SMICRONYX WEEVILS—ANDERSON 209 
MeasureMENTs: The following measurements were taken from 
8 males and 8 females from Friday Harbor, Washington, July 8 
(USNM). All measurements are in millimeters: 
Males Females 
Mean Extremes Mean Extremes 
Body length 2. 28 2. 10-2. 50 2.31 2.10-2: 50 
Elytra length 1.53 1. 40-1. 60 1.59 1. 40-1. 70 
Elytra width at base 0. 93 0. 83-1. 06 0.92 0. 86-1. 00 
Prothorax length 0. 55 0. 49-0. 59 0.57 0. 53-0. 63 
Prothorax width 0. 67 0. 59-0. 73 0.69 0. 63-0. 73 
Rostrum length 0. 75 0. 66-0. 83 0.81 0. 73-0. 86 
Rostrum length before antennal 0. 22 0. 20-0. 26 0.28 0. 26-0. 30 
insertion 
Funicular segment 2 length 0.053 0.051-0.068 0.060 0. 051-0. 068 
Funicular segment 3 length 0.040 0.034-0.051 0.045 0. 034-0. 051 
Houoryre: Male, USNM 65407 
Typr Locauity: Friday Harbor, Washington. Collected by W. W. 
Baker on July 8, 1943. 
Paratyres: 7 males and 8 females from Friday Harbor, Washing- 
ton; all collected with the holotype; all tentatively placed in the 
collection of the U.S. National Museum. 
Brotoacy: All of the specimens in the type series were labeled 
“Ouscuta salina (?).’? Otherwise, there is no information available 
on the biology of this species. 
Discussion: This species resembles S. cinereus Motschulsky in size 
and in shape of the body parts, but differs from that species in several 
respects. In S. pacificus, all of the scales are white or grayish white, 
the antennal club is a pale rufous, the rostral carinae are rather thin 
and obscure, and the median lobe of the male genitalia is only slightly 
broadened toward the apex. In S. cinereus, there are brownish scales 
on the body surface, including the underside, the antennal club is 
usually brownish or piceous, and the rostral carinae are fairly prom- 
inent. In addition, the elytra of S. pacificus are slightly more convex 
than those of S. cinereus. 
Smicronyx tardus Dietz 
Figure 151 
Smicronyx tardus Dietz, Trans. Amer. Ent. Soc., vol. 21, pp. 139-140, 1894. 
Type: Male, California, Academy of Natural Sciences, Philadelphia 2913 
(Horn collection). 
Description: Rostra of both sexes rufopiceous, stout, moderately 
curved, squamose, rugosely punctate and singly carinate behind an- 
