272 GEO. H. HORN, M. D. 



The last ventral of male is emarginate each side, the middle lobe 

 moderately prominent, slightly concave, a moderately deep longitu- 

 dinal impression extending nearly to the base. 



By its pale legs and antennae, and the distinct, sharp punctuation, 

 this species is easily known. The gense are slightly rugulose and 

 punctate, but not so well marked as in elongata. 



Occurs in California and Nevada. 



S. pallipes Scbwarz. — Similar in form and coloration to sahienea, but i-ather 

 more elongate and without the seneous surface lustre. Antennae half as long as 

 the body, rufotestaceous, the terminal four or five joints piceous. Head very 

 sparsely and finely punctate. Thorax about one-fourth wider than long, not 

 wider at base, sides nearly straight, margins very narrow, anterior angles ob- 

 liquely truncate, disc moderately convex, indistinctly alutaceous, sparsely, obso- 

 letely punctate. Elytra scarcely wider at base than the thorax, humeri obliquely 

 rounded, surface slightly wrinkled, indistinctly coarsely punctate. Body beneath 

 brownish, abdomen very sparsely punctate. Legs entirely yellowish testaceous. 

 Length .12— .14 inch. ; 3—3.5 mm. 



The last ventral of the male is lobed at middle as usual, flat and 

 with a longitudinal impressed line extending the entire length of the 

 segment. 



This species is related to subcenea, but has no ?eneous lustre, and 

 the punctuation of the surface very indistinct. The legs are entirely 

 pale, the genre smooth. 



Occurs in Georgia and Florida. 



S. elongata Fab. — Elongate oval, moderately convex, piceous, surface with 

 slight ieneous lustre, each elytron with a yellow vitta reaching nearly to the 

 apex. Antennaa half as long as the body, brownish. Head dark brown, coarsely 

 and closely punctate, the gense coarsely and deeply punctate. Thorax one- fourth 

 wider than long, slightly narrowed at apex, sides slightly arcuate, margin nar- 

 row, anterior angles slightly oi)liquely truncate, disc rather coarsely and closely 

 punctate. Elytra distinctly wider at base than the thorax, humeri rounded, 

 surface more finely and sparsely punctate than the thorax, the yellow vitta is 

 nearly in the middle of each elytron, and extends nearly to apex. Body beneath 

 piceous, abdomen sparsely, finely punctate. Anterior and middle legs and poste- 

 rior tibiae reddish, the posterior femora piceous. Length .12 — .16 inch. ; 3 — 4 mm. 



The male characters are a repetition of those of subcenea. 



This species is the only one known to me in which the sides of the 

 head beneath and in front of the eyes are coarsely punctate and 

 rugulose. It is also remarkable for the constancy of its general 

 characters, while our other vittate species varies excessively. 



Occurs in Georgia and South Carolina. 



