1906.] NATURAL SCIENCES OF PHILADELPHIA. 289 



cephalic genicular lobe with one; cephalic tibiae equal to the femora 

 in length, unarmed dorsad except for a short distal spine on the 

 caudal margin, ventral margins each armed with two mobile spines, 

 the distal ventral margin with one short median spine, spurs two in 

 number, comparatively short, subequal; cephalic tarsi compressed, 

 two-thirds the length of the tibiae, metatarsi slightly longer than the 

 remaining joints, distal joint much slenderer than the others, arolia 

 absent. Median femora very slightly shorter than the head and 

 thoracic segments, ventro-cephalic margin with a single spine in the 

 distal section, ventro-caudal margin unarmed, both genicular lobes 

 with large mobile spines, that of the cephalic lobe slightly shorter than 

 the other; median tibiae somewhat longer than the femora, the ventral 

 margin with four paired spines and one median one on the distal mar- 

 gin, spurs rather short, the caudal the longer and that not more than 

 a third the length of the metatarsus; tarsi similar to the cephalic. 

 Caudal femora elongate, nearly half again as long as the body, consid- 

 erably inflated in the proximal half, slender in the distal half with a 

 slight genicular enlargement, ventro-cephalic face of the proximal 

 inflated portion with several deep longitudinal impressions, the cephalic 

 ventral carina much lower than the caudal, which is moderately 

 lamellate, cephalic armed with ten spines in the distal section, the 

 caudal armed with sixteen spines in the distal two-thirds, genicular 

 lobes each with a very short mesad spine; caudal tibiae slightly longer 

 than the femora compressed, ventral margins imarmed, dorso-cepha- 

 lic margin with thirty-two fixed spines, dorso-caudal with thirty, 

 spurs in three pairs, the dorsal mvich the larger and with the caudal 

 one slightly longer than the cephalic and but little shorter than the 

 metatarsus ; caudal tarsi similar to the others in structure but slightly 

 larger and more robust. 



General color mars brown, the caudal margins of the thoracic and 

 abdominal segments rather irregularly and broadly marked with seal 

 brown, the median sections of the segments, however, being clear or 

 nearly clear mars brown, while the mesonotum and metanotum bear 

 irregular touches of sulphur yellow. Face ventrad of the eyes and of 

 the antennae touched with vandyke brown ; eyes walnut brown ; anten- 

 nae seal brown, the proximal joints paler and maculate with seal brown, 

 joints beyond the second with two characters of annulations of lemon 

 yellow, a broad annulation and a number of narrow annulations be- 

 tween each broad one, both characters of annulations becoming distant 

 distad. Limbs with the base color straw yellow with a faint touch of 

 lavender on the proximal portions of the femora, all strongly annulate 



