110 PROCEEDINGS OF THE ACADEMY OF [March, 



lateral sparselj- serrato-dentate with a weaker serration between 

 the higher ones, pagina regularly patterned, ventral margin of the 

 genicular lobes sinuate; caudal tibiae very slightly shorter than the 

 femora, distinctly sinuate, armed on the external margin with 

 six spines, on the internal margin with six to seven; caudal tarsi 

 with the proximal joint distinctly shorter than the third, second 

 hardly half the length of the proximal one. 



General color olive, blackish-brown on the ventral surface, the 

 face, cheeks and dorsal portion of the mouth parts Isabella color; 

 €yes cinnamon cephalad, raw umber caudad. Caudal femora pale 

 tawny-olive, the dorsal surface entirely washed with the same, 

 genicular arches blackish-brown, ventral sulcus dark bottle-green; 

 caudal tibiae dull olive-green, the spines french green with their 

 distal halves black. 



Measurements. 



Length of body 20 mm. 



Length of pronotum 4 " 



Length of caudal femur 13 " 



The type is unique. 



SCHISTOCERCA Stai. 

 Schistocerca aegyptia (Thunb.). 



181.5. (ll[ryllus] cegyplius Thunberg, Mem. I'Acad. Imp. Sci. St. Pctersb., 

 V, p. 247. [St. Bartholomew, West Indies.] 



St. Thomas, Danish West Indies. December, 1882. A. Koebele. 

 [U. S. N. M.] One d". 



When compared with a male of cegij-ptia from Culebra Island, 

 the St. Thomas specimen is seen to differ structurally only in the 

 slightly shorter caudal femora. The coloration of the St. Thomas 

 individual has in a gi'eat measure been effaced by the preservative 

 in which the specimen was immersed, but the pattern, as it remains, 

 is essentially the same as in the Culebra representative. 

 ScMstocerca vaga brevis n. subsp. 



Types: cf and 9 ; Clarion Island, Pacific Ocean, S. W. of Cape 

 San Lucas, Lower California. (Dr. G. Baur.) [U. S. N. M.] 



This is an extremely interesting short-winged form of the rather 

 widely spread S. vaga, immediately distinguishable by the short 

 tegmina and wings which very slightly surpass the tips of the caudal 

 femora. The typical series of five, one male and four females, has 

 been immersed in a liquid preservative and in consequence the 

 coloration and to a certain extent minor structural characters 

 can hardly be considered to furnish diagnostic characters. 



