Psyllotoxus Thomson, 1868: 74

Nearns, Eugenio H. & Tavakilian, Gérard-Luc, 2012, A new genus and five new species of Onciderini Thomson, 1860 Coleoptera: Cerambycidae: Lamiinae) from South America, with notes on additional taxa, Insecta Mundi 2012 (266), pp. 1-23 : 9

Psyllotoxus Thomson, 1868: 74

Type species. Psyllotoxus griseocinctus Thomson, 1868 (monotypy).

The genus Psyllotoxus currently contains two described species, P. griseocinctus Thomson, 1868 ( Fig. 6a, d) and P. inexpectatus Martins and Galileo, 1990 ( Fig. 6b, d). A third species was described by Giacomel (1991) and later synonymized with P. inexpectatus . The following key treats all currently known species of Psyllotoxus including two new species described herein.

1.

— Eyes with lower lobes about as tall as gena .................................................................................... 2 Eyes with lower lobes distinctly shorter, slightly taller, or distinctly taller than gena ............ 3 2(1).

—

Pronotum with moderate-sized, blunt protuberance each side behind middle; base of elytra not distinctly granulate-punctate; mesepimeron, mesepisternum, and lateral margins of humeri not with black pubescence ( Brazil) .................. P. inexpectatus Martins and Galileo, 1990

Pronotum with small-sized, blunt protuberance each side behind middle; base of elytra distinctly granulate-punctate; mesepimeron, mesepisternum, and lateral margins of humeri with dark brown or black pubescence ( French Guiana) .............................................. P. dalensi , sp. nov.

3(1).

—

Eyes with lower lobes distinctly shorter than gena; antennal tubercles in male specimens armed at apex with short, blunt horn; antennomere III in male specimens distinctly swollen, strongly clavate ( Brazil) ........................................................................ P. griseocinctus Thomson, 1868

Eyes with lower lobes slightly taller than gena (females) or distinctly taller than gena (males); antennal tubercles in male specimens not armed at apex with short, blunt horn; antennomere III in male specimens not distinctly swollen ( French Guiana) .................... P. faurei , sp. nov.