74 STUDIES IN AMERICAN TETTIGONIIDAE (oRTHOPTERA) 



angle rotundato-obtuse-angulate, caudal margin arcuate but slightly flattened 

 ventrad, humeral sinus distinct, broad, convex callosity of lateral lobes broad, 

 elliptical. Tegmina nearly one and one-half times as long as the caudal femora, 

 elongate lanceolate, moderately acute; structure of the stridulating field as in 

 volanlum. Wings surpassing the tegmina by about half the ])ronotal length. 

 Cerci elongate, robust, distal portion tapering, internal tooth place distinctly 

 proximad of the middle, the tooth depressed, directed ventro-proximad and 

 moderately acute, the distal portion of the tooth alone tapering, the proximal 

 portion subequal in width, dorsal surface of cereal shaft inflated dorso-mesad, 

 this developed proximad into a carinate ridge which curves around the base of 

 the tooth, distal portion of shaft depressed, tapering and with the apex gently 

 incurved; subgenital plate fuU, lateral margins arcuate, distal margin very 

 shallowly obtuse-angulate emarginate, styles articulate, slender. Cephalic 

 and median femora very appreciable tapering distad; caudal femora consid- 

 erably inflated proximad, very slender distad, distal portion of ventro-external 

 margins armed with two to three spines. 



Allotype. — 9 ; Same data as the type. 



Description of Allotype. — Differing from the description of the male in the 

 following features. Ovipositor very slightly longer than half the caudal 

 femoral length, rather heavy, dorsal margin nearly straight, ventral margin 

 straight proximad, gently arcuate distad, apex very acute, width subequal in 

 proximal five-eighths. Subgenital plate simple, narrowly emarginate disto- 

 mesad. 



Paratypic Series. — ^We have in addition to the type and allo- 

 type a paratypic series of four males from the tj'pe locality. 



Measurements {in inillimeters) 

 & 



Length of body 



Length of pronotum . . 



Length of tegmen 



Length of wing distad of 



tegmen 



Length of caudal femur. 



Length of body 



Length of pronotum . . 

 Length of tegmen .... 

 Length of wing distad of 



tegmen 



Length of caudal femur 

 Length of ovipositor . . 



-2 Greatly shrivelled. 



