582 MR. S. MAULIK OX 



Omoplata nortnalis Boheman, Mon. Cassid. ii. 1854, p. 104, 



Cassida suturalis Olivier, Enc. meth. v. 1790, p. 385 ; Ent. vi. 

 1808, p. 942 ; 97, t. 4. f. 95 (nee F.). 



2 examples. 



These are without locality-labels, but it is a well-known 

 Brazilian species. 



Genus Omaspides Boh. 



Omaspides olathrata L. (var. a). 



1 example. 



Locality. — Amazons {Goodman, 1879). 



This is a common insect. It has also been reported from 

 Dutch Guiana and Cayenne. 



Genus Chelymorpha Boh. 



Chelymorpha marginata L. 



2 examples. 



Locality. — Amazons {Goodman, 1879). 

 Range. Cayenne, Brazil. 



Chelymorpha variolosa Oliv. 



Cassida variolosa Olivier, Enc. meth. v. 1790, p. 385 ; Ent. vi. 

 1808, p. 958 ; 97, t. 2. f. 21 ; t. 3. f. 46. ' 



1 example. 



Locality. — Amazons {Goodman., 1879). 

 Range. Para., Cayenne. 



Genus Physonota Boh. 

 Physonota alutacea Boh., var. cyrtodes. 



Physonota alutacea Boheman, Mon. Cassid. ii. 1854, p. 192 ; 

 Champion, Biol. Centr.-Amer., Col. vi. (2) 1885-94 (1894), 

 p. 166. 



2 examples. 



Locality. — Mexico {Gadoto). 



Range. Central America, Columbia, Venezuela, j\Iexico. 



Genus Batonota Hope. 



Hope erected the genus Batonota (spine-backed) in 1839. 

 He did not draw up any synoptical table of the allied genera. 

 The remarkable dorsal prolongation of the elytra into a double 

 spine led hi-m to found this genus. He took hidens F. as the type, 

 but at the same time he included Cassida truncata of Fabricius, 

 which has no spine, in Batonota. Later anthors did not question 

 this inclusion of truncata F. : thus at present the genus is com- 

 posed of 42 species of heterogeneous insects which obviously 

 fall into at least three genera. Out of the 42 species 34 are 



