10 PROCEEDINGS OF THE NATIONAL MUSEUM. volxx 



/'. Last dorsal Me^iuent of male furnished uiesially with 'a pair of slightly 

 protuberant rounded lobes; cerri of male comjtressed laminatf, beyond 

 the slightly narrowing basal portion equal or suboqual, the tip curved 

 downward or inleriorly angulate at apex. 

 y\ Prosternal spine erect ; interspace between mesothoracic lobes of male I 

 nearly twice as long as broad; fore and middle t'euiora of m:<le notice- 

 ably gibbous; s;ibgenital plate of male termiiuiting in a large conical 



tubercle 6. liaruUttix {\}.21\ 



If-. Trosternal spine retrorse; interspace between mesotiioracic lobes of | 

 male only a little longer than broad; fore and middle femora of male 

 only slightly gibbous; subgeuital plate of male with noajucal tubercle. 



7. Phaulotetiix (p. 2J)). 

 /^ Last dorsal segment of male entirely without projecting lob»'8 or fur- ' 

 cula in any form, unless as exceptionally broad and short sessile plates; 

 cerci of male (except in Ceph:tb>teitix) apically acuminate or curved 

 upward. 

 tf. Head large and eyes, at least in male, large and very prominent, the 

 breadth of the head distinctly e.vceeding the greatest width of the pro- 1 

 notum; Interspace between meuuthoracic lobes of male slightly tran>- j 



verse 8. CephalolettU (p. 30 . 



fl'. Head normal and eyes not very prominent even in the male, so that 



the breadth of the head does not exceed the greatest width of the pro- 



uotum; interspace between mesotiioracic lobes of male distinctly longer 



than broad. 



liK Tegniina lobiform; snbgenital plate of male protruding beyond 



the tip of the supraanal plate by less than half the length of the 



latter; cerci of male compressed, subequal, the tip broad. 



9. Ilhahdoieitix (p. 32). 

 h^. Tegm in. 1 linear; snbgenital plate of male protruding beyond the 

 tip of the supraanal piate by much more than half the length of the 

 latter; cerci of male tapering from the base, the tip acuminate. 



10. CyclocercHS (p. 36 1. 

 e\ Furcula of male consisting of a pair of parallel, attingeut, cylindrical 

 prominences, generally at least twice as long as broad. 



/'. Tegmina lobiform; interspace between mesosternal lobes of male 

 slightly transverse; cerci of male forming compressed, subequal laminae. 



11. Sinaloa (p. 40). 

 /-. Tegmina wanting; interspace between mesosternal lobes of male longer 



than broad ; cerci of male stylifoiMu, conical 12. Paraidemona (p. 41 ). 



d\ Tegtnina fully developed or abbreviate, never much if any shorter than 

 thepronotum; hind margin of pronotum distinctly angulate; fore and middle 

 femora scarcely more gibbous in the male than in the female (except in some 

 species of Campylacantha). 



eK Tegmina fully developed; disk of pronotum nearly flat, the lateral lobes 

 nearly at right angles to it, the p«>sterior margin rectangulate or subiectaii- 

 gulate; prosterual spine quadrate, appressed, broadly truncate. 



13. Aidemona (p. 41). 



e^. Tegniina abbreviate; disk of pronotum tectiform, the posterior margin 



obtusangnlate; prosterual spine more or less conical and acuminate. 



/'. Head not prominent, the summit very slightly arclied longitudinally; 



prosternal spine erect ; furcnla of male composed of projecting cylindrical 



lingers; surface of the body very feebly pilose 14. /7j//>o<7« /ora (p. 4(51. 



fK Head prominent, the summit strongly arched longitudinally; proetir- 

 nal spine more or less retrorse; furcula of male reduced to slight, scarcch 

 projecting lobes; surface of body rather densely pilose. 



15. Camp!i/lacantha{]iA^] 



