190 PHYTOPHAGA. 



The genus is of wide geographical distribution, and contains more than seventy 

 species, eleven being known, up to the present time, to inhabit Central America. 



1. Plagiodera punctigera. (Tab. IX. fig. 22.) 



Plagiodera punctigera, St&l, Monogr. Chrys. Amer. p. 298 1 ; Diagn. Of vers. Vet.-Ak. Forh. 1860, 

 p. 466 2 . 

 Hab. Mexico 1 \ Cordova, Playa Vicente (SallS, Edge) ; Guatemala, Teleman, Chacoj, 

 Purula (Champion). 



The specimens received from Guatemala do not differ from the Mexican forms 

 described by Stal. The species is easily recognized by the three elytral black spots, 

 placed in a triangular position. 



2. Plagiodera semivittata. (Tab. IX. fig. 23.) 



Plagiodera semivittata, St&l, Diagn. 1860, p. 467 ; Monogr. Chrys. Amer. p. 304. 



Hab. Mexico, Toxpam, Orizaba, Cordova, Jalapa (SalU, Hoge); Guatemala, Duenas, 

 San Geronimo, Calderas, Sinanja (Champion). 



Normal specimens of this species are fulvous above, with the thorax spotted as 

 described by St&l, or without spots ; the elytra have two isolated spots at the base and 

 a curved triangular band from the middle to nearly the apex ; the suture is either 

 entirely black or this colour is interrupted in the middle. From Guatemala specimens 

 have been received in which the elytral spots are dark green and larger and the ground- 

 colour of a much darker shade, the punctuation being also more regularly striate, and 

 the underside of an obscure piceous colour. In other respects they resemble the 

 Mexican forms, of which one is figured. 



3. Plagiodera maculatella. (Tab. IX. fig. 25.) 



Plagiodera maculatella, St&l, Diagn. 1860, p. 467 ; Monogr. Chrys. Amer, p. 305. 

 Hab. Guatemala (Salle). 



Mr. Champion has not met with this species in Guatemala, and a single specimen 

 only is contained in M. Salle's collection. 



4. Plagiodera aeneiventris. 



Plagiodera aeneiventris, Stal, Diagn. 1860, p. 467 ; Monogr. Chrys. Amer. p. 305 \ 



Hab. British Honduras, river Sarstoon (Blancaneaux) ; Guatemala, Capetillo, 

 Duenas, Zapote (Champion) ; Nicaragua, Chontales (Janson) ; Costa Eica K 



From P. maculatella the present species differs in the marking of the elytra, which 

 have always a sinuate transverse stripe at the middle instead of isolated spots ; but 

 their punctuation may serve as a better guide in the separation of the species in ques- 



