of the Amazons Valley. 89 
vertex, a curved impression inside and in front of each eye; prothorax 
minutely and sparsely punctured, about equal in length and breadth, 
narrowed anteriorly, the sides rounded, bisulcate, no trace of the two 
middle sulci, the anterior tubercles very small, but distinct; scutellum 
transverse, rounded behind; elytra very minutely punctured, with 
eight lines of very fine punctures on each; body beneath dark chestnut, 
finely punctured ; legs and antenne pale ferruginous. Length 3 lines. 
Anarmostes laticollis. 
A. modice elongatus, piceo-fuscus; prothorace subquadrato; elytris 5- 
costatis, interstitiis biseriatim punctatis. 
Hab. Ega. 
Moderately elongate, dark pitchy brown; head coarsely punctured ; 
prothorax a little longer than broad, subquadrate, and very slightly 
contracted at the base, the disk with four costs, the outermost abbre- 
viated, the intervals with large shallow punctures; scutellum not 
hollowed out; elytra parallel, each with five well-marked costz, the 
intervals with a double row of large irregular punctures ; body beneath 
dark brown, the pectus granulated, the abdominal segments with nu- 
merous very delicate longitudinal but more or less interrupted lines ; 
legs pitchy brown, roughly punctured; tarsi and antenne ferruginous. 
Length 4 lines. 
Resembling Anarmostes sculptilis from Rio; but a much shorter 
prothorax, scarcely contracted at the base, no appearance of granu- 
lations in the intervals of the costz on the elytra, and the scutellum 
free from the deep central impression of that species will serve, among 
other characters, to distinguish it. In proposing the genus Anarmostes 
(huj. op. vol. i. p. 110), I spoke of it as being allied to Sosylus; the 
posterior coxe, however, although not contiguous, are sufficiently 
approximate to bring it into the series of those genera which group 
themselves around Colydium. 
Anarmostes bicolor. 
A, angustior, fuscus; prothorace subelongato, basi angustiore; elytris 
rufo-castaneis, 5-costatis, interstitiis biseriatim punctatis. 
Hab. Ega. . 
Narrower than the last, the prothorax longer and more contracted 
at the base, dark brown in colour, while the elytra and legs are of a 
chestnut-red; the abdomen, dark brown beneath, has the longitudinal 
lines coarser and more marked. In Anarmostes sculptilis the prothorax is 
still longer and more contracted at the base, while it is also broader in 
front, and the elytra are proportionally longer than in either of the two 
other species. Length 4 lines. 
VOL. II. H 
