826 procp:edings of the academy of [Nov., 



the dorsal margin straight, ventral margin arcuate, apex acute, prox- 

 imal half subequal, margins entire; subgenital plate subtrigonal, 

 apex very shallowly emarginate. Cephalic and median limbs short, 

 rather weak. Caudal femora slightly shorter than the length of the 

 body, the proximal half strongly inflated tapering to the slender 

 subequal distal third, ventral margins with three spines at the distal 

 third; tibas somewhat shorter than the femora, dorsal margins with 

 numerous spines, ventral margins with several on the distal section. 



General color vandjd^e brown, washed and sprinkled with bister and 

 black. Head with the face solid black margined laterad with a narrow 

 ochre line, antennae annulate with black. Pronotum with a pair of 

 broken longitudinal blackish lines on the disk, the caudal margin alter- 

 nately black and ochre, and the lateral lobes suffused with bister. Teg- 

 mina with the lateral fields blackish-brown. Abdomen with the dor- 

 sum ochre yellow sprinkled with brown, venter and lateral aspects dark 

 brown. Ovipositor hazel. Cephalic and median femora bister, the 

 tibiae ranging from russet to ferruginous. Caudal femora with the 

 sections ventrad of the medio-lateral line blackish, dorsad of this line 

 mingled prout's brown and wood brown; caudal tibiae and tarsi bister. 



Measurements. 



Length of body, 20 mm. 



Length of pronotum, 8 " 



Length of tegmen, 10 " 



Length of caudal femur, 19.2 " 



Length of ovipositor, 9.3 " 



The type is the only specimen of this striking and distinct species 

 seen. 



XIPHIDION Serville. 



1831. Xiphidion Serville, Ann. Sei. Nat., XXII, p. 159. 



Included X. juscuni (Fabricius) and fasciatum (De Geer), of which 



the former, juscum, can be consitlered the type. 



Xiphidion fasciatum (DeGeer). 



1773. Locusta fasciata De Geer, Mem. d'Hist. Ins., Ill, p. 458, PI. 40, fig. 4. 

 [Pennsylvania.] 



San Jose, altitude 1,160 meters. June, 1904. (P. Biolley; Nos. 47 

 and 48.) [A. N. S. Phila.] Two females. 



Guatel. (C. F. Underwood.) [A. N. S. Phila.] One male. 



This species has been recorded from Cache, Costa Rica, and Puntade 

 Sabana, Darien, Panama. 



