236 PROCEEDINGS OF THE NATIONAL MUSEUM Von. 113 
Elytra piceous to reddish brown, the intervals covered with scales 
similar to those on prothorax. Underside of thorax and abdomen 
black, covered with broadly ovate white scales. Jfemora moderately 
clavate, deep reddish brown, covered with light grayish white elong- 
ate-ovate scales. Tibiae reddish brown, the scales elongate. Tarsi 
piceous, fourth segment projecting only slightly beyond the third; 
tarsal claws small, subparallel, connate for approximately half their 
length. Median lobe of male genitalia slightly wider at base than at 
apex, not lightly sclerotized dorsally, internal sac covered with fine 
spines; spiculum gastrale slightly hooked at the anterior end (fig. 61). 
MrasurEeMENnts: The following measurements were taken from 3 
males and 5 females from Key West, Fla. (CM, CAS, CNHM, ELS), 
1 male from Big Pine Key, Fla. (USNM), 1 male from Saddlebunch 
Keys, Fla. (ELS), and 1 female from Crescent City, Fla. (USNM). 
All measurements are in millimeters: 
Males Females 
Mean Extremes Mean Extremes 
Body length 2. 38 2. 30-2. 50 2.35 2. 20-2. 60 
Elytra length lig 1. 70-1. 90 1.68 1. 60-1. 90 
Elytra width at base 0. 91 0. 83-1. 00 0.88 0. 79-0. 96 
Prothorax length 0. 55 0. 53-0. 56 0.59 0. 56-0. 63 
Prothorax width 0. 66 0. 63-0. 69 0.66 0. 59-0. 69 
Rostrum length 0. 83 0. 79-0. 86 0.85 0. 79-0. 96 
Rostrum length before antennal 0. 32 0. 30-0. 33 0.40 0. 36-0. 46 
insertion 
Funicular segment 2 length 0. 051 0. 051 
Funicular segment 3 length 0.044 0. 034-0.051 0.045 0. 034-0. 051 
Biotoagy: Two host-plant records, which follow, were taken from 
the material examined: “On Flaveria linearis,’ Key West, Fla., Dec. 
29 (ELS); “on Flaveria linearis,” Saddlebunch Keys, Fla., Dec. 29 
(ELS). 
Discussion: S. halophilus differs from the majority of the species of 
the S. sculpticollis group in not having a coarsely punctate or sculp- 
tured prothorax, and not having a banded or fasciate pattern of scales 
on the elytra. However the genitalia of both sexes resemble those of 
the species of that group much more than they resemble those of any 
other species group. Therefore, S. halophilus is presently placed in the 
S. sculpticollis species group rather than being allowed to stand alone 
‘n a rather indistinct “group” of its own. 
Distripution: S. halophilus has been recorded only from the Flor- 
ida peninsula and the Florida keys. 
