“182 PHYTOPHAGA. 
There is a Mexican specimen of this species in the British Museum from the 
Chevrolat collection, no doubt the type, and another in the Baly collection. We 
also have two of it from Guatemala—one with the elytra entirely black, the other with 
the elytral margins narrowly bordered with yellow at the base and apex. Boheman | 
describes the elytra as black, with the shoulders narrowly margined with yellow. The 
South-American C. furva, Boh., is a closely allied form. 
8. Charidotis curtula. (Tab. IX. fig. 26.) 
Charidotis curtula, Boh. Monogr. Cassid. iv. p. 376’. 
Hab. Muxtco (Sallé1). 
A very distinct species, easily known by its opaque, bluish-black upper surface, the 
prothorax with the anterior margin flavous and hyaline. | 
9. Charidotis rotundata. 
Charidotis rotundata, Boh. Monogr. Cassid. iii. p. 53*, and iv. p. 382”; Cat. Col. Ins. Brit. Mus. 
ix. p. 153°. . 
Hab. t Mexico? 3 (Deppe, in mus. Berol. +).—Braziu}. 
Boheman in his subsequent publications? * omits the locality “ Brazil” altogether ; 
it is, however, more likely to be correct than ‘ Mexico,” as the allied forms are all 
Brazilian. 
COPTOCYCLA. 
Coptocycla, Sect. I., Boheman, Monogr. Cassid. iii. p. 90 (1855), and iv. p. 390; Chapuis, Gen. Col. 
xi. p. 890. 
Psalidonota, Boheman, Monogr. Cassid. iii. p. 81. 
Chirida, Chapuis, Gen. Col. xi. p. 405 (1875). 
No less than 376 species were included under Coptocycla, Sect. 1., by Boheman; the 
remainder (93), belonging to his Section II., have the four hinder claws pectinate, and 
these have been separated by Chapuis under the generic name Ctenochira. Of the 376 
species of Sect. I. it is probable that a very large number of the American species belong 
to Chirida, though two only (C. cruciata, Linn., and C. elatior, Boh., both from Tropical 
South America) were referred to it by Chapuis. Those species with the claws angu- 
larly dilated at the base belong to Chirida, and those with the claws simple to 
Coptocycla. The name Chirida will probably have to be adopted eventually, but it is 
not advisable to use it at present, as some of the species placed in Cassida by Boheman 
also have the claws angularly dilated *. Next to the form of the claws, the relative 
length of the third joint of the antenne seems to afford a valuable character for 
grouping the large number of species of this genus, though it was not used by 
Boheman. 
* On p. 177 anted, the sect. “6” is misplaced; it should include Cassida insculpta. 
