222 PHYTOPHAGA. 
long as, the prothorax, rather feebly sinuate-emarginate at the base, with prominent subangular humeri ; 
the disc moderately convex, bifoveate at the base, deeply foveate in the centre before the middle, and 
longitudinally depressed towards the sides beyond the middle, with .interrupted rows of coarse deep 
punctures, the interstices smooth, and here and there transversely connected; the margins broadly 
expanded, becoming narrow at the apex, smooth and reticulate, hyaline from a little below the base, and 
separated from the disc by a row of deep foves. Claws angularly dilated at the base. 
Length 43-5, breadth 33-4} millim. 
Hab. Nicaragua, Granada (Sallé) ; Cogra Rica (colls. Baly and Janson). 
Four specimens. Closely allied to C. erratica, Boh., but differing from it in the 
elytra having a broad castaneous ramus extending from the disc across the margins at 
the base. From C. signifera, Herbst (=guttata, Oliv.), it may be known by its more 
triangular shape, and by the coarser punctuation and different markings of the elytra. 
The elytra have a transverse subquadrate dark patch across the suture before the 
7 middle, this being larger than in C. erratica,. 2 i 
b, Axilerior Clans evgviorly Lilaled, ane termed le ot prelerior clawa peclinste atthe bree. 
CTENOCHIRA. 
Coptocycla, Sect. II., Boheman, Monogr. Cassid. iii. p. 430. 
Ctenochira, Chapuis, Gen. Col. xi. p. 409 (1875). 
This genus, or section of Coptocycla, contains nearly one hundred described species. 
It is probably confined to Tropical America, ranging as far north as the highlands of 
Mexico. Ctenochira differs from Coptocycla * in having the claws of the anterior tarsi 
angularly dilated, and those of the intermediate and hind tarsi pectinate, at the base. 
Neither Boheman nor Chapuis appears to have noticed this, both authors giving the 
claws as “pectinate.” ‘Twenty-two species are here enumerated from within our limits, 
but some of these are probably not really distinct. Certain groups of species are 
indicated, the members of which differ inter se in various details of coloration, e. g.: 
(1) C. plicata, C. melanota, C. sagulata, and C. stali; (2) C. vivida, C. tabida, and 
C. punicea; and (3) C. infantula, C. palmata, and C. dissimilis. Many of these forms 
have been collected together in great abundance by Mr. H. H. Smith at Teapa in 
Tabasco. The antenne have the third joint short, not longer than the second. 
The elytral margins partly infuscate, with an oblong translucent space . . . Species 1. 
The elytral margins with two dark fascie (obsolete and the black discoidal patch 
simply emarginate at the sides in some specimens of C. stali) . . . . . Species 2-5. 
The elytral margins with a single (post-median) dark fascia. . . . . . . Species 6-8. 
The elytral margins partly sanguineous . . ss 6 6 « 6 6 . «Species 9. 
The elytral margins flavous, the inner part black from the middle forwards. . . Species 10. 
The elytral margins entirely flavous. . 
The disc entirely or in great part black. . . . ... . - « . »« Species 11, 12: 
The disc with a sharply defined black annulus along the outer part - « . . Species 13. 
The disc narrowly bordered externally with black or sanguineous . . . . Species 14-16. 
The disc black, reticulated with yellow. . . 2... 2... ee ee Species 17. 
* The Central-American species only haye been examined. 
