1904.] XATURAT. SCIE.N'CES OF PHILADELPHIA. 101 



slightly shorter than the anterior tibiso in length, margins very slightly 

 crenulate; tibiae slightly over two-thirds the length of the mesonotiim, 

 margins moderately and irregularly crenulate; metatarsi less than 

 half the length of the remaining tarsal joints. Posterior femora about 

 equal to the mesonotum in length, superior margins dentato-crenulate, 

 the anterior one with the processes very large, inferior margins with 

 distinct rounded foliaceous lobes ; tibiae slightly shorter than the femora, 

 the superior margins wdtli distinct hemispherical lobes; metatarsi about 

 half as long as the remaining tarsal joints. 



General color olive, irregularly blotched and sprinkled with patches of 

 wood-brown and bearing a very pale suffusion of pea-green on the wings 

 and tegmina. Wings with the base of the costal and the whole dis- 

 coidal area suffused with a wash of vinaceous pink; posterior area pale 

 smoky-hyaline, the veins pale brownish, the whole surface bearing an 

 indefinable bloom of pinkish vinaceous, best seen by viewing the wing 

 obliquely. 



Measurements. 



Total length, 63 mm. 



Length of pronotum, 4 " 



Length of mesonotum, 8 " 



Length of metathorax, 8.5 " 



Length of tegmina, 7 " 



Length of wings, 26 " 



Length of abdomen, 40 " 



Length of anterior femora, 9.5 " 



Length of anterior tibiae, 8.5 " 



Length of median femora, 7 " 



Length of posterior femora, 8 " 



Genus XEROSOMA Serville. 

 1831. Xerosoma Serville, Ann. Sci. Nat., XXII, p. 01. 



Type. — Xerosoma canaliculatum Serville. 

 Xerosoma glyptomerion ^- n. sp. 



Types. — d' ; San Carlos, Costa Rica. (Schiid and Burgdorf.) [Cat. 

 No. 7,351, U. S. N. M.] 9 ; Carrillo, Costa Rica. [A. N. S. Phila., 

 presented by Mr. Morgan Hebard.] 



Apparently closer allied to senticosa StaP^ than any other member of 

 the genus, Ijut still very distinct. It can readily be separated by the 

 absence of distinct spines on the pronotum, the greater number of 

 cephalic spines, the shorter mesonotum of the female and a number of 

 other characters. 



52 ylvnro^, sculptured, and MP'm>, thigh. 

 *' Recensio Orthopterorum, III, p. 99. 



