OXYPTERUS. AQ] 
episterna extremely narrow or invisible, the ventral segments 2-4 subequal in length, 
and the prothorax and elytra fasciculate. 
Prothorax gibbous at the middle of the dise . . . . 1 2 ee te ew ee Species l. 
Prothorax not gibbous at the middle of the disc. 
Prothorax and elytra conspicuously fasciculate. 
Elytra with a pale scutellar patch 2... ee ee ete Species 2, 3. 
Elytra without a pale seutellar patch . . . . . . - + + + + + + + Species 4-7, 
Prothorax feebly and the elytra strongly fasciculate . . . - »- + + + + + Species 8. 
1. Oxypterus denticollis, sp.n. (Tab. XXIV. figg. 4, 4a.) 
Subovate, shining, black, the antennz and the tips of the tarsi reddish ; densely squamose, the scales on the 
head, along the middle of the prothorax, and at the base of the elytral suture, fulvous, becoming blackish- 
brown at the sides and base of the prothorax, those on the elytra almost entirely blackish-brown, except 
upon the very large, sharply-defined, brown or brownish-white patch extending down the apical declivity 
to the tip, the elytra with a few blackish, semierect, setiform scales on the dorsal prominences; the 
scales on the legs pale brown, the femora annulate with darker brown, greyish at the base. Head closely 
punctate, the eyes rather narrowly separated ; rostrum closely punctate and subcarinate, bare in its 
outer half, the antenne inserted a little behind the middle, joints 1 and 2 of the funiculus equal in 
length, the club oblong-ovate. Prothorax much broader than long, abruptly narrowed and strongly 
constricted in front and the sides nodose immediately behind this, dilated at the base, the base itself 
deeply bisinuate, with the median lobe much produced; closely punctate, gibbous and binodose 
at the middle, and also feebly binodose at the apex. Elytra very much wider than the prothorax, 
gibbous, subtriangular, produced at the apex, the humeri swollen and laterally prominent, oblique in 
front; coarsely seriate-punctate, each elytron with the second interstice raised and setose for a short 
distance at about the middle and with some other small scattered setigerous prominences nearer the base. 
Beneath closely punctate. Legs short and stout; femora dentate ; tarsal claws very small, contiguous 
at the base. 
Length 5-54, breadth 3-33 millim. 
Hab. Mexico (Mus. Brit.), Jalapa (Hoge). 
Two specimens, varying in the colour of the scales on the apical declivity. The 
very short prothorax, with obtusely dentate, trisinuate sides, a binodose dorsal hump, 
and produced median lobe, and the broad, subtriangular, gibbous elytra, with a very 
large pale apical patch, readily distinguish this curious insect. 
9. Oxypterus torvidus. 
Oxypterus torvidus, Faust, Stett. ent. Zeit. 1896, p. 40°. 
Hab. Panama, David (Champion).—Venezve.a, San Esteban *. 
One specimen, agreeing perfectly with the type. 
3, Oxypterus fasciculosus, sp. n. (Tab. XXIV. figg. 5, 5a.) 
Subovate, convex, black, the antenne and the tips of the tarsi ferruginous ; densely clothed with cinereous or 
pale brownish-ochreous scales, the prothorax and a large triangular space on the basal half of the elytra 
mottled with brown, the elytra with a rather large oblong scutellar patch and a transverse or curved 
streak on each side of this at the base whitish or ochreous, the upper surface also set with very short, 
stout, blunt, erect, scattered sete ; the prothoracic and elytral elevations each with a fascicle of longer 
3 RR 2 
