Internal sac with one long, spur-shaped sclerite and three small, toothshaped sclerites ( Figure 25 ).

Diagnosis

This species can be separated from other Madecorphnus species by the distinct shape of its parameres and the internal sac armature.

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.

Figures 20–30. Madecorphnus spp., schematic representation of invaginated internal sac of aedeagus with armature. (20) M. falculoides; (21) M. montreuili sp. n.; (22) M. pauliani sp. n.; (23) M. punctatus sp. n.; (24) M. dentatus sp. n.; (25) M. simplex sp. n.; (26) M. falcatus; (27) M. falciger; (28) M. brunneus sp. n.; (29) M. perinetensis sp. n.; (30) M. peyrierasi sp. n. Note: Not to scale.