210 ORTHOPTERA. 



14 (13). Tegmina and wings abbreviate, shorter than the abdo- 



men. Pronotum doubly cristate, the anterior portion 



trilobed Dracotettix, Bruner. 



15 (12). Carinse of the frontal eosta decidedly divergent belowthe 



ocellus. 



16(17). Tegmina usually complete Colpolopha, Stal. 



17 (16). Tegmina abbreviated, rudimentary Draconata, Pictet et 



18 (11). Lateral carinse of the pronotum parallel or anteriorly [Saussure. 



divergent. 



19 (20). Median carina of the pronotum very prominent and 



widely interrupted on the anterior lobe, straight on 

 the posterior lobe; tegmina greatly abbreviated in 

 both sexes ; apex of the male abdomen blunt and 

 upturned; the sexes very unequal in size Cibotopteryx, Rehu. 



20 (19). Median carina of the pronotum less prominent and 



scarcely interrupted by the transverse sulci ; tegmina 

 generally complete in the male, more or less abbreviated 

 in the female; apex of the male abdomen somewhat 

 acuminate, not upturned ; the sexes more nearly equal 

 in size El^eochlora, Stal. 



21 (2). Fastigium of the vertex declivant or sloping. 



22 (37). Wings with the part immediately back of the humeral 



area dilated basally and provided with a number of 

 parallel cross-veins. 



23 (30). Fastigium of the vertex subtriangulately acuminate. 



Frontal costa compressed. 



24 (29). Pronotum cristate or carinate for its entire length, its 



anterior margin subtriangulately produced or advanced 

 upon the occiput. 



25 (28). Fastigium of the vertex subhorizontal. 



26 (27). Frontal costa above the antennas narrowed, not sulcate at 



its upper extremity. Pronotum obtusely carinate, the 

 lateral carina not reaching its front margin. Dilated 

 portion of wings very prominent Dictyophorus, Thunberg. 



27 (26). Frontal costa above the antennae not narrowed, and 



sulcate only to a limited degree. Pronotum more 

 acutely carinate, the lateral carinas reaching its front 

 margin. Dilated portion of wings inconspicuous . . Litoscirtus, Bruner. 



28 (25). Fastigium of the vertex strongly declivant. Frontal 



costa above the antennae both narrowed and sulcate. 



Pronotum distinctly cristate T^eniopoda, Stal. 



29 (24). Pronotum not at all cristate, but the median carina 



sometimes very distinct on the metazona, the anterior 



margin truncate or emarginate in the middle .... Chromacris, Walker. 



