288 PROCEEDINGS OF THE NATIONAL MUSEUM Von. 113 
(USNM), and 1 female from Santa Ana, Calif. (USNM). All meas- 
urements are in millimeters: 
Males Females 
Mean Extremes Mean Extremes 
Body length Pde F459 2. 60-2.85 2.60 
Elytra length 1. 98 1. 90-2.05 1.90 
Elytra width at base 1 ila 1.06-1.19 1.05 1. 03-1. 06 
Prothorax length 0. 67 0. 59-0. 73 0. 66 
Prothorax width 0. 82 0. 76-0. 89 0. 74 0. 73-0. 74 
Rostrum length 1. 03 1.00-1.06 1.06 
Rostrum length before antennal 0. 36 0. 33-0.40 0.49 
insertion. 
Funicular segment 2 length 0. 085 0. 085 
Funicular segment 3 length 0. 051 0. 068 
Brotoay: No information is presently available on the biology of 
this species. 
Discussion: S. californicus resembles S. corniculatus (Fahraeus) in 
respect to body shape and proportions, prothoracic punctation, and 
shape of the male genitalia (figs. 76, 77). However, S. corniculatus 
does not have the black (or nearly black) body color and all-white 
scales which are characteristic of S. californicus. In addition, the 
female genitalia of the two species are slightly different in shape. 
DistrispuTion: S. californicus has been recorded only from the 
coast of southern California. The following specimens have been 
examined: 
CALIFORNIA: LOS ANGELES CO.: No data (USNM). oRAnGE co.: Laguna 
Beach, July 13 (USNM), Santa Ana, July 6 (USNM). san D1EGO co.: Poway 
(CAS). 
Total specimens examined: 6. 
Smicronyx pallidus, new species 
Figures 150, 157 
Description: Rostrum of both sexes only moderately stout, deep 
reddish brown to piceous; closely, somewhat rugulosely punctate 
before antennal insertions and closely, very coarsely punctate behind 
antennal insertions; tapered, polished, and finely punctate before 
antennal insertions, shallowly but coarsely punctate behind antennal 
insertions in females; closely covered with elliptical brownish-white 
scales behind antennal insertions in both sexes. Antennae reddish 
brown throughout, their scales linear and whitish. Head black to 
piceous, finely alutaceous, sparsely squamose in front. Prothorax 
black to piceous, broadly rounded at sides, gradually narrowed and 
slightly constricted at apex; punctures shallow, confluent, so that 
interspaces form raised, wavy rugae which run anterolaterally from 
midline; closely covered with a mixture of narrow and elliptical pale 
brownish gray scales. 
