1905.] NATURAL SCIENCES OF PHILADELPHIA. 407 



lateral carinse of the frontal costa; lateral foveolse subtrigonal, subob- 

 solete; frontal costa snlcate, parallel above the ocellus, expanding 

 below and reaching the clypeal margin; accessory facial carinse dis- 

 tinct; eyes ovate in the male, subelliptical in the female, slightly longer 

 than the infraocular portion of the gense in the male, slightly shorter 

 in the female; antennae depressed, slightly ensiform, slightly longer 

 than the pronotum in the male, distinctly shorter in the female. Pro- 

 notum with the median crest rising evenly from the cephalic margin to 

 within a very short distance of the apex of the caudal process where 

 it is roundly and raggedly excised into a semicrescentic outline ; trans- 

 verse sulci distinctly and narrowly but not deeply cutting the crest; 

 cephalic margin produced over the base of the occiput in a very acute 

 harpoon-shaped process, caudal margin produced into a structure of 

 similar character but of much greater size; lateral carinae distinct, 

 bluntly tuberculate; lateral lobes of the pronotum distinctly longer 

 than deep. Prosternal spine erect, short, thick and rather blunt. Teg- 

 mina short, not reaching the apex of the abdomen and falling far short 

 of the tips of the caudal femora, subsagittate, the apex acute, costal 

 expansion distinct but short; siu-face subcoriaceous, irregularly reticu- 

 late. Wings two-thirds the length of the tegmina, the apex acute- 

 angulate. Cephalic and median limbs short, the femora slightly but 

 distinctly expanded distad. Caudal femora slightly compressed, 

 considerably enlarged proximad and distinctly constricted in the 

 pregenicular region, carinse denticulate, the dorsal carina serrato- 

 dentate; tibiae slightly shorter than the femora, spines nine in number 

 on each margin, those of the internal considerably longer and more 

 curved than those of the external; caudal tarsi slender, the third joint 

 distinctly shorter than the metatarsus. 



General color, vandyke brown in the female, raw umber in the male, 

 the whole surface sprinkled with small blackish-brown points, which,, 

 on account of the base color, are less conspicuous in the female than in 

 the male. Eyes burnt umber. Pronotum with the lateral carinae lined 

 with blackish-brown on the prozona. Tegmina of the male vandyke 

 brown, with a semicircular pale spot at the base of the costal expansion,, 

 a marking which is very faintly indicated in the female. Wings ver- 

 milion, apex and a rather dull taenia which extends to the base of the 

 wing Vandyke brown, the costal vermilion dull. Abdomen with the 

 overlying maculations clear black. Caudal femora with a distinct 

 "pepper and salt" appearance; caudal tibiae very dull glaucous, spines 

 suffused with blackish. 



