194 HETEROMERA. 
Hab. Mzxico, Cordova (Sallé), Jalapa, Esperanza (Hoge); British Honpuras, Belize | 
(Blancaneaux) ; Guaremata, Balheu, Cubilguitz (Champion).—CoLomB1s, Bogota (coll. 
F. Bates); Guiana, Cayenne!; Amazons, Santarem. : 
A common species in Mexico. Smaller and narrower than P. bimaculatum, the head 
closely and rather coarsely punctured ; the thorax distinctly but finely punctured ; the 
strie of the elytra more deeply impressed, the punctures much coarser; in size varying 
from 4-5 millimetres. 
22. Platydema submaculatum. 
Platydema:-submaculatum, Chevr. Compt. Rendus de la Soc. Ent. Belg. xxi. p. xcix’. 
Hab. Mexico, Esperanza, Jalapa (Hége) ; Brrrish Honpuras (Blancaneaux).— 
? Braz}. 
In Mr. F. Bates’s collection two distinct species are each labelled, in Chevrolat’s 
handwriting, P. submaculatum, and marked “type”; one of these, from Santarem, 
Brazil, does not differ from P. fasciatum, Fabr.; the other, without locality, agrees 
more nearly with the description of P. submaculatum, and with our Central-American 
species. In the specimen without locality the elytra are distorted and apparently 
immature, the red discoidal spots of the elytra appearing on one side only. Chevrolat 
himself suggests that P. submaculatum may possibly be only a variety of P. fasciatum ; — 
but in the latter specimen, as in our species, the head is shining and very much more 
coarsely punctured, the thorax more evidently punctured, and the transverse red spot on 
each elytron placed (as described by Chevrolat), if anything, a little before the middle. 
The elytral spots vary a good deal in size in the twenty examples before me, but do 
not, as in P. transversum, show a tendency to form broad transverse or oblique bands. 
The size varies from 44-54 millimetres. This species bears much the same relation to 
P. fasciatum as does P. diophthalmum to P. bimaculatum. 
23. Platydema transversum. (‘Iab. VIII. fig. 17.) 
Platydema transversum, Lap. & Brullé, Ann. Sciences Nat. xxiii. p. 3817. 
Hab. Panama, Volcan de Chiriqui (Champion) —Cotoms1a}, Cartagena (coll. F. Bates); 
Amazons, Para, Ega, Santarem. . 
Three examples from Chiriqui are apparently referable to this species; these agree 
very nearly in the maculation of the elytra with some of the specimens (from Balheu) 
referred to P. fasciatum. The red elytral bands, however, in the Chiriqui examples — 
are united at the suture and much more sharply defined, extending angularly forwards 
near the middle and posteriorly along the suture ; the strie are more deeply impressed, 
the punctures coarser and more distant one from another. 
