GERAUS. 299 
the interstices flat and asperato-punctate, 2-6 with a double, and the others with a single row of scales. 
Beneath closely punctate. Prosternum without definite impression, unarmed in the g. First ventral 
segment depressed down the middle in the ¢. Anterior coxe separated by a little less than their own 
width, Tibi somewhat hairy, all sharply unguiculate at the apex in both sexes, the intermediate and 
. posterior pairs widened at the tip. 
Length 4-44, breadth 2-24 millim. (¢ 2.) 
Hab. Mextco, Tehuantepec (U.S. Nat. Mus.), Campeche in Yucatan (Leseleuc), 
Temax in N. Yucatan (Gauwmer); Nicaragua, Chontales (Janson). 
Sent us in abundance by Mr. Gaumer. A single specimen only ( 2 ) from Nicaragua. 
Very like G. fonsilis (Boh.), a species occurring with it in Yucatan, but with the 
vestiture sparser and finer above, the prothorax with fine hair-like scales on the disc 
and a faint submarginal band of coarser scales on each side, the elytral interstices each 
with one or two lines of setiform scales, the anterior tibiz strongly unguiculate in the 
male. The unarmed prosternum, darker legs, immaculate elytra, &c., separate 
G. gaumeri from G. submaculatus. 
79 Gerzus puellus, sp. n. 
Oblong-elliptic, narrow, shining, nigro-piceous; above somewhat thickly clothed with narrow, yellowish-white 
scales, which become finer and hair-like on the disc of the prothorax, those on the elytra arranged in two 
lines down each interstice, 1 with one line only, the vestiture of the under surface closer and coarser. 
Head finely punctate; rostrum arcuate, a little longer than the head and prothorax, moderately stout, 
thickened towards the base, closely punctate, the antenne inserted at about the middle, the funiculus 
slender, the club ovate. Prothorax transverse, gradually and arcuately narrowing from the base, feebly 
constricted in front; densely punctate, with indications of a smooth median line. Scutellum small, 
bare. Elytra oblong-subtriangular, very little wider than the prothorax; finely punctate-striate, the 
interstices rugulosely punctate. Beneath densely punctate; first ventral segment slightly depressed down 
the middle. Prosternum unimpressed behind the transverse subapical groove. Anterior coxe well 
separated. Legs rather long; anterior and intermediate tibiw strongly unguiculate, 
Length 3, breadth 14 millim. (¢.) | | 
Hab. Mexico, Tepetlapa in Guerrero (HZ. H. Smith). 
- One male. Smaller than G. tonsilis, the vestiture not so close, finer on the disc and 
somewhat condensed along the sides of the prothorax, and more regularly arranged on 
the elytra, the anterior and intermediate tibie (¢) strongly unguiculate. G. puedlus 
has somewhat the facies of Nicentrus lineicollis. 
80. Gerseus candidus, sp.n. (Tab. XVI. figg. 14, 14a, ¢.) 
Oblong-rhomboidal, black ; densely clothed with oblong pure white or whitish scales, which are clustered into 
about three or four compact rows down each elytral interstice, the scales on the under surface larger, 
hiding the sculpture. Head closely punctate; rostrum arcuate, longer than the head and prothorax, 
stout, tapering towards the tip, closely punctate, that of the Q bare and almost smooth from about the 
basal third, the antenne inserted at (¢) or behind (Q) the middle, the antennal club stout, ovate. 
Prothorax transverse, subconical, feebly constricted in front; densely, finely punctate, with indications of 
a raised median line. Scutellum almost bare. Elytra subtriangular, rather long, flattened on the disc 
at the base; finely punctate-striate, the interstices densely rugulosely punctate. Beneath densely 
punctate. Prosternum unarmed, hollowed down the middle in the g. Anterior tibiw in the ¢ sinuous 
within and feebly unguiculate at the apex. 
Length 4-42, breadth 2-2;'; millim. (¢ 2.) 
20Q 2 
