SMICRONYX WEEVILS—ANDERSON 215 
Smicronyx mucidus Dietz 
Figure 152 
Smicronyz mucidus Dietz, Trans. Amer. Ent. Soc., vol. 21, p. 138, 1894. Lecto- 
type, here designated: Female, Washington Territory, MCZ 1898 (Dietz 
collection). 
Smicronyxz scalator Dietz, Trans. Amer. Ent. Soc., vol. 21, p. 147, 1894. New 
synonymy. Lectotype, here designated: Male, ‘“Cal.,”’” MCZ 1905 (Dietz 
collection). 
Smicronyx cognatus Dietz, Trans. Amer. Ent. Soc., vol. 21, p. 144, Pl. 7, figure 13, 
1894. Lectotype, here designated: Male, Nevada, MCZ 1901 (Dietz 
collection). 
Description: Rostra of both sexes black, moderately curved, 
rugulosely punctate behind antennal insertions; unicarinate dorsally 
behind antennal insertion in female, bicarinate near the antennal 
insertions in male; noticeably more polished and more sparsely punc- 
tate in female than in male. Head black, finely punctate, thinly 
squamose above base of rostrum. Antennae black throughout. 
Prothorax black, broadly rounded at sides, strongly narrowed and 
slightly constricted near apex; disk closely and deeply punctate, the 
interspaces shining; scales broadly elliptical, white along sides and 
in a short median vitta at base, the rest medium brown; prosternum 
moderately emarginate, and concave. 
Elytra black to piceous; intervals covered with small, broadly 
ovate scales, mostly yellowish brown, but some white, the white 
scales condensed at sides in some specimens. Femora rufopiceous, 
covered with both white and yellowish brown elongate-oval scales. 
Tibiae rufopiceous, covered with white and yellowish brown linear 
scales. Tarsi black; third segment distinctly broader than first two; 
fourth segment extending considerably beyond third; claws small, 
connate for approximately half their length, slightly divergent. 
MeasurEMENTs: The following measurements were taken from the 
lectotype (a female), 1 male from Sequoia National Park, Calif. 
(USNM), and 2 females from Island Mountain, Calif. (USNM). All 
measurements are in millimeters: 
Male Females 
Mean Extremes 
Body length 3. 00 3. 20 3. 10-3. 40 
Elytra length 2. 10 2.15 2. 00-2. 40 
Elytra width at base 1. 23 1. 27 1. 20-1. 32 
Prothorax length 0. 70 0. 78 0. 73-0. 83 
Prothorax width 0. 91 0. 91 0. 80-1. 00 
Rostrum length 1. 00 15 12 1. 10-1.-13 
Rostrum length before antennal insertion 0. 30 0. 44 0. 40-0. 50 
Funicular segment 2 length 0.068 0.068 
Funicular segment 3 length 0.051 0.051 
Brotoay: There is no information available at present on the 
biology of this species. 
