1901.] NATURAL SCIENCES OF PHILADELPHIA. 283 



and somewhat constricted posterior to the dilation, the width here 

 being but half that of the latter; the collar rather acuminate, the an- 

 terior angle rather narrowly rounded, the posterior margin truncate, 

 the dilation having dentate margins. Tegraina moderately long, not 

 quite reaching the tip of the supraanal plate; the marginal field 

 coriaceous, the stigma large and opaque, the discoidal and anal 

 fields semi-hyaline, the costal margin pectinate. Anterior coxie 

 bearing on the proximal extremity a blunt tooth-like projection, 

 the inferior margin bearing five large spines, a small one occupying 

 each diastema; femora rather heavy, the external margin with 

 four spines, fifteen on the internal with some of the apical ones 

 reduced in size and presenting a formula which would give for the 

 anterior spines, reading posteriorly, Iiili ; tibise almost half as 

 long as the femora, bearing ten spines on the external and fifteen 

 on the internal margins. Median and posterior limbs moderately 

 slender; the tibite much lighter and more slender than the femora; 

 the first tarsal joint (metatarsus) very much elongate and equaling 

 the succeeding segments. Supraanal plate very broad and shallow, 

 the margin broadly rounded. Subgenital plate very large, the 

 posterior portion deeply folded and supplied with short, thick, 

 fleshy styles. 



General color dull ochre yellow tinged with dragon's blood red '^ 

 on the posterior border of each abdominal segment and on the 

 limbs, the median and posterior tibire being little sufiused. Head 

 obscurely suffused with olivaceous, this tint being especially notice- 

 able on the eyes, clypeus and mandibles. Tegmina dilute dragon's 

 blood red, palest at the anal l)order, richest around the stigma, 

 which is cream colored. 



3Ieasurements. 



Length nf body, 50.5 mm. 



Width of head, 9.5 mm. 



Length of pronotura, 17.25 mm. 



Greatest width of pronotum, 7 mm. 



Least width of pronotum, 3.75 mm. 



Length of tegmina, 26.5 mm. 



Greatest width of tegmina, 10 mm. 



Length of anterior femora, 16.5 mm. 



" Ridgway's Nomenclature of. Colors. 



