260 NEW NORTH AMERICAN DECTICINAE 



margin in dorsal aspect weakly concave. Tegmina, due to the brief produc- 

 tion of the pronotum caudad and its convexity in that portion, fully exposed, 

 approximately one and one-half times as long as the pronotum, stridulating 

 field large, the tegmina beyond this point produced in latero-external portion, 

 this area being longer than its proximal width, with margins converging to 

 the very broadly rounded apex, in length less than that of the proximal sec- 

 tion of the tegmina,^- furnished with a coarse, irregular network of veins, 

 among which the discoidal vein is heavier and direct, the median vein irreg- 

 ular and no heavier than the irregular cross-veins. 



Penultimate tergite slightly more produced than preceding tergites, with 

 a rather broad, percurrent," medio-longitudinal cleft, the cleft thus dividing 

 this tergite into two similar sections which are movable, the cleft filled in its 

 proximal two-thirds with a soft connecting integument, the distal margin of 

 tergite transverse to the cleft. Supra-anal plate beneath deflexed between 

 the cereal bases, short, shield-shaped with apex rounded. Cerci very large 

 and heavy, straight, tapering very slightly to the heavy rounded apex, armed 

 internally mesad with a very heavy erect tooth, two-thirds as long as remain- 

 ing distal portion of cercus, vertical to shaft but with heavy apical spine curv- 

 ed slightly proximad, this tooth with proximal face armed with a number^^ 

 of stout erect teeth, the internal surface of the shaft of the cerci, from this 

 point proximad, deplanate with dorsal and ventral margins slightly raised 

 and broadly rounded. Titillator rejaresented by two similar processes, di- 

 rected dorso-distad from the soft integument of the anal chamber, each chiti- 

 nous, shaped like the blade of a short pen-knife, with edge dorsad armed with 

 minute curved teeth. Subgenital plate with two rounded parallel carinae 

 distad, the large styles situated in sockets at the apices of these, the distal 

 portion of the free margin between rectangulate emarginate with apex round- 

 ed. Styles five times as long as proximal width, about two-thirds as long as 

 the distance between their bases, straight, tapering slightly to the rounded 

 apex. 



Ventral margins of femora armed.'^ Genicular lobe very frequently sup- 

 plied with a single minute spine'*'^ except the caudal genicular lobe of the ceph- 

 alic femora which, apparently, is never armed. Caudal tibiae armed distad 

 with three pairs of short heavy spurs, of which the longest is about half as 

 long as the matatarsus. 



Allotype — 9 ; same data as type, except that it was taken at 

 13,200 feet. [Hebard Collection.] 



Agrees closely with male, except in the following features. Pronotum not 

 inflated caudad, latero-caudal shoulders slightly more sharply rounded. 

 Tegmina re])resented by elongate, lateral, rotundato-trigonal pads, in length 

 slightly greater than that of ])ronotum, slightly over half as wide as long, the 



'*'■' Varying in paratyi)es to very slight ly longer llian jjroximal .section. 



•''' Twc'lve or nior(\ 



■'"See details after table of measureiiients. 



^■' In two examples a single genicular lobe bears two minute si)ines. 



