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- 
tuberculiform, 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, those 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 margia and a narrow space at the 
middle of the disk brighter fulvous or yellowish ; 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. dituberculatus, 
O. fuscatus, Clark, and O. albomaculatus, Jac., seems to differ suffi- 
ciently from either 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 brightly 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 fulvons, 
the others darker and spotted. 
Hypro.Lampsis FRAGILIS, Clark. 
Caracas. 
PHYSIMERUS SIMONI, N. sp. 
Dark brown or fuscous, clothed with bright flavous pubescence ; 
antennee 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 14—1# line. 
Head dark brown, the vertex finely rugose, clothed at the sides 
with golden-yellow pubescence ; eyes large; palpi cylindrical, scarcely 
thickened ; antennze 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 portion, giving 
the middle part a transversely raised appearance when viewed side- 
ways, clothed with short golden-yellow pubescence, principally at the 
