DESCRIPTIONS OP NEW SPECIES. 159 



PYROTA LEC. 



463. P. terminata. Nigra, capite nitido parce punctato, macula 

 magna rhomboidali luteo punctis paucis nigris notato, thorace latitudine 

 longiore, nitido punctis paucis notato, pone apicem vage transversim 

 impresso, ante scutellum late foveato, luteo macula discoidali utrinque 

 guttisque duabus parvis in lateribus ipsis sitis nigris, scutello nigro ; 

 elytris luteis subtiliter dense rugosis subopacis, macula ovali ad basin 

 prope suturam, macula latissima pone medium apiceque nigris ; subtus 

 tota nigra. . Long. '74. 



One female from Kansas, near the Rocky Mountains; Mr. 

 Walsh informs me that he has a similar one from Colorado Ter- 

 ritory. Allied to P. engelmanni, but differs by the color of the 

 head, by the thorax being less elongate, having more numerous 

 impressed punctures, and by the position of the lateral small spots, 

 both of which are on the inflexed portion, near the middle, the 

 inner or upper one being more anterior, and the outer or lower one 

 being on a transverse line with the discoidal spot ; in P. engel- 

 manni the outer one is anterior to the discoidal spot, and the 

 inner one is situated on the apical margin. The scutellum is black, 

 while in P. engelmanni it is in whole or in part yellow ; the elytra 

 have but one sub-basal spot on each side, near the suture ; the 

 fasciform spot extends from the second fifth to the fourth fifth of 

 the elytra (attaining as in P. engelmanni neither the side margin 

 nor the suture), and the apical black margin is narrower. 



The species of Pyrota in my collection may be distinguished 

 readily by the following synopsis : 



Elytra banded with black ; 

 Apex of elytra black ; 



Legs spotted with yellow and black. MYLABRINA. 



Legs entirely black ; 



Basal spots double, sometimes confluent. ENGELMANNI. 



Basal spot single, near the suture. TERMINATA. 



Apex of elytra yellow ; legs spotted. POSTICA. 



Elytra striped ; legs spotted ; 

 Vertex deeply channelled ; elytra with a broad stripe and 



subbasal spot. VITTIGEBA. 



Vertex not channelled ; 



Elytra with the entire limb, an abbreviated basal vitta 



and subapical spot pale. INSITLATA. 



Elytra with a discoidal and common sutural stripe black. GERMARI. 

 Elytra with a discoidal stripe and subbasal spot black. DISCOIDEA. 

 Elytra black, with the entire limb yellow. LIMBALIS. 



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