CTENOPHLEBIA. 347 



maxime arcuato dehinc recto vel leviter sinuato; margo suturali subrecto. Vena principalis recta, apice 

 valde incurva ; ramos discoidales tres obliquos emittens, tertia ad apicem elytri attingens ; ramosque 

 costales 7-8, alterosque minutos apicales gerens. Alae apice acutae. Femora antica et intermedia margine 

 antico, femora postica margine externo, nonnunquam spinulis nonnullis armata. 



$ . Ovipositor pronoto duplo longior, basi subito incurvus dehinc vix arcuatus, apice bebetato, margine 

 infero apice subtilissime vel vix crenulato, margine supero plus quam dimidia parte apicali subcrenulato. 

 Lamina in fra-geni talis trigonalis, incisa. 



c? . Lamina supra-analis elongata, sulcata, apice trassa, rotundata, subsinuata. Lamina infra-genitalis lata, 

 plana, triangularis, apice leviter producta, bicarinata, obtusangulatim incisa, marginibus lateralibus 

 8inuatis. Cerci longissimi, arcuati, teretes, apioe. subito tumido, tumefactione cylindrica, breviter crasse 

 infundibuliformi, suboblique truncata, facie apicali orbiculari, margine externo semiorbiculari, acuto, 

 denticulis fuscis crenulato. 



2 • Long. corp. 18 ; pronot. 5 ; elytr. 31"5, lat. 15 ; femor. post. 17; ovipos. 9*5 millim. 



c? . Long. corp. 17 ; pronot. 55 ; elytr. 31, lat. 14 ; femor. post. 15 millim. 



Figures : — Fig. 17, tbe female insect. — Fig. 18, tbe end of tbe male abdomen from above, showing the 

 cerci. — Fig. 19, ditto, in profile. 



Hab. Mexico, Atoyac in Vera Cruz, Teapa in Tabasco (II. H. Smith); Nicaragua, 

 Chontales (Janson); Panama, Bugaba, Volcan de Chiriqui (Champion). 



This species is very like C peruviana, but it is larger and has more dilated elytra; 

 and the apex of the vertex is in the shape of an obtuse triangle produced into a 

 compressed lamella before the ocelli, while in C. peruviana it is but little compressed. 

 In the last-mentioned insect the lateral lobes of the pronotum are shorter and wider 

 than in C. azteca, as broad as high, with the inferior margin anteriorly obliquely 

 truncated ; and the ovipositor is longer, it being two and half times the length of the 

 pronotum. The cerci of the male are very characteristic in form in the present species, 

 the lamina infra-genitalis being wide, in the shape of a mitre, terminated by two short 

 triangular lobes ; and the femora are not spinose. 



2. Ctenophlebia zetterstedti, st&i. 



Phylloptera zetterstedti, Stal, Orthopt. Freg. Eug. Resa, p. 322 (1860). 



Ctenophlebia zetterstedti, Stal, Recens. Orthopt. 2, p. 37; Brunn. v. W. Monogr. der Phaneropt. 

 p. 304, t. 6. fig. 88. 



" Flavo-viridis, pedibus flavis. Fastigium verticis laminatim elevatum. Pronotum disco piano, margine 

 postico triangulari. Elytra latissima, rbomboidea, margine antico pone medium semicirculariter rotuudato, 

 margine postico pone medium recto. Vena radialis (principalis) apice valde curvata, ramos 7 furcatos in 

 marginem anticum, necnon ramos 3 rectos, indivisos, excepto ultimo furcato, in marginem posticum elytri 

 emittens. Lamina supra-analis <$ triangularis, longiuscula, apice obtusa, medio sulcata. Cerci S 

 longissimi, teretes, apice incurvi et bicipes. Lamina subgenitalis <$ brevis, attenuata, bicarinata, margine 

 postico emarginato. Ovipositor parum incurvus, pronoti longitudinem triplicem subattingens, acuminatus, 

 apice subtilissime erenulatus. Lamina subgenitalis $ triangularis, obtusa, brevissima." 



2 . Long. corp. 18 ; pronot. 5 ; elytr. 34', lat. 14; femor. post. 16 ; ovipos. 11 millim. 



c? . Long. corp. 17; pronot. 45; elytr. 24, lat. 12 ; femor. post. 15 millim. 



Had. Panama (Brunner). — Colombia ; Ecuadok, Puna. 



2yy 2 



