GERAUS. 303 
elongate than G. x-notatum (here placed amongst the species with spined prosternum), 
the rostrum is differently formed, the elytra have narrower strie and smoother 
interstices, &c. 
87. Gerzeus corrugatus, sp. n. 
Subrhomboidal, shining, black, the antennz, apex of the rostrum, knees, and bases of the tarsi ferruginous ; 
the sides of the prothorax, the under surface, and legs sparsely clothed with minute, hair-like, and the 
elytral interstices with a few scattered, coarser, setiform, whitish scales, the scutellum albo-squamose. 
Head densely punctate, unimpressed between the eyes, which are large and rather narrowly separated ; 
rostrum moderately stout, about as long as the head and prothorax, abruptly curved downwards from 
near the base, striate-punctate, flattened and smoother in its apical half. Prothorax short, small, 
subconical, strongly coustricted in front; longitudinally strigose, the narrow depressed spaces shallowly, 
confluently punctate. Scutellum small. Elytra much wider than the prothorax, convex, subtriangular, 
depressed along the suture anteriorly, the humeri somewhat swollen; deeply striate, the strie feebly 
punctate, the interstices somewhat convex, each with a scattered irregular row of very fine punctures, 
seneath finely punctate. Prosternum deeply sulcate, Anterior cox separated by less than half their 
own width. Legs moderately long. 
Length 24, breadth 14 millim. 
Hab.. GuaTEMALA, Cerro Zunil 4000 feet (Champion). 
One specimen, with most of the setiform scales of the elytra abraded. The longi- 
tudinally strigose prothorax, the more prominent humeri, the squamose scutellum, 
the stouter mandibles, and the deeply sulcate prosternum separate G. corrugatus from 
G. inchoatus. This insect is also not unlike Ahianinus carinirostris. 
88. Gereus capillosus, sp. n. 
Elliptic, flattened above, shining, piceous, the rostrum, antenna, legs, and abdomen ferruginous, the elytra 
more or less mottled with reddish-brown; the sides and under surface of the prothorax clothed with 
long, hair-like, ochreous scales, the elytral interstices each with an interrupted line of similarly-coloured 
decumbent sete down each interstice, the rest of the under surface and the legs sparsely set with shorter 
and finer hair-like scales. Head closely, minutely punctate, transversely depressed between the eyes ; 
rostrum arcuate, a little longer than the head and prothorax, slender, thickened towards the base, finely 
punctate, the apical portion smoother, the antenne inserted behind the middle, the antennal club ovate. 
Prothorax transverse, somewhat rounded at the sides, constricted and narrowed in front; sparsely, 
finely punctate, except along the middle. Scutellum subquadrate. Elytra wider than the prothorax, 
rounded-triangular, the sutural region depressed below the base; narrowly striate, the interstices finely 
uniseriate-punctate, flat. Beneath rather sparsely punctate; first ventral segment depressed down the 
middle. Prosternum with a flattened, smoother space down the centre. Anterior coxe separated by a 
— little more than their own width. Legs rather short ; tibie feebly unguiculate. 
Length 23-8, breadth 1j-13 millim. (3?) . 
Hab. PanaMa, Volcan de Chiriqui (Champion). 
Two specimens, varying in the length of the rostrum. This insect resembles a 
Texan insect (¢) sent me by Mr. Wickham as Centrinus capillatus, Lec., but it is 
smoother and flatter, the rostrum is longer and more slender, the vestiture is longer, 
the anterior tibie are feebly unguiculate, &c. The mandibles are slightly decussate 
at the tip. 
