Pilosirus amazonicus OPITZ, nov.sp.

(Figs. 75, 141, 160)

Holotype: ♀. Amazon (Brazil), Bates (BMNH).

Diagnosis: Distinguishable from superficially similar specimens of Pilosirus versus by having a more obtuse pronotal tubercle (compare Figs. 141, 142).

Description: Size: Length 7.0 mm; width 1.8 mm. Form: As in Fig. 160. Color: Cranium mostly black, region behind eyes slightly flavotestaceous, gula flavotestaceous; pronotum mostly black, venter and upper sides flavotestaceous; mesoscutellum black; elytra black. Head: Antennal capitulum long (Fig. 75), each capitular antennomere not as long as combined length of scape, pedicel, and funicle; antennal carina very prominent; EW/FW 10/15. Thorax: Pronotal anterior margin not projected at middle, side margin of disc with obtuse tubercle; PW/PL 43/43; elytral disc not strongly deflexed at sides, carina not present; EL/EW 145/35. Abdomen: Male pygidium not incised at distal margin.

Distribution: Known only from Amazonia, Brazil.

Etymology: The trivial name, amazonicus, constituted a name in apposition and refers to the type locality.