540 CUCUJIDE. 
contracted before the posterior lateral denticle, which is prominent, very convex 
transversely at the constriction, so that the fine intra-lateral stria becomes there 
indistinct, highly polished. Elytra highly polished, with a single well-marked intra- 
humeral stria; black, with a pale yellow fascia, interrupted at the suture, just before 
the middle, and a smaller spot behind the middle. One specimen. 
DEINOPHLUS, gen. nov. 
Acetabula anteriora occlusa. Coxe omnes late distantes. Epipleure late. Cetera fere ut in generibus 
Lemophleo et Siluanophleo. 
While the species of Parandrita and Silvanophieus have the epipleuree very much 
reduced, the reverse is the case with the two extremely remarkable Lewmophici for 
which this genus is established. They have no resemblance to any of our species of 
either of those genera. 
1. Deinophleus ducalis, sp.n. (Tab. XVII. fig. 11, ¢-) 
Deplanatus, politus, piceus, elytrorum disco flavescente ; antennis erassis, clavatis; prothorace basin versus 
angustato, lateribus argute marginatis, nullo modo denticulatis, carina intra-laterali argute elevata ; 
elytris striatis, ad apicem costatis. 
Long. 34-4 millim. 
Mas, capite majore, epistomate medio dentibus magnis duobus liberis armato. 
Hab. Mexico, Omilteme in Guerrero 8000 feet (H. H. Smith); GuaTEMALA, Capetillo 
(Champion). 
Surface of head sparingly punctate ; eyes prominent, free behind. Thorax sparingly 
punctate, shining, the lateral margin remarkably definite and without any trace of 
sinuosity or denticles. Scutellum triangular, moderately large. lytra finely and 
sparingly punctate, flat, the flat portion limited by a fine raised margin; each with 
three strie on the flat part, which at the extreme tip give place to short, coarse, 
longitudinal folds. Hind coxe broadly separated. 
This species is remarkable on account of the structure of the male head. The 
middle of the epistome projects as two large, free processes over the labrum. 
The mandibles are extremely broad at the opposed faces of their tips, and each is 
three-toothed there. 
2. Deinophleus sinuatus, sp.n. (Tab. XVII. fig. 12, apices of the elytra.) 
2. Fulvo-ferrugineus, politus, elytris flavo-bimaculatis ; antennis pedibusque testaceis, illis clavatis ; prothorace 
quadrato, lateribus rectis ; elytris dorso deplanato, apice bisinuato, utrinque fortiter plicato. 
Long. 2? millim. 
Hab. Panama, Volcan de Chiriqui (Champion). 
We have received only two examples of this remarkable insect and there is no doubt 
both are females. The antenne are stout, with the apical three joints broader. The 
head is long and narrow, flat, very polished. Thorax a good deal narrower than the 
