278 MR. M. JACOBY ON COLEOPTERA [May 21, 



closely covered with dark and partly fulvous pubescence, obscuring 

 the punctuation, the sides nearly straight, the anterior angles sub- 

 tuberculit'orm, each furnished with a single hair, the surface with a 

 transverse distinct depression near the base and two strongly raised 

 tubercles near the anterior margin ; scutellum triangular, closely 

 pubescent ; elytra finely punctate-striate, transversely depressed 

 below the base, the interstices longitudinally costate, tliose at the 

 base and the second subsutural costa at the middle more strongly 

 raised than the others, the surface closely covered with dark fuscous 

 or greyish pubescence, the sutural margin and a narrow space at the 

 middle of the disk brighter fulvous or yellowisli ; each elytron with 

 three transverse rows of irregularly placed small white spots, the first 

 row placed near the middle, the second below the latter, and the 

 third near the apex. 



San Esteban, near Puerto Cabello and La Guaira. 



O. carinatus, although very closely allied to O. bituberculatus, 

 O.fuscatus, Clark, and O. albomaculatus, Jac, seems to differ suffi- 

 ciently from eitlier species to justify its separation. It differs from 

 the two first named species in the short but distinct longitudinal 

 ridge of the head and in the different colour of the elytra. O. albo- 

 maculatus is a smaller insect, the head has no ridge, and the elytra 

 are of a more uniform coloration, but have the same small white spots 

 placed similarly ; the thorax is, however, less transverse. The colour 

 of the present insect is subject to great variation, some specimens 

 being nearly black, others greyish white or dark fulvous and variously 

 spotted; the more brightlj'^ coloured sutural margin and a narrow 

 elongate space on the middle of the disk seem, however, to be 

 constant in all specimens ; the anterior legs are generally fulvous, 

 the others darker and spotted. 



Hypolampsis fragilis, Clark. 

 Caracas. 



PhYSIMERUS SIMONl, H. Sp. 



Dark brown or fuscous, clothed with bright flavous pubescence ; 

 antennae with the 7th and 8th joints fuscous; elytra with the basal 

 portion raised, irregularly variegated with flavous or greyish pubes- 

 cence and some obscure transverse darker markings. 



Length 1|^-1| line. 



Head dark brown, the vertex finely rugose, clothed at the sides 

 with golden-yellow pubescence ; eyes large ; palpi cylindrical, scarcely 

 thickened ; antennae slender, two thirds the length of the elytra, 

 dark fulvous, the base of each joint often darker, the seventh and 

 eighth entirely dark, the third and the two following joints slender 

 and equal, the following ones gradually shortened ; thorax nearly 

 quadrate, narrowed at the base, the sides straight at the latter place, 

 rounded and widened before the middle, the anterior angles slightly 

 tuberculiform, the surface depressed at the posterior jjortion, giving 

 the middle part a transversely raised appearance when viewed side- 

 ways, clothed with short golden-yellow pubescence, principally at the 



