1904.] NATURAL SCIENCES OF PHILADELPHIA. 661 



when viewed laterad distinctly arcuate and sinuate dorsad; antennae 

 slender, about two-thirds the length of the caudal femora, inserted on 

 a level with the ventral margin of the eyes; paired ocelli placed half- 

 way between the vertex and the insertion of the antennae; eyes sub- 

 globose, quite prominent, somewhat elevated. Pronotum elongate, 

 depressed dorsad, surface undulate with rounded boss-like elevations; 

 cephalic margin truncate, cephalic lateral spines short and blunt; 

 lateral carinas parallel cephalad; lateral spines strong, depressed, 

 directed laterad without any cephalic curve; inferior sinus rectangu- 

 late; humeral angle little extended and represented by the lateral 

 carinae; median carina low, fading caudad and subobsolete between the 

 sulci; elevations of the pronotum distributed as follows: one large 

 median boss in the interhumeral region, two series of paired protuber- 

 ances placed caudad; caudal process extending beyond the cau?fal 

 femora a distance equal to their length. Tegmina elongate, acuminate, 

 apex narrowly rounded, surface coarsely reticulate. Wings reaching to 

 the tip of pronotal process. Cephalic femora with the carinae undulate. 

 Median femora slenderer than the cephalic and wdth the carinae undu- 

 late. Caudal femora rather slender, sparsely granulate, carinae not 

 undulate or dentate, femoral lobe low and subobsolete, external pagina 

 and dorso-lateral face with strong oblique sculpture; tibiae with the 

 margins expanded, lamellate, unarmed but very finely serrate; meta- 

 tarsi about half again as long as the remaining tarsal joints. 



General color bistre, obscm'ely marked on the lateral carinae and the 

 pronotal spines with ferruginous. Cephalic and median limbs with 

 several obscure bands of wood brown. Caudal tarsi, margins and 

 proximal portions of the tibiae and two obscure bands on the dorsal 

 aspect of the femora wood brown. 



Measurements. 



Length of body, 15 mm. 



Length of pronotum, 21.5 " 



Humeral width of pronotum, 4 " 



Greatest width of pronotum (including spines), .... 6.8 " 



Length of caudal femora, 8.5 " 



A paratypic female, identical with the type in all respects, has also 

 been examined. 



I take pleasure in dedicating this striking species to the collector. 

 Dr. W. L. Abbott, who by his tireless energy has placed in the hands 

 of American zoologists an enormous amount of valuable exotic mate- 

 rial. 



