1913.] NATURAL SCIENCES OF PHILADELPHIA. 287 



The two small male.s from Sapucay and the Cordillera de Mendoza 

 male differ from all the others of that sex in having the extreme 

 proximal portion of the marginal field of the tegmina equally hyaline 

 with the remainder of that field, while the other specimens have the 

 same opaque rufous, on one side touching the humeral trunk and on 

 the other obliquely delimited. 



The Cordillera de Mendoza specimen differs from all the other 

 specimens seen in having the margins of the collar of the pronotum 

 more decidedly converging cephalad, the cephalic extremity being 

 much narrower than usual in consequence. This appears, however, 

 to be purely individual. 



The species, from the basis of previous records and present material, 

 is known to range from southern Brazil (Saussure) and central 

 Paraguay (Sapucay) south to Uruguay (Saussure) and west to the 

 Cordillera de Mendoza, Argentina. 

 Coptopteryx claraziana Saussure.7 



1869. C[optopteryx] claraziana Saussui'e, Mittheil. Schweiz. Entom. Gesell., 

 Ill, p. 66. ["Ager argentinus."] 



Chacras de Coria, Prov. de Mendoza. Elev. 936 meters. Decem- 

 ber 13, 1907. One male. 



This specimen has the tegmina fuliginoso-hyaline, while the wings 

 are more decidedly fuliginous. The female from Carcaraiia, Argen- 

 tina, previously recorded by us as crenaticoUis,^ belongs to this species. 



The Chacras de Coria specimen measures: length of body, 72 mm.; 



6 Imperfectly developed. 



^ This name was almost immediately cancelled by Saussure, who then considered 

 the species to represent Blanchard's crenaticollis. This is clearly an error and 

 the name claraziana is available for the species, which has been recorded by most 

 authors as crenaticollis, following Saussure. 



8 Proc. Acad. Nat. Sci. Phila., 1907, p. 155. 



