Stenocrates caiporae Ratcliffe, 2014

Ratcliffe, Brett C., 2014, A New Genus and Species of Dynastinae (Coleoptera: Scarabaeidae) from the Galápagos Islands, Ecuador, other New Species of Cyclocephalini, Pentodontini, and Phileurini from South America, and a Revised Key to the Genera of New World Pentodontini, The Coleopterists Bulletin 68 (4), pp. 663-680 : 663-680

Stenocrates caiporae Ratcliffe , new species ( Figs. 5–8 )

Type Material. Holotype and single male paratype with handwritten label: “ Estirão do Equador / Rio Yavari – Amazo. / XI – 1960 – J. Hidasi ” and with my red holotype and yellow paratype labels, respectively . Holotype deposited at the University of Nebraska State Museum (Lincoln, NE, USA) . Paratype deposited in the B. C. Ratcliffe collection (Lincoln, NE, USA) .

Holotype. Male. Length 25.7 mm; width 11.8 mm. Color dark reddish brown. Head: Frons shiny, with small, sparse punctures in basal half, punctures becoming slightly larger mesad of each eye and near frontoclypeal suture. Frontoclypeal suture distinctly impressed, ridge in front of suture vaguely carinulate either side of middle and obsolete at middle. Clypeus transversely rugose, apex shallowly emarginate, apical rim thickened. Interocular width equals 2.2 transverse eye diameters. Antenna with 10 segments, club subequal in length to antennomeres 2–7. Pronotum: Surface shiny, with sparse micropunctures, punctures becoming slightly larger along lateral margins. Lateral margins with thick marginal bead, base without marginal bead. Elytra: Surface shiny, with punctate sutural stria and 2 pairs of distinct discal striae and 1 pair of striae behind humerus; each stria comprised of large, deep, closely adjacent punctures. First broad interval with an irregular, almost double row of large, sparse punctures. Pygidium: Surface shiny, completely and densely punctate, punctures moderately large, glabrous. In lateral view, surface regularly convex. Legs: Protibia tridentate, teeth subequally spaced. Metatarsus shorter than metatibia. Venter: Prosternal process long, thick; in lateral view, columnar, apex broadly rounded; in ventral view, apex suboval. Parameres: Widest at about middle, with a subapical “tooth” on each side, and apices rounded ( Figs. 6–7 ).

Variation. Male (1 paratype). Length 25.0 mm; width across humeri 12.0 mm. The paratype does not differ significantly from the holotype. Head: Interocular width equals 2.5 transverse eye diam- eters. Pygidium: Apical third becoming slightly less densely punctate. The female remains unknown.

Etymology. The specific epithet is derived from Caipora, who, in the Tupi-Guarani mythology, is

Figures

Fig. 5–7. Stenocrates caiporae, holotype. 5) Habitus; 6) Parameres, caudal view; 7) Parameres, lateral view.

Fig. 8. Estirão do Equador, Amazonas, Brazil, type locality for Stenocrates caiporae. Image courtesy of Google Maps and Diogobgz via Share Alike.