Epimetopus plaumanni, : Oliva, 1986

Perkins, Philip D., 2012, 3531, Zootaxa 3531, pp. 1-95 : 62-64

Epimetopus plaumanni (Costa Lima)

Figs. 99 (habitus), 103 (aedeagus), 126 (map)

Georyssus plaumanni Costa Lima, 1954: 177.

Epimetopus plaumanni : Rocha, 1969: 179.

Epimetopus plaumanni: Oliva, 1986: 11 .

Type material: Holotype (male): “ Brasilien, Nova Teutonia , 27° 11’B–52° 23’ l, 300–500 m, IX 1952, Fritz Plaumann; Georyssus plaumanni n. sp. Costa Lima det.; TIPO [red]; Epimetopus plaumanni n. comb. Costa Lima 1954, A. A. Rocha det.;10.989; HOLOTIPO [red]” ( MSP).

New collection record: Brazil: Santa Catarina, Nova Teutonia , 27° 3' S, 52° 24' W, 1–30 i 1971, F. Plaumann (1 MCZ) .

Differential diagnosis. The dorsal habitus of E. plaumanni ( Fig. 99) is very similar to that of other members of the Plaumanni group. It differs from the others in the larger body size (ca. 2.50 mm) and the fact that males do not have the clypeus upturned. Dissection of males will be necessary for reliable identifications. The aedeagus is similar in size and general proportions to that of E. vianai ( Figs. 103, 104); it differs therefrom in the following: 1) the dorsal processes are shaped differently, being smaller and not having the apices turning outward; 2) the length of the median lobe above the dorsal processes is greater; 3) the apex of the median lobe is shaped differently; and 4) the apices of the parameres are shaped differently, in E. plaumanni being produced in a point on the medial side, a character not seen in the other species. There are also differences in the internal structure of the median lobe in the two species, E. plaumanni having the internal sac narrower and much more densely spiculate.

Description. Size: holotype (length/width, mm): body (length from anterior margin of pronotum to elytral apices) 2.50/1.25; head (width) 0.65; pronotum 0.88/0.96; elytra 1.69/1.25. Habitus as illustrated ( Fig. 99). Head piceous, maxillary palpi light brown; pronotum dark brown to piceous; elytra dark brown except yellowish fascia near midlength; venter piceous; legs rufous. Pronotum with hood carinae very slightly arcuate, converging and confluent anteriorly, grooved throughout; secondary lateral very small, almost absent. Elytron with four strong granulate carinae, third interrupted anteriorly for distance of ca. 3 punctures; punctures round or oval, large, each with small granule at anterior margin, non-carinate intervals without granules. Protibiae slightly emarginate on inner margin, almost straight. Metaventral depression moderately deep and wide, ca. nine granules along base.

Distribution. Currently known only from the type locality in Brazil ( Fig. 126).