Cyclocephala machadoi, Grossi, Paschoal C., Santos, Mariana D. & Almeida, Lúcia M., 2016

Grossi, Paschoal C., Santos, Mariana D. & Almeida, Lúcia M., 2016, Two new species of Cyclocephala (Coleoptera: Scarabaeoidea: Melolonthidae) from Minas Gerais State, Brazil, Zootaxa 4078 (1), pp. 245-251 : 246

Cyclocephala machadoi sp. nov.

( Figures 1 A–F)

Material examined. Holotype male labeled: “ Brasil, MG, São Gonçalo/do Rio Preto, P.E. do/Rio Preto, Porteira, Posto (4)/ 02.xii. 2011, 847m, black/ligth, – 18.09o S, – 43.34o W /Oliveira & Ferreira legs.” ( CERPE).

Holotype male. Total length: 9.0 mm. Total pronotal width: 3.61 mm. Body: Dorsal surface glabrous, ventrally moderately setose, setae distinctly elongate. Color almost completely testaceous, but head black except clypeus, antennae light pale whitish yellow, and pronotum and legs slightly darker ( Fig. 1 A). Head: Dorsal surface finely punctate, more punctate on frons; clypeus almost impunctate, sides parallel at base, then weakly convergent to trapezoidal, reflexed apex ( Figs 1 A–B). Frontoclypeal suture obsolete. Antennae with lamellae extremely developed, moderately and densely punctate ( Fig. 1 C); first lamella externally with longitudinal row of scattered setae. Mouthparts: Mandibles slender, apices upturned and weakly curved externally; last maxillary palpomere as long as preceding 2 together. Pronotum: Surface moderately and uniformly punctate, smooth along center line, posterior margin with a weak bead at middle. Scutellum totally punctate, punctures moderately large. Elytra: Surface distinctly punctate; striae well defined but weakly marked, punctures fine. Legs: Protibiae tridentate with basal tooth nearly obsolete ( Figs 1 A–B); inner claw widely bifid, forming a right angle ( Fig. 1 D). Venter: Anterior prosternal margin sinuous and slightly crenulated, distinctly trilobed at middle, with middle lobe more prominent and conspicuous than lateral ones ( Fig. 1 F). Prosternal process high, but clearly not exceeding coxal height. Genitalia: Parameres symmetrical, moderately elongated, with 2 lateral projections, basal projection larger, middle projection directed laterally; apex not diverging internally, parallel; subapex with small tooth; apex rounded ( Fig. 1 E).

Etymology. This species is named in honor of the entomologist and friend, Dr. Angelo Barbosa Monteiro Machado, expert in the taxonomy of dragonflies (Odonata), on occasion of his 80th birthday.

Figures

FIGURE 1. Males of Cyclocephala. A – F. holotype male of C. machadoi sp. nov.; G. C. everardoi sp. nov. holotype male; A. dorsal habitus; B. head, pronotum, and protibiae; C. antennal lamellae; D. anteriorprotarsus; E. parameres in caudal view; F. anterior margin of prosternum (arrows indicating the anterior projected margin); G. anterior margin of prosternum (arrows indicate the projected margin). Scale bars = 1 mm.