86 Illinois State Laboratory of Natural History. 



ultimate or penultimate segment, slightly contracting near 

 cephalic margin of abdomen, then gradually expanding until 

 about the beginning of the caudal third of the abdomen, where 

 it again slightly contracts. Ventrum slightly paler than 

 dorsum ; both finely granulate and entirely glabrous. Eye 

 eminence slightly wider than high, black above, canaliculate, 

 with small black tubercles over the eyes. Mandibles light 

 yellowish-brown, tips of claws black ; second joint with short, 

 sparse hairs. Palpi long, reddish brown ; tarsal joints paler. 

 Femur and patella curved, with two rows of rather blunt, dark 

 tubercles on the outer ventro-lateral surface ; femur also having 

 a few small subobsolete ones on its dorsal surface. Tibia with 

 a similar row on its outer ventro-lateral surface, a short row 

 on the distal portion of its inner ventro-lateral surface, and a 

 short row on the proximal portion of its ventral surface. 

 Tarsus pubescent, Avith a row of short, blunt, black tubercles 

 on the inner ventro-lateral surface, extending from the 

 base to near the a})ex. Legs light brown or black, patella 

 generally black and tarsi brown, the other joints varying from 

 one color to the other. Coxte reddish brown, minutely tuber- 

 culate. Trochanters generally dark brown, with minute scat- 

 tered tubercles. Femora and patella? with fine spinose tu- 

 bercles. Tibiaj with very short hairs. Shaft of penis slender, 

 subcylindrical, not broadened distally, bent at an obtuse angle 

 and terminating in a very acute point. 



?. Body 8-9 mm. long, 5-6 mm. wide. Palpi 5 mm. long. 

 Legs: I., 42 ram.; IL, 90 mm.; TIT., 43 mm.; IV., 61 mm. 



Besides its rounder body and much more robust appear- 

 ance, it differs from the male as follows : 



Dorsum of a much darker shade of brown, with less of the 

 reddish tint, and ventrum paler. Second joint of mandibles 

 with fewer hairs. Palpi shorter, more slender, with the rows 

 of tubercles on the tibia subobsolete, and that on the tarsus 

 entirely wanting. T^egs generally light brown, with black 

 annulations at the articulations. Ovipositor white, with no 

 color in the apical rings. 



Described from many specimens collected in Union Co., 111., 

 September 25th, 1886. It has also been obtained in Johnson 

 Co., 111., and at East Cairo, Ky. 



