268 RHYNCHOPHORA. 
Hub. Panama, Bugaba (Champion), Tabernilla and Lion Hill (Busck, in U.S. Nat. 
Mus.). , 
Three males. Shorter and more ovate than G. tenwispinis, the prothorax and elytra 
faintly trilineate with whitish, the interrupted dark patch on the elytra placed further 
forward and at the middle of the disc. The third and fifth elytral interstices have 
three, and the others two, rows of scales. | 
13. Gereeus balaninoides, sp. n. (Tab. XIV. figg. 31, 31a, ¢.) 
Oblong-subrhomboidal, rather dull, nigro-piceous, the antennz (the club excepted), prosternal spines, apical 
half of the rostrum, and the legs in part, ferruginous ; rather sparsely clothed with narrow pale ochreous 
scales, which are transversely arranged on the prothorax, the elytra with a few scattered intermixed 
darker scales, the vestiture of the under surface a little closer and paler. Head sparsely punctate, 
transversely grooved between the eyes; rostrum long, arcuate, rather slender, striate-punctate, the 
antennge inserted behind the middle, the antennal club oblong-ovate. Prothorax transverse, densely, 
finely punctate. Elytra subtriangular, narrowly punctate-striate, the interstices flat and asperato-puuctate. 
Beneath densely punctate. Prosternum with a deep transverse subapical fovea, and armed with two 
very long porrect spines, which are slightly curved upward at the tip, the space between them broadly 
flattened and smooth, First ventral segment unimpressed. Anterior tarsi with a few bristly hairs, the 
bilobed third joint broad. 
Length 4, breadth 2 millim. (¢.) 
Hab. Panama, Volcan de Chiriqui 4000 feet (Champion). 
One male. Smaller, duller, and narrower than G. serratispinis, the vestiture closer, 
the elytra with fewer intermixed darker scales, the prosternal spines (which are as long 
as the rostrum) not serrate, &c. G. balaninoides is a little more elongate than 
G. tenuispinis, the vestiture is sparser and finer, and the scattered dark scales on the 
elytra give a mottled appearance to the surface. It is very like a Balaninus. 
14. Gerzeus biplagiatus, sp. n. 
Elliptic, piceous, the antenne, rostrum, and legs more or Jess ferruginous; thickly clothed with narrow, 
ochreous scales; the elytra each with a sharply-defined transverse blackish patch on the outer part of the 
disc at about the middle, the scales on the interstices arranged in two or three lines (the first with one 
line only from near the base); the vestiture of the under surface dense and whitish. Head densely 
punctate; rostrum rather more than half the length of the body, strongly arcuate, slender and almost 
smooth, abruptly thickened, squamose and laterally punctate at the base, the antenne inserted at the basal 
fourth, the club acuminate-ovate. Prothorax strongly transverse, rounded at the sides anteriorly, 
constricted in front; densely, finely punctate. Scutellum squamose. Elytra subtriangular, the humeri 
rounded; finely punctate-striate, the interstices rugulosely punctate. Beneath densely, finely punctate. 
Prosternum with a smooth, deep, transverse fovea towards the apex and also transversely excavate 
behind each of the eyes. Anterior coxe separated by fully their own width. Legs moderately long; 
anterior tibie unguiculate. 
Length 23, breadth 17 millim. ( 9.) 
Hab. Nicaragua, Chontales (Janson). 
One specimen. This insect resembles G. rectispinis, but it is very much smaller, 
the rostrum (2) is abruptly thickened at the base, the antenne are inserted at the 
basal fourth, &c. The prosternum is doubtless bispinose in the male. 
