Platypodidee and Scolytidee. 33 
pointed process, dark brown and shiny at the apex ; the 
dorsal surface of the prothorax is flattened, with an obscurely 
punctured surface and with long erect hairs, especially 
laterally, the base being margined and the medial nodosity 
slight but distinct. Scutellum small, subtriangular, and shiny. 
Elytra equal in breadth and barely one-fifth longer than the 
prothorax, striate-punctate, the punctures large, shallow, and 
piliferous ; the interstices flat and without punctures, the 
declivity commencing rather abruptly at the apical third, 
depressed on each side of the suture; the apex bluntly 
rounded, with a well-defined margin. 
Length 1:7, breadth *8 mm. 
Hab. Trinidad (bred from cacao-twigs, Urich). 
Type in the British Museum. 
Somewhat similar to X. dichrous, Kichh., and X, laticollis, 
Bldf., but separated from both by the non-tuberculate 
elytra, and from the former by the antennal club, which is 
normal, 
Xyleborus improcerus, sp. n. 
Pitchy black, except the apical third of the elytra and the 
lees and antenna, which are testaceous. Front subconvex, 
the surface shagreened, with somewhat scattered, large, but 
shallow piliferous punctures and a transverse row of hairs 
over the mouth; eyes elongate and slightly emarginate. 
Prothorax subglobose, broadest at the centre, the anterior 
edge rounded and furnished with two large, central, recurved 
spines, rugose anteriorly as far as the central transverse 
gibbosity and posteriorly closely and coarsely punctured ; the 
whole surface covered with minute hairs, margined basally 
and laterally beyond the middle; the centre of the base 
furnished with a tuft of stiff erect hair. Scwtel/wm small, 
black, and shiny. lytra of equal breadth and one-ninth 
shorter than the prothorax, laterally rounded from the basal 
third to the apex ; the oblique declivity commencing from the 
basal fourth, obscurely striate-punctate, the interstices having 
a double row of punctures bearing semi-recumbent hairs ; the 
sutural interstices depressed, coarsely punctured and hairy, 
the puncturation becoming fainter on the apical portion ; the 
basal margin extends laterally more than half-way up the sides 
of the declivity. The abdomen hairy and the prosternal 
intercoxal process broad. 
Length 3-2 mm. 
Hab. Siam (Fry Coll.). 
Type in the British Museum. 
Another specimen has been obtained by Prof, Baker in 
British North Borneo. 
Ann, & Mag. N. Hist, Ser. 9. Vol, vii. 3 
