308 PROCEEDINGS OF THE ACADEMY OF [May, 



Size rather large; form extreme elongate. Proportions of the head 

 essentially as in the female; eyes more prominent. Pronotum much 

 slenderer than in the female, the portion cephalad of the insertion 

 of the cephalic limbs narrower than the portion caudad of the same, 

 expansion at the cephalic margin very decided as well as that at the 

 insertion of the limbs. Dorsum of the pronotum, mesonotum and 

 metanotum more or less distinctly tricarinate mesad, the carinse being 

 closely placed, traces of the same present in the female. Supra-anal 

 plate short, lanceolate, apex acute; cerci extremely short, simple; 

 subgenital plate elongate-lanceolate, subequal in length to that 

 portion of the pronotum caudad of the insertion of the limbs, strongly 

 compressed, acute. Limbs very slender, the median and cephalic 

 almost filiform, the caudal femora almost imperceptibly inflated. 



Measurements. 



Length of body 103 . mm. 



Dorsal length of head 25 . 



Length of pronotum 23 . 



Width of pronotum at the insertion of limbs 2 . 



Length of mesonotum and metanotum 6.2 



Length of cephalic femur 22 . 



Length of median femur 21.5 



Length of caudal femur -. 35 . 



Length of subgenital plate 1 1 . 



Astroma compactum Brunner. 



1891. Astroma compactum Brunner, Verhandl. K.-K. Zoolog.-botan. 

 Gesell., Wien, XL, p. 120, pi. V, figs. I2a-b. [Mendoza, Argentina; 

 Santiago, Chile.] 



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

 2, 1908; December 22, 1908. One male, one immature female. 



La Paz, Prov. of Mendoza. Elev. 504 meters. January 29, 1908. 

 One female. 



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

 18, 1907; December 6, 1907; January 15, 1908; February 4-11, 

 1908; March 6, 1908. One male, six females, two immature females. 



Mendoza, Prov. of Mendoza. Elev. 767 meters. November 

 10-15, 1907; December 13-18, 1907; January 5, 1908; March 27-29, 

 1908; April 12 and 24, 1908; May 7 and 13, 1908; June 5-18, 

 1908. Ten males, nineteen females, six immature individuals of 

 both sexes. 



Blanco Encalada, Prov. of Mendoza. Elev. 1,068 meters. Feb- 

 ruary 16, 1908. One female. 



