42 



ORTHOPTEROUS GROUP INSARAE 



Allotype here Selected. — cf ; Porto Bello, Panama. March 10, 

 1911. (A. Busck.) [U.S.N.M.] 



Description of Allotype. — Size medium for the group, structure 

 delicate. Fastigium of vertex as given in generic description, 

 strongly sulcate cephalad of meso-caudal projection and with 

 lateral margins somewhat thickened cephalad; facial fastigium 

 presenting a flat cephalic surface; antennae beyond proximal joints 

 extremely slender, peculiarly marked and with joints proportion- 

 ately longer than in the species of Insaro. Dorsum of pronotum 

 deplanate with a medio-longitudinal and two transverse sulci very 

 weakly indicated, lateral margins subsinuate; lateral lobes of pro- 

 notum as given in generic description, the cephalic margin weakly 

 concave in dorsal half and weakly convex in ventral half, ventro- 

 cephalic angle broadly rounded at an angle of a little more than 

 ninety degrees, ventral margin rounding evenly into caudal margin 

 which is straight, humeral sinus very broad and deep, roundly 

 angulate at an angle of a little more than ninety degrees. Tegmina 

 and wings as given in the generic description, very delicate in struc- 

 ture. Disto-dorsal segment of abdomen weakly bilobate; supra- 

 anal plate elongate, lanceolate; cerci exceedingly long, crassate 

 and moderately tuberculate proximad then slender and smooth, 

 narrowing very gradually to sharp apex, distal third curving gently 

 inward thus forming nearly a right-angle; subgenital plate as 

 given in the generic description. Cephalic and median femora as 

 given in generic description, very slender with extreme disto-dorsal 

 portion weakly constricted from base of genicular lobes. Caudal 

 tibiae with all but the proximal portion of the ventral margins 

 armed, genicular lobes elongate although but little produced beyond 

 apex of tibiae and terminating in a single short spine. 



^ The measurements here given for the type are quoted from Brunner's 

 original description. 



