CASSIDA. 177 
the margins rather narrowly expanded, becoming exceedingly narrow at the apex, smooth, the outer 
edge slightly reflexed; the humeri prominent but obtuse. Beneath smooth, shining, the metapleure 
rugosely punctured. Claws simple. 
Length 52-6, breadth 4 millim. 
Hab. Muxico, Ventanas in Durango, Mexico city (Hége). 
Two examples (probably both females). Closely allied to the North-American 
C. nigripes, Oliv., but smaller and narrower; the elytra not much wider than the 
prothorax, with the punctures coarser, the dilute blackish marks elongate (not rounded), 
aud the margins much narrower at the apex. 
cece At 
en call ae Tn ao 
, Cassida insculpta. 
Coptocycla insculpta, Boh. Monogr. Cassid. iii. p. 340', and iv. p. 451 *; Cat. Col. Ins. Brit. Mus, 
ix. p. 184°. 
Hab. Mexico (Sallé), Yucatan 2? (Chevrolat +), Temax in North Yucatan (Gaumer). 
We have received two examples, one of which agrees perfectly with the type (now in 
the British Museum). C. insculpta is a close ally of the European C. odsoleta; the 
antenne are formed as in typical Casside. 
oN _7 b. Claws angularly dilated at the the base,/ 
3. ,. Cassida pallidula. (Tab. IX.-fig--16)~ 
Cassida pallidula, Boh. Monogr. Cassid. i. p. 457", and iv. p. 3427; Cat. Col. Ins. Brit. Mus. ix. 
p. 141°. 
Cassida texana, Crotch, Proc. Acad. Phil. 1873, p. 78’. 
Hab. Norrn America, Texas*.—Mexico, Northern Sonora (Morrison), Juarez 
(Cockerell), Oaxaca? ? (Deppe, in Mus. Berol.'). 
This insect is a very close ally of C. insculpta, Boh., from which it differs in the 
less expanded margins of the elytra and more prominent humeri. The antenne are 
usually wholly testaceous, sometimes with one or more of the apical joints infuscate. 
Mr. Cockerell’s specimens were collected at Juarez, on the Rio Grande, opposite 
El Paso. 
** EKlytra tuberculate ; claws angularly dilated at the base. 
4, Cassida rugosa. (Tab. IX. tigg. 17; 17a, profile.) 
‘  Cassida rugosa, Boh. Monogr. Cassid. ii. p. 472%, and iv. p. 344°; Cat. Col. Ins. Brit. Mus. ix. 
\/ p. 142°. 
Hab. Mexico, Chilpancingo in Guerrero (H. H. Smith), Matamoros Izucar, Capu- 
lalpam, Yucatan 1~* (Sadlé), Temax in North Yucatan (Gawmer); GuateMaLa, San 
Gerénimo (Champion) ; Honpuras ? (Dyson *); Nicaragua, Chontales (Janson). 
Not uncommon in Mexico and Guatemala. The single specimen from Chontales has 
