1913.] NATURAL SCIENCES OF PHILADELPHIA. 353 



face, the dorsal, ventral and internal faces gamboge yellow, the distal 

 extremity almost wholly blackish with a very weak whitish edging 

 to the genicular lobes; caudal tibiae glaucous blue, the spines cream 

 at the base and tipped with black. 



Measurements. 



Length of body 18 . mm. 



Length of pronotum 4.2 ^^ 



Length of tegmen ^-^ ^^ 



Length of caudal femur 11-2 



The type of this interesting species is unique. 



Osmilia violacea (Thunberg). 



1824. Gr[ijllus] inolaceus Thunberg, Mem. I'Acad. Imp. Sci. St. Petersb., 

 IX, p. 413. [Brazil.] 



Misiones. March 18-29, 1909-1910; April 5 and 12, 1909; 

 September 1-11, 1910; October 1, 1910; December 12, 1908. 

 (Nos. 16 and 31.) Eight males, seven females. 



Information with this material is to the effect that the species is 

 "common in forest." 



The range of this form has not been clearly defined, owing to 

 considerable confusion with other species of the genus, but in Argen- 

 tina it has also been reported from San Lorenzo, Jujuy (Giglio-Tos), 

 Chaco (Bruner) and Tucuman (Bruner). 



Family TETTIGONIDJE. 

 SubfamUy PHANEROPTERIN.E. 



*Tetana grisea Bmnner. 



1878. T[etana] grisea Brunner, Monogr. der Phaneropt., p. 120, pi. II, 

 fig. 20A-B. [Chile.] 



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

 '20-22, 1908. Two males. 



San Juan, Prov. of San Juan. Elev. 673 meters. January 20, 

 1909. One male. 



These specimens are referred to this species with some little doubt, 

 :as the fastigium is more or less sulcate and the generic description of 

 Tetana says "non sulcato." The tegmina also appear slightly 

 longer proportionately than in the figure, but the length measure- 

 ments are in accord with those given by Brunner. It is also possible 

 that the individuals from Alto Pencosa are distinct from that from 

 San Juan, but the differences noted are probably individual. 



