144 . RHYNCHOPHORA. 
This species, although very variable, may always be distinguished from C. instabilis 
and C. similis by the form of the thorax. Most of the examples I have seen are 
labelled “ Epicwrus subfasciatus, Chevr.” In some individuals there are indications of 
two vague dark fasciz across the elytra; but in the majority of specimens these are not 
evident. I have seen but few examples, all differing more or less from one another. 
I cannot identify the sexes with certainty. 
2. Cleistolophus similis. 
Epicerus similis, Chevy. Bull. Soc. Ent. Fr. 1880, p. 1xi’. 
Elongatus, niger, griseo-squamosus ; prothorace subconico, squamoso, obsolete punctato. 
Long. 83-15 millim. 
Hab. Mexico, Tapachula in Chiapas (Hége); Brivise Honpuras (Blancaneaua) : 
GuateMaLa (Salvin, Sallé), Zapote (Champion) ; Costa Rica! (van Patten), Caché 
(Rogers). 
This isa very variable species. It is closely allied to C. instabilis, but is more 
densely covered with scales, and the punctuation of the thorax is quite indistinct ; 
usually the punctures of the elytra are fine, but when the example is deprived of 
scales these punctures appear considerably larger, though not so large as they are in 
C. instabilis ; the scales are lighter in tint than those of C. instadilis, and some of them 
—especially about the legs and the underside of the head—have a feeble metallic tint. 
The rostrum is only feebly impressed on the middle, and towards the tip is glabrous 
and shining; there is a minute fovea between the eyes. ‘he thorax is not so long as 
broad and is narrowed towards the front; it is squamose, and very indistinctly punc- 
tured. The elytra are squamose and bear series of fine punctures. 
I have before me a series of about forty examples that I assign to C. similis; they 
vary greatly in size, and a good deal in other points, such as the colour of the 
squamosity and the size of the punctures on the thorax and elytra, but I can find no 
means of distinguishing more than one species. The smaller examples very much 
resemble some of the varieties of C. subfasciatus, while, on the other hand, some of the 
larger specimens come very near to C. instabilis. 
A specimen of Epicerus similis, from Costa Rica, communicated from Chevrolat’s 
collection by Dr. Aurivillius, agrees exactly with examples our editors have received 
from Costa Rica. An example in my own collection was ticketed Hpicwrus mopsurus, 
Jekel. 
3. Cleistolophus instabilis, sp.n. (Tab. VI. fig. 9.) 
Elongatus, niger, plus minusve fusco-squamosus ; prothorace subcylindrico vel subconico, fortiter punctato, 
antice leviter angustato ; rostro in medio late impresso. 
Long. 9-14 millim. 
Hab. Guatemaua, Senahu, San Juan, Chiacam, San Géronimo, all in Vera Paz 
(Champion), Coban (Conradt). 
