1904.] NATURAL SCIENCES OF PHILADELPHIA. 295 



band, each black anteriorly and white posteriorly, the most anterior 

 being the most distinct; at each end of each of these crescentic mark- 

 ings is a large pale gray spot. Sides above dappled gray and blackish, 

 below with larger black spots scattered on a gray or yellow ground. 

 Venter in front of epigynum gray or yellow with a single pair of black 

 spots. Just behind the rima epigastrica is a broad, transverse black 

 band the anterior edge of which is straight and sharpl}^ demarcated, 

 but the posterior edge of which is extended backward as a more or less 

 interrupted, median black band extending to a httle in front of the 

 spinnerets, and a pair of lateral black bands (or rows of black spots) 

 M^hich curve backward to meet the median band just in front of the 

 spinnerets ; thus the venter appears to possess a pair of elongate yellow 

 or yellowish-gray areas, separated by the median black band, bordered 

 laterally and posteriorly by the lateral black lines, and anteriorly by 

 the transverse black band. Spinnerets blackish. Chelicera anteriorly 

 with orange and black hairs, the macula red ; maxillce reddish-brown, 

 labium darker. Legs above grayish mth one or two black spots on the 

 coxae and black longitudinal markings on the posterior aspect of the 

 femora; below each coxa is whitish, sometimes with a longitudinal 

 black stripe, each femur w^hitish with a black ring at its distal end, 

 each patella whitish, the first tibia blackish its entire length, the tibiae 

 of the other pairs whitish in the middle and black at the ends, the tarsi 

 and metatarsi black. Palpi grayish, unmarked except that the ter- 

 minal joint is black on the inferior surface. 



Comparisons. — This large and beautiful species is quite distinct from 

 any other. It is very abundant in open areas of the limestone region of 

 Austin, and lives in deep cyhndrical holes lined with silk, and with 

 the opening of the tube raised above the surface of the ground, as in 

 G. arenicola. 

 Geolycosa latifrons n. sp. PI. XIX, figs. 15-18. 



(Specimens from the vicinity of Austin, Texas.) 



Eyes. — First row much nearer the second row than to the clypeal 

 margin, almost or fully as broad as the second row, its middle eyes 

 slightly larger and higher, and nearer the lateral eyes than each other. 

 Eyes of second row largest, separated by almost their diameter. Third 

 row broadest, about 1.5 times the diameter of one of its eyes behind 

 the second row. Dorsal eye area to cephalothorax as 1 : 6.5. Quad- 

 rilateral of the posterior eyes broader than long. 



j^o^^. —Cephalothorax very broad in front, there from five-eighths 

 (cJ^) to four-fifths (9) its greatest transverse diameter, very high at 

 the posterior eyes and from there gradually sloping to its posterior 



