320 PROCEEDINGS OF THE NATIONAL MUSEUM Vou. 113 
Smicronyx resplendens Dietz 
Figures 91, 137 
Smicronyx resplendens Dietz, Trans. Amer. Ent. Soc., vol. 21, p. 142, 1894. 
Type: Female, California, CM (Ulke collection). 
Description: Rostra of both sexes dark reddish brown, moderately 
arcuate, coarsely punctate and squamose behind antennal insertions, 
glabrous and more finely punctate before antennal insertions; more 
tapered and polished before antennal insertions in female than in male. 
Front of head covered with broad, overlapping yellowish white scales. 
Second funicular segment of antenna distinctly longer than third 
funicular joint. Antennal club ovate, reddish brown, sparsely 
pubescent. Prothorax broadly rounded at sides, suddenly narrowed 
toward apex; closely covered with broad whitish scales (which have a 
violet iridescence) intermixed with narrow brownish scales; surface 
almost black, disk covered with large, shallow, rounded punctures. 
Prosternum shallowly emarginate, slightly impressed transversely. 
Elytra moderately convex above, humeri distinct, declivities indis- 
tinct; covered with broad, imbricate, yellowish white scales, each 
interval bearing a row of elongate, setalike whitish scales. Scutellum 
small but distinct. Scales on venter of thorax and abdomen similar 
to broad scales of dorsum. Legs closely covered with scales similar to 
those of elytra. Femora strongly clavate. Tibiae not slender, 
slightly expanded toward apex. Fourth tarsal segment elongate, 
considerably exceeding third segment; claws slightly divergent, 
connate near base. 
MrasureMEnts: The following measurements were taken from 
5 males and 3 females from the Argus Mountains, Calif. (April 19) 
plus 1 female from Kern Co., Calif. All measurements are in milli- 
meters: 
Males Females 
Mean Extremes Mean Extremes 
Body length 2. 52 2. 45-2. 60 2.41 2, 20-2. 50 
Elytra length 13 783 1. 70-1. 80 1.60 1. 40-1. 70 
Elytra width at base 0. 94 0. 90-1. 00 0.90 0. 85-0. 95 
Prothorax length 0. 72 0. 70-0. 75 0.69 0. 60-0. 75 
Prothorax width 0. 80 0.72 0. 65-0. 75 
Rostrum length 0. 86 0. 80-0. 90 1.00 0. 90-1. 10 
Rostrum length before antennal 0.35 0. 30-0. 40 0.47 0. 45-0. 50 
insertion 
Funicular segment 2 length 0. 068 0.062 0. 058-0. 068 
Funicular segment 3 length 0.045 0.042-0.051 0.048 0. 042-0. 051 
Broutocy: No information is available on the biology of this species. 
