Description

Holotype (Figs. 1-3). SL 4.1 mm. Body generally dark brown with pronotum and head (but not antennae) darker. Antennae 11-segmented, filiform, with 3-segmented club, the last segment divided into two areas by a weak suture with distal area conical and distiguished by shorter, denser setae; basal segment wider than all subsequent ones except those of club; all segments with small number of white setae mainly in apical half and directed apicad; club segments also with smaller, recumbent, closely opposed setae primarily laterally & apically. Rostrum downcurved (Fig. 2), weakly rugose in basal half, glabrous distally of antennal insertions.

Elytral setae almost evenly spaced, contained in pits but not forming vittae; setae denser on scutellum, effectively forming basal extension of pronotal vitta. Pronotal midline with weak vitta of white setae interrupted in middle. Setae protruding somewhat from elytral edges in dorsal view, giving a weak fringe but denser near apex. Recumbent setae on pronotum, occipital region and base of rostrum, shorter than elsewhere, largely contained in pits. Setae denser on venter (particularly in lateral region of pronotum) but never completely obscuring cuticle beneath. Apical tergite and ventrite each with a fringe of gold-brown setae apically.

Profemora enlarged, with single large subapical tooth with weakly incurved tip on inner side (Fig. 3); other femora without subapical spines. Protibiae on inner side basally excavated into a single spine (as in S. testaceus), with a series of weaker spines along apical half; also with two apical spurs and preapical mucro; meso- and metatibiae with two apical spurs but lacking an obvious mucro. Basal tarsites expanded, most markedly on forelegs, there almost circular (Fig. 3). All tarsites with white setae dorsally (very sparse on tarsite 5), all except 5 covered with fine setae beneath; tarsite 3 strongly lobed; claws weakly divaricate and with a minute tooth about half way along the claw (Fig. 3, left panel).