272 NITIDULIDZ. 
Of short, rounded form. Antennz with very broad club. Head shining, very coarsely 
punctate. Thorax very short and broad, bisinuate at the base, the hind angles nearly 
rectangular, the surface shining, very coarsely punctate. Scutellum moderately punctate, 
with the apex smooth. LElytra rather shining, with regular, serial, moderately fine, 
oblong punctures, and very distinct serial pubescence. Hind body coarsely punctured. 
Legs pale red. Male with the last ventral plate broadly truncate behind, only feebly 
bisinuate, and not at all angulate in the middle: with three or four very distinct 
denticles at the sides behind. 
Closely allied to C. sordidus, but rather smaller and more convex, with the pubescence 
rather longer and more distinct, and the last ventral plate of the male differently formed. 
Four specimens. The example from Chiriqui is much damaged and may not belong 
to the same species; it has no red mark on the elytra. 
7. Colastus inflatipennis, sp.n. (Tab. VIII. fig. 18, ¢ .) 
Brevis, latus, sat convexus, niger, nitidus, pubescens ; antennis pedibusque rufis, illarum clava nigra; prothorace 
fortiter punctato ; elytris seriatim sat fortiter punctatis, circa scutellum vage rufo-signatis, convexiusculis, 
apice declivo. 
Long. 3 millim. 
Hab. Panama, Tolé (Champion). 
Head moderately closely punctate. Thorax very strongly transverse, bisinuate at the 
base, the hind angles nearly rectangular, the punctuation somewhat coarse and rather close. 
Scutellum moderately closely punctate. Elytra with the serial punctuation rather fine. 
We have received only one specimen of this little Colastus, which will be, I think, 
easily recognized by the somewhat convex elytra being rather abruptly and broadly 
declivous behind. The example is a male, and has the hind margin of the last ventral 
plate bisinuate, and distinctly produced in the middle, but only feebly angulate; there 
are three or four fine lateral denticles. In general appearance this species resembles 
C. brevipes, the peculiar form of the elytra being only conspicuous when the insect is 
looked at in profile. 
8. Colastus vestitus, sp. n. 
Minus latus, sat convexus, dense pubescens, niger, elytris singulis plaga magna, antennis pedibusque rufo- 
testaceis, antennarum clava fusca; prothorace convexo, fortiter, profunde sat crebre punctato ; elytris 
subtilius seriatim punctatis. 
Long. 4 millim. 
Hab. Mexico, Mirador (Hoge); GuatTEmMaLa, Coban (Conradt) ; Nicaracua, Chontales 
(Janson).—Soutn America, Venezuela (Brit. Mus.). | 
Closely allied to C. datus and C. sordidus, but narrower, with more abundant pubes- 
cence, and with finer punctuation on the elytra; the hind margin of the last ventral 
segment in the male forms an angle most prominent in the middle, and each of the 
