SMICRONYX WEEVILS—ANDERSON 281 
before antennal insertions in the female; basal tufts of scales erect 
and prominent (figs. 7, 23). Prothorax moderately rounded on sides, 
narrowed and slightly constricted toward apex; punctures of disk 
oval to elongate-elliptical, confluent in some species, arranged in rows 
running anterolaterally from midline (fig. 7). Elytra subparallel on 
the sides, humeri and declivities distinct (fig. 7). Median lobe of the 
male genitalia moderately elongate, similar in shape to that of the 
S. obtectus group (compare figs. 76, 82). 
Discussion: The species of this group are more similar to those 
of the S. obtectus and S. wmbricatus groups than to the species of the 
other groups of Pseudosmicronyx in general body-form and male 
genitalia (compare figs. 76, 82, 84). S. imbricatus is distinct from 
the species of the S. corniculatus group in having a subcylindrical 
prothorax and almost completely squamose rostrum. In the two 
species of the S. obtectus group, the rostrum is more coarsely punctate, 
the elytra are less convex, and the third tarsal segment is narrower 
than in the S. corniculatus group. 
Map 10 gives the distribution of this group. 
Map 10.—Distribution of the specimens examined of the corniculatus group of Smicronyx 
A, S. californicus; A, S. immaculatus; %, S. commixtus; +, S. pallidus; @, S. cornicu- 
latus; ©, S. perpusillus; CO, S. flavicans; A, S. utilis. 
586455—62 7 
