236 NEW NORTH AMERICAN DECTICINAE 



oaliper-like; apices acute. Subgenital plate ventrad with distinct lateral 

 and a brief median carinae, the lateral pair styliform; distal margin V-emar- 

 ginate; styles distinct, short, tapering. 



Femora with all ventral margins strongly spined, those of the two margins 

 subequal in length; genicular lobes strongly bispinose. Cephalic femora a 

 fourth longer than the combined length of head and pronotum; spines of 

 ventro-cephalic margin six to seven in numl:)er, of ventro-caudal margin eight 

 in number: cephalic tibiae with foramina rimate, the spines of ventral surfaces 

 hexacentroid^ in character, six in number on each margin, the proximal three 

 uniform in length, the distal three decreasing in length; dorso-cephalic margin 

 unspined, dorso-caudal margin with five spines. Median femora slightly 

 shorter than the cephalic femora, ventro-cephalic margin with six spines, 

 ventro-caudal margin with eight to nine spines: median tibiae with six spines 

 on each ventral margin, the spines similar to but shorter than those of the 

 cephalic tiliiae; dorso-cephalic margin with four to five spines, dorso-caudal 

 margin with six spines. Caudal femora equal in length to the head, pro- 

 notum and tegmina combined, rather slender, appreciably inflated proximad, 

 ventro-external margin with eleven to thirteen spines, ventro-internal margin 

 with eight to ten spines: caudal tibiae slightly longer than the femora, all 

 margins spined; distal spines three paired: caudal tarsi with plantula short 

 and rounded. 



Allotype. — 9; same locality as type. September 12 to 13, 

 1912. (Rehn and Hebard.) [Hel)ard Collection.] 



The features here given are those of difference from the description of the 

 type id"). 



Pronotum slightly narrower than in male, the greatest caudal width of 

 disk contained one and one-third times in the greatest length of the same. 

 Tegmina with the humeral trunk proximad less thickened and less arcuate 

 than in male; sutural margin in general straight, except for the proximal 

 obtuse-angulation . 



Penultimate abdominal tergite with the median emargination V-shaped, 

 deep, rounding into the truncate distal margin of the segment, which is not 

 lol>ate developed over cereal bases; surface of tergite relatively simple: ante- 

 l)cnultimate tergite with very weak median carina. Cerci but slightly longer 

 than the supra-anal plate, conicuxl, apex acute, there faintly incurved. Ovi- 

 I)<)sitor slightly longer than the body and one and one-half times as long as 

 the caudal femora, slender, with a very faint ventral l)end at proximal two- 

 fifths, proximal ])ortion moderately thickened, more regularly tapering in this 

 se(!tion when viewed from the dorsum than when seen in profile; dorsal and 

 ventral margins parallel in distal three-fourths, the dorsal margin in distal 

 tenth obUquely arcuato-truncate to the acute apex, which is ventral in posi- 

 tion; margins entire. Subgenital plate rather small, when seen from venter 



^ That is, with spines similar to those foimd in species of the genus IJcva- 

 centrus. 



