1913.] NATURAL SCIENCES OF PHILADELPHIA. 315 



a geographic race of pagana. The Jujuy male fully agrees with the 

 cotypic material, and typical individuals of the two forms can be 

 separated by the following features: 



A. — Form more robust; tegmina broader, less elongate; head 

 broader, eyes prominent, shorter, fastigium broad 0. pagana. 



AA. — Form slenderer; tegmina more elongate, narrower; head 

 narrower, eyes less prominent, longer, fastigium narrow, more 

 elongate 0. pagana minor. 



This race is prol^ably restricted in its typical form to the Bolivian 

 Chaco and the adjacent portions of Argentina (Jujuy). Material 

 from Chapada and Corumba, Matto Grosso, Brazil, is rather inter- 

 mediate between the present subspecies and true pagana, but some- 

 what closer to minor. 

 *Amblytropidia robusta Bruaer. 



1906. AmhUjlropidia robusta Brunei', Proc. U. S. Nat. Mus., XXX, p. 631. 

 [Sapucay, Paraguay.] 



Misiones. April 5 and 23, 1910; May 5, 1910. One male, three 

 females. 



These individuals are inseparable from Sapucay specimens. One 

 female has the dorsum washed with dull green, as mentioned by 

 Bruner. 



The species is only known from the type locality, Puerto Bertoni, 

 Paraguay, and the Misiones. 

 Sinipta dalmani Stai. 



1860. Gomphocems {Sinipta) Dalmani St&l, Kong. Svenska Fregatt. Eugenics 

 Resa, ZooL, I, Ins., p. 340. [Montevideo, Uruguay.] 



Alto Pencosa, Province of San Luis. Elev. 660 meters. December 

 20-22, 1908. Seven males, one female. 



These specimens have been compared with two pairs in the 

 Academy collection from Carcarana, Argentina, collected by Bruner. 

 The female of the present series is the only one of the dozen now 

 before us which does not possess supplementary pronotal carinse. 

 The coloration of this individual is essentially the same as the other 

 two of that sex, but there is no trace of the carinse. Doubtless this 

 genus is similar in this respect to Eriteitix, which has the supple- 

 mentary carinse present or absent in the same species from the same 

 locality.22 



The locaUties from which this species has been recorded are Cor- 

 doba, Carcarana, and Alto Pencosa, Argentina; Sapucay, Paraguay, 

 and Montevideo, Uruguay. 



2 Vide Rehn and Hebard, Proc. Acad. Nat. Sci. Phila., 1910, p. 625. 



