266 RHYNCHOPHORA. 
cinereous scales, which on the prothorax are transversely arranged, the elytra each with two trans- 
verse black spots on the outer part of the disc—one, large, a little before the middle, the other, small, 
near the apex. Head with a few minute punctures, transversely grooved between the eyes; rostrum 
arcuate, long and slender, slightly thickened at the base, finely striate-punctate, longer and almost smooth 
in the @, the antenne inserted at a little behind the middle in the d and nearer the base in the 9. 
Prothorax transverse, rounded at the sides anteriorly, much narrowed in front; closely punctate. Elytra 
subtriangular, narrowly punctate-striate, the interstices flat and asperato-punctate. Beneath closely 
punctate. Prosternum with a transverse, smooth, subapical fovea, and a fovea on each side of it. 
3. Prosternum tumid on each side of the very deep transverse subapical excavation, and armed with two 
short, porrect spines, which in fully-developed examples are about as long as the tarsi; first ventral 
segment broadly excavate and subglabrous down the middle. 
Length 34-44, breadth 2-23 millim. (¢ @.) 
Hab. Mexico (Mus. Brit.), Jalapa (Iége) ; Guaremata, Sabo and Chacoj in Vera 
Paz (Champion), 'Trece Aguas (U.S. Nat. Mus.). 
Fourteen specimens, eight of which are from Sabo. Less elongate than G. seniiis, 
the second elytral spot placed nearer the outer margin, the short prosternal spines 
straight, the ventral excavation of the male deeper and almost bare, the deep 
prosternal excavation in this sex limited on each side by a curved prominence, the 
mandibles without visible tooth at the sides beneath. 
9. Gereus trinotatus, sp.n. (Tab. XIV. figg. 27, 27 a, 3, var.) 
Subrhomboidal, black or piceous, the antennz, rostrum, prosternal spines, and legs in part, usually more or 
less ferruginous, the elytra shining ; thickly clothed with rather coarse, narrow, flavo-cinereous scales, 
which on the prothorax are transversely arranged, the elytra with a common, subquadrate patch on the 
suture near the apex and an interrupted transverse patch on the disc before the middle infuscate or 
black. Head closely punctate, transversely grooved between the eyes; rostrum long, arcuate, rather 
slender, thickened at the base, striate-punctate, longer, flatter, and smoother in the 9, the antenne 
inserted at the basal third in the 9 and at a little nearer the middle in the ¢. Prothorax transverse, 
rounded at the sides anteriorly, much narrowed in front, closely punctate. Elytra subtriangular, 
narrowly punctate-striate, the interstices flat and asperato-punctate. Beneath densely punctate. 
Prosternum with a smooth deep subapical fovea. 
Var. The transverse dark patch on the disc of each elytron reduced to two small spots, the inner spot in one 
specimen (fig. 27) coalescent with the common subapical patch. 
$. Prosternum with a large, deep, smooth, oval cavity extending forward to the transverse fovea in front, 
and armed with two very long spines, which are curved downward at the tip; first ventral segment 
slightly depressed down the middle. 
Length 43-5, breadth 22-23 millim. (¢ @.) 
Hab. Nicaracua, Chontales (Belt); Panama, Bugaba (Champion). 
Three specimens from each locality, those from Chontales (taken as the types) 
somewhat abraded and those from Bugaba with the transverse dark patch on the disc 
of each elytron reduced to small spots. The four males agree in the form of the 
prosternal spines and all have a dark subquadrate sutural patch. The mandibles are 
hollowed at the sides beneath. 
10. Gereus tenuispinis, sp.n. (Tab. XIV. figg. 28, 28a, 3.) 
Very like G. trinotatus, but with the anterior elytral patch more or less triangular and placed about midway 
between the base and apex, the common subapical patch reduced to a small or oblique spot on each side 
