228 PHYTOPHAGA. 
Museum, which only differs from typical C. plicata in having the black dorsal patch of 
the elytra narrower and not extending so far posteriorly, and sometimes with a narrow 
flavous fascia behind. The scutellum is black. The elytral margins are perhaps a 
little broader than in the male of C. plicata, the elytra themselves obtuse at the apex 
in this sex. The type from the Stockholm Museum is figured. 
13. Ctenochira vivida. (Tab. XIII. figg. 8; 9, 10, vars.) 
Coptocycla vivida, Boh. Monogr. Cassid. iii. p. 517+, and iv. p. 4857; Cat. Col. Ins. Brit. Mus. ix. 
 p. 208%. 
Hab. Mzxtco!~, Playa Vicente, Tuxtla, Cordova (Sallé), Teapa in Tabasco (Hf. H. 
Smith); Honpuras (Mus. Brit.); Panama, Bugaba (Champion). 
Var. a. The black annulus on the elytra narrower and not reaching the apex, obliquely truncate or rounded 
behind, the space enclosed varying in colour from flayous to sanguineous, and with irregular black spots, 
which are sometimes obliterated. (Fig. 9.) 
Ctenochira nigrocincta, Wag. Mittheil. Miinch. ent. Ver. i. p. 55 *. 
Hab. Costa Rica (Sallé); Panama (Mus. Brit.), Bugaba, Volcan de Chiriqui (Cham- 
pion).—CoLomMBIA, Canoas 4. 
Var. 3. The black annulus on the elytra still narrower, extending almost to the apex, nearly obliterated in 
pale specimens, the space enclosed usually flavo-testaceous, broadly bordered with sanguineous, sometimes 
entirely sanguineous, and with the punctures placed upon dilute fuscous dots. (Fig. 10.) 
Coptocycla tabida, Boh. Monogr. Cassid. iii. p. 511°, and iv. p. 485°; Cat. Col. Ins. Brit. Mus. 
ix. p. 2027. 
Hab. Mrxico’~', Playa Vicente, Cordova (Sallé), Cerro de Plumas (ége), Fortin in 
Vera Cruz, Teapa in Tabasco (H. H. Smith); Panama, Bugaba, Volcan de Chitiqui 
(Champion). 
Three well-marked forms occur of this variable species :—(1) (C. vivida), with an 
exceedingly broad black annulus on the elytra; (2) (var. «, C. nigrocincta), with the 
annulus a little shorter and not so wide, the space enclosed usually irregularly spotted 
with black; (3) (var. 6, C. tabida), with the annulus still narrower, sometimes not 
reaching the suture behind, the space enclosed bordered within with sanguineous or 
dilute sanguineous, or entirely of that colour. These forms are connected by inter- 
mediate gradations, and all three have been collected together at the same localities 
in Mexico and in the State of Panama; so there can be little doubt that they belong 
to one variable species. Most of the Panama specimens of the typical form and of the 
var. tabida have the space enclosed by the annulus sanguineous. C. nigrocincta, Wag., 
the type of which has been lent me by M. René Oberthiir, is based upon a specimen of 
the var. « with the flavous dorsal patch on the elytra irregularly marked with black, : 
and the black patch on the prothorax reduced in size; some of the Panama examples, 
and the one from Costa Rica, scarcely differ from it. C. vivida is a very variable 
and abundant Central-American insect, and C. punicea is probably a pale variety of it. 
