212 DESCRIPTIONS OP NEW SPECIES. 



A. Body very elongate ; 5th ventral of $ very deeply excavated, so as to 



appear emarginate, lateral lobes thin, expanded ; (elytra not 

 fasciate). 



* Hind tarsi with third joint scarcely emarginate ; 



Ferruginous, antennae thicker ; elytra more coarsely punctured with pale 

 sutural markings, (4th ventral $ with a broad apical impression). 

 Texas. 1. VIBILIS n. sp. 



** Hind tarsi with 3d joint strongly emarginate ; 



Above testaceous, head sometimes fuscous, antennae blackish, slender ; 

 prothorax with two broad black vittae, elytra less coarsely punctured, 

 with black marginal spots ; beneath usually dark, abdomen sometimes, 

 and legs partly, testaceous. (Varies entirely black, also entirely pale, 

 with the antennae, and parts of the legs dark). Atlantic States. 



2. FAMELICA Newm. 



Blac'k, elytra more coarsely punctured, pale, with margin and suture black- 

 ish ; tip less acuminate, and more distinctly truncate than in the pre- 

 ceding, than which it is smaller and more slender. (Varies entirely 

 black.) Middle States. 3. ACDMINATA (Oliv.) 



B. Body very elongate, 5th ventral of $ more or less excavated, but not 

 emargiuate, lateral lobes not, or only moderately, expanded ; 3d joint 

 of hind tarsi emarginate ; 



Ferruginous, elytra with two transverse testaceous bands. Florida. 



4. STRIGOSA Newm. 



Rufo-testaceous, prothorax with two vittse, elytra with three transverse 

 bands black ; hind thighs black at the tip. Atlantic States. 



5. LOTEICORNIS (Fabr.) 

 Ferruginous, elytra black. Atlantic States. 6. BICOLOR (Swed.~) 



C. Body less elongate, 5th ventral of $ only triangularly impressed ; 6th 

 joint of antennae without sensitive spot. 



Ferruginous, elytra paler, with three large spots extending from the mar- 

 gin nearly to the suture. Atlantic States. 7. 6-NOTATA Hold. 



539. S. Tirilis. This species resembles in form S. strigosa, 

 but is larger (15 19 mm.) ; the color above is ferruginous brown, 

 thinly clothed with fine yellow pubescence. The antennae ($) 

 are stouter than in any other species, and are about two-thirds 

 the length of the body. The prothorax is one-third longer than 

 the basal width, gradually narrowed in front, very feebly sinuate 

 on the sides, not impressed behind, densely punctured with two 

 fuscous badly defined vittae ; elytra acutely acuminate behind, 

 and slightly dehiscent, extending to the tip of the 3d segment, 

 more coarsely and less densely punctured than in S. famelica, 

 with a scutellar spot, and two sub-sutural triangular ones con- 

 nected along the suture, paler testaceous, and covered with yellow 

 hair. Beneath fuscous, legs ferruginous, outer half of hind 



