SMICRONYX WEEVILS—ANDERSON 22 
alutaceous and very sparsely squamose in front. Antennae reddish 
brown throughout. Prothorax strongly rounded at sides, strongly 
narrowed and constricted toward apex; evenly and rather thinly 
covered with light brownish yellow scales and a few broader scales, 
which are condensed into three short vittae near base. 
Elytral intervals covered with ovate, subtruncate brownish yellow 
scales, which are condensed in several wavy transverse bands, in 
patches on humeri, and at base of third intervals. Underside of the 
thorax and abdomen thinly covered with yellowish linear scales, except 
side pieces of the mesothorax and metathorax, which are closely 
covered with broader scales. femora moderately clavate, piceous at 
base, the rest ferruginous, thinly covered with linear, yellowish scales. 
Tarsi ferruginous, third segment distinctly broader than first two; 
fourth segment not greatly exceeding third; claws small, nearly paral- 
lel, connate for nearly half their length. Median lobe of male genitalia 
broader at the base than at apex, fairly heavily sclerotized dorsally; 
internal sac covered with short, broad, and rather blunt spines; 
spiculum gastrale curved and expanded at anterior end (fig. 57). 
Stem of spiculum ventrale of female genitalia slightly expanded at 
anterior end (fig. 109). 
Measurements: The following measurements were taken from 7 
males and 9 females from Ithaca, N.Y. (DMA), 1 male and 1 female 
from Marblehead, Mass. (CU), 1 male from Glen View, Ill. (CNHM), 
and 1 male from Glen Echo, Md. All measurements are in 
millimeters: 
Males Females 
Mean Extremes Mean Extremes 
Body length 2. 48 2. 20-2. 65 2.49 2. 15-2. 60 
Elytra length ey el 1. 55-1. 90 172, 1550-1. 90 
Elytra width at base 1. 03 0. 96-1. 09 1.02 0. 83-1. 09 
Prothorax length 0. 67 0. 56-0. 73 0.66 0. 59-0. 73 
Prothorax width 0. 79 0. 69-0. 83 0.78 0. 66-0. 83 
Rostrum length 1. 02 0. 96-1. 12 1.10 0. 96-1.15 
Rostrum length before antennal 0. 35 0. 30-0. 40 0.47 0. 48-0. 49 
insertion 
Funicular segment 2 length 0.069 0. 068-0.085 0.069 0. 051-0. 085 
Funicular segment 3 length 0.058 0. 051-0.068 0.059 0. 051-0. 068 
Briotocy: This species was observed on Cuscuta gronovir Willd. 
near Ithaca, N.Y., from July 23 to Aug. 20, 1957. Numerous pairs 
were observed in copulation, and several females were seen chewing 
into the capsules of the Cuscuta, presumably in preparation for ovi- 
position. Unfortunately, no larvae were obtained from the capsules, 
although several dozen capsules were dissected in late August of 
that year. No galls were observed on the stems of the Cuscuta. A 
single host record was taken from the material examined: ‘‘Dodder,”’ 
Northboro, Mass,, Aug. 28 (CAS). 
