MICROHYUS. 449 
6". The finer vestiture of the elytra about equally distributed. 
c’. Elytra much wider than the prothorax. 
a’. Legs moderately long ; prothorax trivittate ; elytral inter- 
stices feebly convex . . . . , oe ee ee we CPiNACEUS, SP. TL 
6°. Legs short; prothorax not vittate; elytral interstices 
strongly convex . . Lo - oe . brevipes, sp. n. 
d*, Elytra narrower, a little wider than the prothorax, the inter- 
stices convex . . . . 1 we eee ee ee ee ngusstatus, sp. 2. 
6’. Sete entirely pale ; elytral interstices narrow, convex . . pallidisetis, sp. n. 
6. Hlytra very little wider than the prothorax, the latter long and sub- 
cylindrical; third elytral interstice tuberculate. . . . . . . . minutissimus, sp. n. 
1. Microhyus montanus, sp. n. (Tab. XXII. fig. 5.) 
Subovate, dull, nigro-piceous, the tip of the rostrum and the legs in part ferruginous ; the vestiture fulvous, 
rather coarse, scattered, condensed into small patches on the prothorax and elytra, the upper surface 
also set with scattered, short, stout, clubbed, erect, fuscous set#, the legs setulose. Head closely, 
minutely punctate. Prothorax a little broader than long, narrowed and constricted in front, bisinuate 
at the base, closely, finely punctate. Elytra much wider than the prothorax, subparallel in their basal 
half, sinuate at the base, constricted below the prominent rounded humeri; deeply striate, the stric 
finely punctate, the interstices finely rugulose and almost flat, 3, 5, and 7 a little widened and each with 
a series of scattered prominences, 9 also with a prominence below the base. Beneath opaque, finely 
punctate. 
Length 2/-25, breadth 11-11 millim. 
Hab. GUATEMALA, Quiché Mountains (Champion). 
Two specimens. LEasily distinguishable by the tuberculate alternate elytral interstices. 
The elytra themselves are clothed with small, oval scales, these becoming more con- 
densed on the basal elevations ; the vestiture of the prothorax is piliform. 
2. Microhyus hystrix, sp.n. (Tab. XXII. figg. 6, 6a, 0.) 
Short ovate, dull, bluck or piceous, the tip of the rostrum, the antenne, and tarsi ferruginous; the vestiture 
fulvous, fine, rather scattered, condensed into a series of spots on each of the interstices 1, 3, 5, and 7, 
the upper surface also set with long, stout, clubbed, erect, fuscous setae, the legs with fine clubbed pallid 
sete. Head finely punctate. Prothorax a little broader than long, narrowing almost from the base, 
constricted towards the apex, the base deeply bisinuate; finely, rather sparscly punctate, the disc 
obsoletely canaliculate behind. Elytra much wider than the prothorax, subcordate, slightly constricted 
behind the humeri, the base deeply sinuate; striate, the strie finely punctured, the interstices broad, 
alutaceous, and almost flat, the alternate ones slightly wider. Beneath opaque, alutaceous, very sparsely, 
finely punctate. Intermediate coxe widely separated. 
Length 24-33, breadth 1}—21 millim. 
Hab. Panama, Bugaba (Champion). 
Numerous examples. Larger, broader, and duller than the N.-American MW. setiger, 
Lec., the elytral interstices wider and almost flat, the striz narrower, the sete 
ionger. 
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 4, January 1905. 3MM 
