ATRICHIS. 535 
scattered irregular patches, the elytra sometimes with a short, oblong, dark streak on the third interstice 
towards the apex, the usual short sete inconspicuous. Head densely punctate, flattened between the 
eyes, which are narrow, rather prominent, and somewhat distant ; rostrum short, stout, strongly curved, 
widened, depressed, and sulcate towards the base, with a smooth raised space along the centre, the base 
densely and the sides rugosely punctate, the antennse inserted a little behind the middle, joint 2 of the 
funiculus much shorter than 1, the club ovate. Prothorax transverse, rounded at the sides, abruptly 
narrowed in front; densely, finely punctate and feebly carinate. Scutellum rather small. Elytra 
oblong, a little wider than the prothorax ; seriate-punctate, the interstices rugulose, more or less convex, 
3, 5, 7, and 9 narrowly costate. Beneath densely punctate. Legs short and moderately stout; femora 
clavate, unidentate, the anterior pair with a small additional tooth exterior to the other. 
Length 64-83, breadth 24-33 millim. 
oO 
Hab. Mexico, Acapulco (Hége). 
Six specimens, probably including both sexes. Very like A. costirostris, but with 
the rostrum more curved, depressed at the base in both sexes, and with a smooth 
raised space along the middle; the eyes narrower; the prothorax abruptly narrowed 
anteriorly, and more finely punctate ; the anterior femora bidentate * 
2. Atrichis costirostris, sp. n. (Tab. XXVI. figg. 20, 20 a, 2.) 
Elongate-ovate, convex, black, the antenne obscure ferruginous; mottled above with rather coarse, fulvous 
and whitish scales, the latter condensed on the prothorax into an oblong median spot at the base and a 
faint, curved, interrupted line on each side of the disc, and on the elytra into numerous scattered 
irregular patches, the vestiture of the legs and under surface whitish and fulvous intermixed, the 
prothorax, elytra, and legs also with short, decumbent, scattered setee. Head densely punctate, flattened 
between the rather narrowly separated, transverse, prominent eyes; rostrum short, stout, curved, 
widened towards the base, the basal portion rugosely punctate and sharply carinate, the apical portion 
thickly punctate, the antenne inserted at about the middle, joint 2 of the funiculus slightly shorter than 1, 
the club stout, ovate. Prothorax transverse, rounded at the sides, narrowed and feebly constricted in 
front, bisinuate at the base; densely punctate and obsoletely carinate. Scutellum rugulose. Elytra 
oblong, a little wider than the prothorax ; seriate-punctate, the interstices densely rugulose, somewhat 
convex, 3, 5, 7, and 9 narrowly costate. Beneath densely, coarsely punctate. Legs short and stout, 
the femora clavate and unidentate, the tooth on the anterior pair sharp. 
Length 8,,-84, breadth 33-3? milim. (¢ @.) 
Hab. Mexico (ex coll. Flohr), Jalapa (Hoge). 
Two specimens, the male having the rostrum depressed at the base and the median 
carina longer. A. costirostris superficially resembles Celosternus consputus. 
§§ Antennal club elongate or oblong. 
3. Atrichis semicostatus, sp. n. 
Elongate-ovate, convex, shining, black, the antennz obscure ferruginous; rather sparsely clothed with 
intermixed, coarse, ochreous and whitish scales, those on the prothorax large, the elytra also with patches 
of darker scales, the upper surface and legs with short, scattered, decumbent setz. Head densely 
punctate, the eyes transverse, rather prominent, and somewhat narrowly separated; rostrum very stout, 
a little longer than the prothorax, curved, rugosely punctate, carinate, and slightly widened at the base, 
the apical half thickly punctate, smooth along the middle, the antenne inserted midway, joint 1 of the 
funiculus nearly twice as long as 2, 2-7 together very little longer than the elongate club. Prothorax 
transverse, much narrowed in front, the sides rounded anteriorly and parallel behind, the base bisinuate ; 
* The insect is more elongate than represented by our artist. 
