74 PROCEEDINGS OF THE ACADEMY OF [Jan., 



F. — Ovipositor with ventral margin nearly- 

 straight except at distal extremity. Teg- 



mina small emarginata Brunner. 



FF. — Ovipositor with ventral margin more {gladia- 

 tor) or less (oreoeca) arcuate. Tegmina 

 medium sized. 

 G. — Size large. Ovipositor slender. Limbs very 



elongate _ gladiator n. sp. 



GG. — Size medium. Ovipositor more robust. 



Limbs moderately elongate...orececan. sp. 



EE. — Subgenital plate with lateral portions trigonal, 



but apices blunted, non-spiniform. (Ventral 



margin of lateral lobes of pronotum distinctly 



sinuate. Eyes relatively prominent.) 



catinata n. sp. 

 DD. — Form compact and robust. Pronotum not elon- 

 gate, short. Limbs and ovipositor proportion- 

 ately shorter, the ovipositor robust. 

 E. — Ovipositor not quite half as long as the caudal 

 femora; subgenital plate with lobes rotundato- 



angulate tridactyla n. sp. 



EE. — Ovipositor equal to or slightly more than half 

 as long as the caudal femora; subgenital 



plate with lobes quite acute caudelli n. sp. 



AA. — Ovipositor slightly or not at all longer than the head and 

 pronotum together. 

 B. — Tegmina separated by nearlj^ or quite their own width. 



(Eyes elliptical.) hrevihastataM. orse. 



BB. — Tegmina separated by much less than their own width. 



C. — Form more robust. Ovipositor elongate, slender 



pollicifera n. sp. 

 CO.- — Form slenderer. Ovipositor quite robust, castanean. sp. 



Dichopetala mexicana Brunner. 



1878. D\ichopetala] mexicana Brunner, Monogr. der Phaneropt., p. 77, pi. I, 



fig. 6. [Cuernavaca, Morelos, Mexico.] 

 1897. Dichopetala mexicana Saussure and Pictet, Biol. Cent.-Amer., Orth., 



I, p. 315. 



1900. Dichopetala mexicana Rehn, Trans. Amer. Entom. Soc, XXVII, 

 p. 88. [Rio Cocula, Guerrero, Mexico.] 



1901. Dichopetala pulchra Rehn, Entom. News, XII, p. 207. [Rio Cocula, 

 Guerrero, Mexico.] 



This species needs comparison only with D. falcata (vide infra), 

 from which the male can be immediately separated by having the 

 subgenital plate exserted in lobes, the female by having the tegmina 

 not overlapping and both sexes by the proportionately more elongate 

 limbs. 



Types: (f and 9 ; Cuernavaca, Morelos, Mexico. [Brunner 

 •Collection.] 



