223 



base. Sides of" the body and posterior femora with two yellow fasciae. Pos- 

 terior femora beneath, tibiie, and tarsi red ; tibial spines black at the apex. 

 Pronotum of the male less distinctly carinate. Posterior tibiae of both sexes 

 sometimes blue. 



Length of the body, 1 inch. 



Mexico temperata (Saussure). 



Division 2. — Body slender, elongate. Antennae very long. Lateral 

 carinae of the pronotum distinct only on the anterior portion. Foveola of the 

 vertex slightly deflexed. Abdomen of the male at the end very much in- 

 flated ; apex recurved ; sub-anal lamina very broad and very convex ; cerci 

 lamelliform. . Elytra passing the abdomen."^ 



1. Body compressed. Face deflexed. The posterior sulcus of the prono- 

 tum situated behind the middle. 



P. suinichrai^ti, Sauss., Rev. et Mag. Zool., XIII (1861), 160. 



Of medium size, obscure olive-color. Frontal costa bi-carinate ; foveola 

 of the vertex narrow ; margins raised. Pronotum elongate, compressed ; 

 margins acute, carinate throughout, punctate ; sides fuscous above, with a 

 brassy luster ; carinae interrupted by three profound, transverse furrows, the 

 posterior one situated behind the middle. The anterior and middle femora 

 much swollen. Antennae very long, yellow, obscure at the apex. Elytra gray. 

 Wings greenish at the base. Posterior femora with a horizontal, yellow fascia. 

 Tibiae below the middle red; above the middle black, with a yellow ring; 

 spines black. Tarsi obscure ; pulvilli black. 



Length of the body, 1.08 inches; antennae, 0.67 inch. 



Mexico (Saussure). 



PtATYPHYMA, Fisch. 



1. Pronotum xvith the hind border truncate ; wings abbreviated. 



2. Pronotum loith the hind border ungulate ; elytra full size, equal to or 

 longer than the abdomen. (Saussure.) 



P. aztecuiu, Sauss., Rev. et Mag. Zool., XIII, 161. 



About equal in size to P. mexicana, and very similar to it, yet different. 



* This divisiou of Saussure appears to me to belong more properly to Caloptenus 

 than to Pczoietth: As he expands Fischer's generic distinctions, it is impossible to say 

 what are bis boundaries for this genus. 



