22 PROCEEDINGS OF THE NATIONAL MUSEUM Vor. 118 
(CAS), 2 females from Ahwahnee, Calif. (CAS), 1 male from Davis, 
Calif. (USNM), 1 male from Pasadena, Calif. (CAS), 1 female from 
San Bernardino, Calif. (CAS), and 1 female from Kernville, Calif. 
(USNM). All measurements are in millimeters: 
Males Females 
Mean Extremes Mean Extremes 
Body length 2. 20 2. 0-2. 50 2Ho2 2. 10-2. 50 
Elytra length 1. 50 1. 30-1760)" 1.58 1. 40-1. 70 
Elytra width at base 0. 91 0. 86-0.96 0.94 0. 86-1. 03 
Prothorax length 0. 56 0. 538-0. 63 0. 57 0. 53-0. 63 
Prothorax width 0. 61 0. 56-0.66 0. 64 0. 60-0. 70 
Rostrum length 0. 78 0. 73-0. 83 0.83 0. 73-0. 86 
Rostrum length before antennal 0. 24 0. 20-0. 26 0.33 0. 30-0. 36 
insertion 
Funicular segment 2 length 0. 051 0. 051 
Funicular segment 3 length 0. 051 0. 051 
Bioutocy: Pierce (1939) reported collecting this species from 
Cuscuta californicus on the sand dunes at El Segundo, California 
on May 18, June 15, and June 19, 1938. Adults were bred from the 
seed capsules on July 18-21, 1938. Adults were again collected on 
the Cuscuta on February 25, 1939. Concerning the immature stages, 
Pierce stated: ‘This weevil breeds in the ovaries of the dodder, 
causing a slight gall-like swelling,” and, ‘‘The larvae are bright orange 
color and quite active crawlers, so that it is possible that some may 
enter the ground for pupation, but orange-colored pupae were found 
in the flowers.” 
DisrriputTion: Present records indicate that S. cuscutiflorae may 
be found in the Pacific mountain system, chiefly in valley regions in 
California. There is one record (Reno, Nev.) from the Sierra Nevada 
region. The specimens examined are as follows: 
CALIFORNIA: KERN Co.: Kernville, May 6 (USNM). Los ANGELES CO.: 
Azusa, June, July 30 (CAS), El Segundo, May 18, June 13 and 15 (paratypes, Los 
Angeles County Museum); Pasadena, April (CAS). Maprra co.: Ahwahnee, 
May (CAS). SAN BERNARDINO Co.: San Bernardino, May 13 (CAS). SAN DIEGO 
co.: Poway (CAS). youo co.: Davis, May 13 (USNM). 
NEVADA: WASHOE Co.: Reno, July (USNM). 
Total specimens examined: 29. 
Smicronyx obscurus, new species 
Fieures 52, 104 
Description: Rostra of both sexes piceous, slightly curved, 
punctate from base to apex, sparsely squamose behind the antennae; 
