1913.] NATURAL SCIENCES OF PHILADELPHIA. 307 



The above-listed specimens have been compared with a pair of 

 cotypes in the collection of the Academy, received from Dr. Borelli, 

 taken at Caiza and San Lorenzo, and found to be inseparable. One 

 Jujuy female undoubtedly had an injury to the rostrum which 

 retarded the development of the characteristic clavate expansion of 

 the same, although the almost equally characteristic cruciform sec- 

 tion of that portion is decided. 



The original localities and those given above are all we know for 

 the species. 



Cephalocoema costulata Burmeister. 



1880. Cephalocf£tna costulata Burmeister, Abhandl. Natui-forsch. Gesell., 

 Halle, XV, heft I, p. 9, pi. 1, figs. 5-7. [Argentina.] 



Misiones. October 18, 1909; December 12-18, 1909; January 

 24, 1910; March 12-18, 1909; March 24, 1910; April 4-5, 1910. 

 (Nos. 3, 4 and 5.) Three adult males, ten adult females, one imma- 

 ture female. 



These specimens average slightly larger than individuals from 

 Cordoba and Carcarana, Argentina, but smaller than Sapucay, 

 Paraguay, representatives. The number of spines on the dorso-lateral 

 margin of the caudal tibise is very unreliable as a diagnostic character, 

 as an examination of the present series, which unquestionably repre- 

 sents but a single species, shows the number to range from eight to 

 twenty, while in a single specimen the disparity in the number of 

 spines on these margins of the two tibiae is as much as four (eight and 

 twelve) . 



This species is found over a considerable area, having been recorded 

 from as far north as Matto Grosso, Brazil (Bruner), and Aguiarenda, 

 Bolivian Chaco (Giglio-Tos) , south to the Rio Colorado (Bruner), 

 east to Montevideo, Uruguay (Brunner), west to Tucuman, Argen- 

 tina (Giglio-Tos). 



Cephaloccema lineata Brunner. 



1890. Cephalocoema lineata Brunner, Verhandl. K.-K. Zoolog.-botan. 

 Gesell., Wien, XL, p. 118, pi. V, fig. 11. [Mendoza, Argentina.] 



Mendoza, Prov. of Mendoza. Elev. 767 meters. February 5, 

 1909. One male. 



Chacras de Coria, Prov. of Mendoza. Elev. 936 meters. February 

 24, 1908. One female. 



Potrerillos, Prov. of Mendoza. Elev. 1,368 meters. February 

 20, 1908. Two females. 



This constitutes the second report of the occurrence of this very 

 remarkable species. As a male was previously unknown, a few notes 

 on the points of difference from the female may be of interest. 



