Aphelocerus nolus OPITZ nov.sp. (Figs 7, 109, 205, 266)

Holotype: ♂. Type locality: PERU, Madre de Dios, Rio Tambopata Res., 30 km (air) sw Pto. Maldonado, 290 m, 12°50'S 069°20'W. A second label reads: Canopy Fogging Project, 31 Oct 82, La Torre Trail to Sunset Pt., Secondary Floodplain Forest-Fogged tree No. 73. A third label reads: FOGGING 0064921 (USNM) . Paratype: 1 specimen. Peru: Provincia de Tambopata, Madre de Dios, Rio Tambopata Reserva, 30 km SW Puerto Maldonado, 12°50'S 069°20'W, 31-X- 1982, 290 m, canopy tree fogging, collector not noted (USNM).

D i a g n o s i s: The genus Aphelocerus KIRSCH was revised in 2005 (OPITZ 2005). This work included a key to species. Aphelocerus nolus specimens key out to A. hespenheidei OPITZ, from which they differ by showing broader and less acuminate phallobasic lobes.

D e s c r i p t i o n: Size: Length 5.0 mm; width 1.8 mm. Form: As in Fig. 266. Color: Black; few white setae at frontal sides, row of white setae on metepisternum. Head: Genae and epicranium extended; gena wrinkled behind eyes; interocular depression and frontal umbo shallow; antenna (Fig. 7) capitate, funicular antennomeres filiform, progressively shorter and wider towards capitulum, capitulum not compact; eyes finely facetted, eye narrower than frons (EW/FW 20/40). Thorax: Pronotum proper (Fig. 109) subglobose, very finely punctate (PW/PL 78/92); elytra short and boldly convex, disc with striae of very small setiferous punctures (EL/EW 215/60). Abdomen: Pygidium transverse / scutiform; aedeagus as in Fig. 205.

Variation: Frons width is sex dimorphic with male frons proportionally wider. Also, male antennae are proportionally longer and the capitulum is slightly more lax.

N a t u r a l H i s t o r y: The available specimens were collected by fogging tree canopy, during October, at 290 m.

D i s t r i b u t i o n: ThisspeciesisknownfromPeru.

E t y m o l o g y: The trivial name, nolus, is a Latin noun that stems from nola (= bell); with reference to the shape of the pronotum.