Horn.] 4b-± [Sep. ly, 



R. palmacollis Say. Cure. N. A., pp. 16, 27 ; Am. Ent. edit. Lee., I., 

 pp. 279, 295 ; Boh. Schonh. Gen. Cure. IV., p. 366. 



Form short, robust, oval, black, feebly shining. Rostrum as long as 

 thorax, moderately arcuate, sparsely punctured at tip, at sides feebly 

 sulcato-punctate, above carinate at base. Head densely punctured. 

 Thorax nearly twice as wide at base as long, sides gradually arcuate, 

 apex moderately constricted, base feebly arcuate, disc moderately convex, 

 median line finely carinate, and with deep strigas, oblique and parallel, 

 surface glabrous. Scutellum densely clothed with brownish pubescence. 

 Elytra oval, gradually and arcuately narrowed to apex, very convex, 

 with rows of deep oblong punctures, suture and each alternate interval 

 acutely carinate and a short carina at humerus, color black obsoletely 

 spotted with brownish especially near the apex, the spots slightly pubes- 

 cent. Body beneath coarsely, abdomen and legs more finely and densely 

 pubescent, each puncture bearing a very short yellowish hair at bottom. 

 Femora moderately toothed, tibiae with a tooth near the apex externally. 

 Length .24 inch ; 6 mm. 



The oblique strigosites of the thorax are nearly at right angles to the 

 sides of the thorax, and the basal line of the thorax is straight and 

 transverse opposite the scutellum. 



Occurs in Florida and Texas, not common. 



R. lineaticollis Say. Journ. Acad. III., 1823, p. 313; Cure. N. A. 

 and Am. Ent. ut supra; Boh. Schonh. Gen. Cure. VIII., 2, p. 9. 



Similar in form and sculpture to the preceding, differing as follows : 



Rostrum acutely carinate at basal half, a slight impression slightly 

 above the eyes. Thorax more than twice as wide as long, sides strongly 

 arcuate, apex scarcely constricted, surface with deep strigge, longitudinal 

 and parallel with the median line, becoming slightly arcuate near the 

 sides. Scutellum glabrous or very nearly so. Elytra entirely black 

 without brownish pubescent spots. Length .22-.26 inch ; 5.5-6.5 mm. 



The basal line of thorax at middle is slightly arcuate and approaches 

 more nearly the scutellum. 



Occurs from Pennsylvania to Kansas and Texas. 



R. sequalis n. sp. 



Robust, oval, black, feebly shining. Rostrum sparsely punctured in 

 front, basal half punctato-sulcate, not carinate. Head moderately densely 

 punctured. Thorax one-third wider at base than long, sides arcuate, 

 apex feebly constricted at the sides, base feebly arcuate, surface obliquely 

 arcuately strigose, with a few punctures along the apical and basal mar- 

 gins. Scutellum not pubescent. Elytra oval, feebly narrower at apex, 

 surface with rows of coarse deep, elongate punctures, intervals nearly 

 flat, slightly reticulately rugulose, no short humeral carina. Body be- 

 neath coarsely, abdomen very densely and more finely punctured. Length 

 .16 inch ; 4 mm. 



The intervals are not absolutely equal, some are flat the others slightly 



