aceidiim:. 219 



148 (149). Head large, and eyes (at least in the male) large and 



very prominent, the breadth of the head distinctly 

 exceeding the greatest width of the pronotum ; inter- 

 space between the mesosternal lobes of the male 

 slightly transverse Cephalotettix, Scudder. 



149 (148). Head normal and the eyes not very prominent even in 



the male, so that the breadth of the head does not 

 exceed the greatest width of the pronotum; inter- 

 space between the mesosternal lobes of the male 

 distinctly longer than broad. 

 150(151). Tegmina lobiform ; last ventral segment of the male 

 abdomen protruding beyond the tip of the supra-anal 

 plate by less than one-half the length of the latter ; 

 cerci of the male compressed, subequal, the tip broad . Rhabdotettix, Scudder. 



151 (150). Tegmina linear; last ventral segment of the male 



abdomen protruding beyond the tip of the supra-anal 

 plate by much more than one-half the length of the 

 latter; cerci of the male tapering from the base, 

 the tip acuminate Cyclocercus, Scudder. 



152 (143). Furcula of the male consisting of a pair of parallel, 



attingent, cylindrical prominences, generally twice 

 as long as broad. 



153 (158). Tegmina lobiform. 



154 (155). Interspace between the mesosternal lobes of the male 



slightly transverse. Cerci of the male forming com- 

 pressed, subequal, lamina? Sinaloa, Scudder. 



155 (154). Interspace between the mesosternal lobes of male 



decidedly elongate. Cerci of the male flattened. 

 Abdomen above varied with > -shaped pale markings. 

 Carina? of the outer face of the hind femora alter- 

 nately pale and darker. 



156 (157). General colour of the insect green or greenish, varied 



with yellow. Lower carina of outer face of the hind 

 femora dashed with yellow. Cerci of the male 

 flattened, the posterior edge of the apical fourth 

 obliquely docked Calotettix, Bruner. 



157 (156). General colour of the insect brownish testaceous, varied 



with dark brown or black. Lower carina of the outer 

 face of the hind femora testaceous and dashed with 

 black Agrcecotettix, Bruner. 



158 (153). Tegmina wanting ; interspace between the mesosternal 



lobes of the male longer than broad; cerci of the 



male styliform, conical Paraidemona, Brunner. 



2 Ff2 



