ZENESIAS. 453 
longer than 1. Prothorax transverse, rather convex, narrowing from the middle forwards, bisinuate 
at the base; densely, finely punctate. Elytra subtriangular, rather short, one-half wider than the 
prothorax, the humeri rounded; finely seriate-punctate, the punctures subquadrate in shape, the 
interstices 3, 5, 7, and 9 sharply and narrowly, and 2, 4, 6, and 8 more feebly, costate. Beneath 
closely, rugulosely punctate. Mesosternum with a small prominence on each side in front of the 
intermediate cox. Metasternal plice dentiform. Femora rugosely punctate, sharply unidentate. 
Length 24-4, breadth 12-2 millim. 
oO 
Hab. Panama, Volcan de Chiriqui 2500-6000 feet (Champion). 
Found in abundance in Chiriqui. 
2. Ainesias nigronotatus, sp.n. (Tab. XXII. figg. 8, 8a.) 
Subovate, shining, piceous, the elytra rufo-piceous, the antenne and tarsi reddish; somewhat thickly 
clothed with rather coarse intermixed ochreous and whitish scales, the latter condensed into three faint 
vittee on the prothorax and some small scattered spots and an interrupted subapical fascia on the 
elytra, the elytral elevations clothed with black scales, the femora faintly annulate. Head densely, 
finely punctate, shallowly sulcate between the very large eyes, which are separated by a little less 
than the width of the rostrum; rostrum stout, about as long as the head and prothorax, strongly 
curved, rugulosely punctate, the antenne inserted at about the middle, joints 1 and 2 of the funiculus 
subequal in length. Prothorax transverse, narrowed from the middle forwards, the sides parallel 
behind, the base bisinuate; densely, finely punctate. Elytra one-half wider than the prothorax, 
subtriangular, slightly constricted below the rounded humeri; rather coarsely seriate-punctate, the 
interstices convex, 3 and 5 each with an oblong prominence near the base and another before the 
middle. Beneath closely, rugulosely punctate. Metasternum flattened posteriorly. Femora unidentate. 
Tarsal claws slightly thickened at the base. 
Length 32, breadth 2 millim. 
Hab. Mexico, Motzorongo (Lohr). 
One specimen. In this insect the elytra are variegated with ochreous, whitish, and 
black scales, the latter being almost confined to the elevations on the third and 
fifth interstices. 
3. Ainesias cavifrons, sp. n. 
Subovate, shining, nigro-piceous, the antennee (the club excepted), the outer half of the rostrum, the knees, 
and tarsi more or less reddish; variegated with rather coarse brown and ochreous scales, the latter 
condensed into three faint vittz on the prothorax, the upper surface also set with scattered, suberect, blunt, 
ochreous and fuscous setee. Head densely, finely punctate, hollowed between the moderately large eyes, 
which are separated by a little less than the width of the rostrum; rostrum longer than the head and 
prothorax, moderately stout, strongly curved, rugulose at the base, almost smooth in its apical half, the 
antennee inserted at the middle, joint 2 of the funiculus a little longer than 1. Prothorax much 
broader than long, rather convex, narrowed in front, bisinuate at the base; densely, finely punctate. 
‘Elytra subtriangular, rather short, more than one-half wider than the prothorax, slightly constricted 
below the obliquely truncated humeri, seriate-punctate, the interstices 3 and 5 each a little raised below 
the base and before the middle and the setz here becoming coarser and closer. Beneath rugulosely punctate. 
Metasternum depressed down the middle behind. Legs comparatively slender ; femora unidentate. 
Length 3, breadth 13 millim. 
Hab. Guatemaua, Senahu in Vera Paz (Champion). 
One specimen. Smaller than &. nigronotatus, the upper surface coarsely setose, the 
legs more slender, the prothorax relatively narrower, the humeri more prominent, &c. 
