794 PROCEEDINGS OF THE ACADEMY OF [NoV.. 



brown color united at, and suffusin.s; the greater portion of, the sub- 

 genital plate, as is usual in species of the genus. 



Measurements. 



Length of body, 42 mm. 



Length of pronotum, 1L5 " 



Breadth of pronotum, 16.6 " 



Length of tegmen, 42 " 



Width of tegmen, 15.7 " 



The type is unique. 



I take pleasure in dedicating this species to Prof. P. Biolley, of San 

 Jose, Costa Rica, who collected the type and supplied a portion of the 

 material on which this paper is based. 



Family MANTID^. 

 ACONTISTA Saussure. 

 Acontista mexicana Saussure and Zehntner. 



Carrillo. (Hebard Collection.) One female. 



STAGMOMANTIS Saussure. 

 Stagmomantis nahua Saussure. 



Carrillo. (Hebard Collection.) One male, one female. 



The facial scutellum of the female is not narrowly emarginate dorso- 

 mesad as in a female from Chinandega, Nicaragua, while all three speci- 

 mens examined have the cephalic limbs unspotted. 

 Stagmomantis tolteca (Saussure). 



Surubres river at San Mateo, altitude 250 meters. February, 1905. 

 [No. 13.] (P. Biolley.) One male. 



Stagmomantis venusta Saussure and Zehntner. 



1S94. Stagmomantis venusta Saussure and Zelmtner, Biol. Cent.-Amer., 

 Orth., I, p. 145, PI. VII, figs. 4 and .5. [Sinanja, Panima and Telenian,' 

 Vera Paz, Guatemala.] 



Surubres river at San Mateo, altitude 250 meters. February, 1905. 

 [No. 15.] (P. Biolley.) One male. 



Stagmomantis androgyna Saussure and Zehntner. 



1894. Stagviomantis androgyna Saussure and Zelintner, Biol. Cent.-Amer., 

 Orth., I, p. 147, PL VII, fig. 1. [Belize, British Honduras.] 



Surubres river at San Mateo, altitutle 250 meters. February, 1905. 

 [No. 14.] (P. Biolley.) One male. 



This specimen has the black stigma very small, and the pronotum 

 shorter (19.5 mm.) than the original measurements (23.5 mm.). The 

 maculations of the wings are practically absent, those organs being 



