JAMES A. G. REHN 221 



valves, with the external margins more decidedly crenulate mesad and the 

 ventral surface smooth: cerci two-thirds as long as the caudal femora, taper- 

 ing, clothed with a thick coat of short, adpressed hairs and numerous erect, 

 much longer hairs. Cephalic and median limbs robust, moderately com- 

 pressed: cephalic fembra but slightly longer than the dorsal length of the 

 pronotum, median femora suberjual in length to the cephalic femora: cephalic 

 tibiae about a fourth longer than the femora, imperforate. Caudal limbs 

 rather slender (for the genus): caudal femora nearly as long as the tegmina, 

 surpassing the apex of the abdomen l)y about half the median length of the 

 pronotum, the greatest depth of the femora contained three and one-half times 

 in the greatest length of the same; the femoral form rather regularly tapering 

 from the proximal third to the apex: caudal til)iae verj- faintly longer than 

 the caudal femora, rather heavy: dorsal margins armed with five major spines, 

 those of the internal margin much longer than the external spines; intercalated 

 spinulations of external margin — 3-2-2 (or 1)-1, of internal margin — 3 (or 2)- 

 3 (or 2)-3 (or 2)-2; 'dorsal disto-ihternal spur slightly over twice the length 

 of the ventral one: caudal metatarsi rather short, armed on each dorsal mar- 

 gin with two spinulations; metatarsal spur elongate, reaching nearly to the 

 middle of the third tarsal joint. 



General color dull ochraceous-bufT, marked with fuscous as follows: paired, 

 ■weakly colored and poorly definetl areas dorso-caudad of t.he eyes; the whole 

 of the pronotal surface excepting the narrow ventralsection of the lateral 

 lobes and a faint tawny lining along the medio-longitudinal line; a weak 

 infuscation proximad on the humeral trunk; a genicular darkening on the 

 cephalic femora and median femora and tibiae; a narrow medio-longitudinal 

 line on the external face of the caudal femora, a proximal, a more distinct 

 median cloud on the dorsal surfa^ee of the same and a decided distal infusca'- 

 tion; caudal tibiae and two proximal tarsal joints fusCous, except for a pale 

 area proximo-dorsad on the tibiae. Eyes mars l)rown; antennae pale sanford's 

 brown. Venation of the tegmina pencilled with ferruginous to bay. Ovi- 

 ])ositor chestnut, lined on external face with l)lack, these covering the greater 

 portion of the valves. Caudal tibiae with the spines dull burnt sienna, at the 

 ba.scs and the tips washed with l)l;ickish-fuscaus. Abdomen with the dorsal 

 surface blackish fuscous. 



Length of body, 23 mm.; length of pronoluni, 4.7; greatest (caudal) width 

 of pronotum, 4.3; length of tegmcii, lt),2: Iciigtli of caudal femur, 19.(5; length 

 of ovipositor, 10.2. 



The type of this most interesting and strongly characterized 

 species is unique. 



TRANS. AM. ENT. SOC, XLIV. 



