CALYPTOCEPHALA. 129 
Var, The elytra more broadly, especially posteriorly, bordered with ceruleous, the outer limb sometimes ferru- 
ginous ; the sides of the prothorax also broadly bordered with czruleous. 
Hab. Guatemata, Cubilguitz, Chacoj, La Tinta, Teleman, and Panima, all in Vera 
Paz (Champion), Panzos (Conradt) ; Nicaragua, Chontales (Belt, Janson). 
The type of this species has the thorax entirely testaceous, the elytra bordered with 
-ceruleous. The variety is coloured like C. gersteckeri, Boh., from Bolivia; but it 
differs from that insect, to judge from the description, in the more coarsely punctured 
margins of the elytra. In C. marginipennis the elytral margins are very coarsely, 
‘closely, and irregularly punctured, the punctures very much coarser than in C. brevi- 
corms ; of this no mention is made by Boheman?. The ceruleous border does not 
always extend to the lateral and apical margins of the elytra, these parts being some- 
times ferruginous, both in the type and in the variety. The tarsi are sometimes stained 
with piceous. The antenne are entirely black. 
3. Calyptocephala discoidea. (Tab. V. fig. 9.) 
Subovate, rather convex; cxruleous, the elytra with the entire disc from the base to about one-third from the 
apex flavo-testaceous or stramineous ; the scutellum ceeruleous, ferruginous, or testaceous ; the antenne 
black or piceous, the basal one or two joints sometimes rufo-testaceous; the under surface and legs 
- entirely flavo-testaceous. Head smooth, depressed and canaliculate in the middle in front; antenney 
filiform, rather slender, moderately long. Prothorax short, moderately dilated at the sides, widest at the 
middle, the sides rounded in front and behind, the lateral margins not reflexed; the anterior lateral 
portions dec livous, not projecting beyond the median portion (as viewed from above), and somewhat oblique ; 
the base obliquely subtruncate on either side and with a broad median lobe; the disc convex, smooth, some- 
times with an irregular depression in the middle at the base, or with a fovea on either side behind; the 
margins flat, concave towards the disc, with a few irregularly scattered, moderately coarse, punctures. 
Scutellum smooth. Elytra about four times the length of, and one half broader than, the prothorax, deeply 
emarginate at the base, rapidly narrowing from about the basal third, the humeri rounded and prominent, 
the apices conjointly rounded ; the disc with regular rows of moderately coarse punctures, which become 
very fine towards the apex, the interstices smooth; the margins broadly expanded, very coarsely, irregularly, 
and somewhat closely punctured, the punctures coarser than those of the strie. Beneath shining, smooth. 
‘Length 5-54, breadth 4 millim. 
Hab. Panama, Bugaba (Champion). 
Many specimens. Allied to C. marginipennis, but differing from it in having the 
prothorax entirely ceruleous, shorter, more declivous in front (thus appearing less 
emarginate), and depressed on either side of the disc, the lateral margins not at all 
reflexed ; the elytra more rounded at the shoulders. The margins of the elytra are 
coarsely punctured in both species. 
Section II. Antenne with the joints less closely articulated ; first and second 
ventral segments connate or freely articulated. . 
1. Prothorax emarginate or truncate in front, the head more or less C “pe 
prominent, usually well exposed. 
a. Claws simple. — ~~ (rs \ 185 
To group 1 of this section also belong the South-American genera Canistra and 
Pecilaspis, the Antillean genus Elytrogona, and the Eastern genus Hoplionota. 
jot) 
