Pentodon algerinus tchadensis Paulian, 1954

Bunalski, Marek & Śmiełowski, Jan, 2020, Review of African Species of the Genus Pentodon Hope, 1837 (Coleoptera: Scarabaeidae: Dynastinae: Pentodontini), The Coleopterists Bulletin 74 (3), pp. 547-554 : 550

Pentodon algerinus tchadensis Paulian, 1954

Pentodon algerinus tchadensis Paulian 1954: 1158 .

Morphology. Length 18–22 mm. Body strongly convex, black and shiny. Clypeus rounded, densely and coarsely punctate; anterior edge equipped with two distinct teeth separated by an impression, lateral edges outlined with carina. Frontoclypeal suture raised, convex, with distinct tubercle in the middle. Frons punctured more deeply and less densely than clypeus; vertex smooth posteriorly. Pronotum carinate along lateral edges. Disc of pronotum distinctly and moderately densely punctate, decreasing posteriorly. Punctures near anterolateral angles of pronotum denser and forming weakly wrinkled sculpturing. Scutellar shield triangular, impunctate. Striae of elytra flat, outlined with rows of punctures. Interstriae punctured shallowly but distinctly. Pygidium semicircular, strongly convex, finely and densely punctate, less densely toward apex.

Male Genitalia. As in typical form.

Distribution ( Fig. 5C ). CHAD,? SENEGAL.

Note. Endrődi (1974) recorded this species also from Senegal based on one individual specimen, claiming that the locality was doubtful.

Figures

Fig. 5. Distribution of Pentodon algerinus in Africa. A) P. a. algerinus, B) P. a. nubicus, new subspecies, C) P. a. tchadensis.