CTENOCHIRA. 297 
black patch. We figure a typical C. rubrocincta from Chiriqui and a specimen of 
the var. carnifex from Fortin. 
Va 10. Ctenochira melanota. (Tab. XIII. fig. 5, ¢.) 
Coptocycla melanota, Boh. Monogr. Cassid. iii. p. 451', and iv. p. 4727; Cat. Col. Ins. Brit. Mus. 
ix. p. 196°. 
Hab. Mexico, Teapa 1-8 (Sallé, Hoge, H. H. Smith). 
This insect is probably nothing more than a local variety of C. plicata,—though it 
is widely separated from that species in Boheman’s Monograph,—from which it differs 
in having the inner part of the elytral margins from the base to the middle, as well as 
the entire disc, black. The scutellum is usually black, sometimes partly yellow. The 
black on the elytral margins is broadest at the middle, showing no tendency to extend 
outwards at the base (the converse being the case in C. stali), the rest of the margin 
being clear flavo-hyaline. Sent in plenty from Teapa, in company with C. stali and 
C. plicata. Boheman!3 also quotes New Granada (Colombia) as a locality; but his 
Colombian specimens probably belong to C. rubrocincta, as here understood. 
va 
| / 11. Ctenochira plicata. (Tab. XIII. fig. 6, 2.) 
“ Coptocycla plicata, Boh. Monogr. Cassid. iii. p. 4931, and iv. p. 4827; Cat. Col. Ins. Brit. Mus. 
ix. p. 200°. 
Ctenochira flayoscutellata, Wag. Mittheil. Munch. ent. Ver. i. p. 65 *. 
Hab. Mexico 1~ (Sallé, ex coll. Sturm), Tuxtla, Cordova (Sailé), Fortin in Vera Cruz, 
Teapa in Tabasco (H. H. Smith); Panama, Bugaba, Volcan de Chiriqui (Champion). 
This is one of several closely allied forms named by Boheman as distinct species, and 
which merely differ inter se in slight details of coloration ; but as these forms are fairly 
constant I have retained them as distinct. The elytra in C. plicata have a large, black, 
parallel-sided patch occupying nearly the whole of the disc, the black not extending on 
to the margins about the middle as in C. melanota, nor emarginate laterally and with 
the black extending on to the margins before and behind the emargination as in 
| C. stali. The scutellum is flavous in the numerous Mexican specimens received, black 
in the two from Chiriqui. The prothorax has a very large, triangular, black patch 
occupying nearly the whole of the disc. Pallid examples have the dark parts casta- 
neous. Boheman also gives!~® North America as a locality, but the insect is not 
known to me from north of the Mexican State of Vera Cruz. | 
12. Ctenochira sagulata. (Tab. XIII. fig. 7, 3.) 
Coptocycla sagulata, Boh. Monogr. Cassid. iv. p. 481°. 
Hab. Nicaraaua, Chontales (Belt); Costa Rica!, Caché (Rogers). 
I have seen four (¢ ) specimens of this insect, including the type from the Stockholm 
