208 PROCEEDINGS OF THE ACADEMY OF [May, 



which the band continues of a uniform width over the median groove 

 and then narrows down the posterior dechvity, sometimes sending off 

 a process from each side just in front of the posterior margin; sides of 

 cephalothorax black, with or without an indistinct short Hght colored 

 supramarginal stripe posteriorly, with sometimes one or two light 

 spots anteriorly; this marginal band when present conspicuous; eye 

 region entirely black; clypeus brown. Chelicerce bluish brown, a wide 

 black stripe crossing the face of each obliquely from the inner face out- 

 ward, leaving a paler tip and a paler portion above it. Labivm and 

 endites brown, with the tips paler. Sternum black, an obscurely lighter 

 median line in front, such as occurs in mihmia. Coxce of legs beneath 

 light brown. Legs strongly marked with deep brown or black annul a- 

 tions alternating with rings of yellow or light brown, the latter rings 

 much narrower on femora and tibise, of the same width as the black 

 ones on the metatarsus; the tarsi clear yellow or light brown 

 or the anterior ones sometimes also obscurely annulate. Abdomen 

 above black, with a lanceolate mark of red-brown at base and a 

 series of transverse light marks behind, each of the latter being 

 composed of mostly four confluent black-centred spots of same color; 

 the transverse marks frequently obscure; sides of abdomen black, 

 minutely spotted with brown, the spots large below; venter brown to 

 gray. Spinnerets brown. Epigynum brown, of same hue as venter 

 inconspicuous. 



Face but little lower than the length of the chelicerae; sides straight 

 and vertical or nearly so. 



First row of eyes much shorter than the second, prociu'ved; anterior 

 median eyes their diameter or more apart, closer to lateral eyes which 

 are of equal size; anterior lateral eyes twice their diameter from front 

 margins of clypeus, their diameter or a little more from eyes of second 

 row; anterior median eyes their diameter from eyes of second row; 

 eyes of second row about their diameter apart; quadrangle of posterior 

 eyes rather more than one-fourth the length of the cephalothorax. 



Margins of furrow of chelicerce armed as usual. Labium of same 

 width as length or very nearly so (1 : 1 to 7.25 : 7); basal excavation 

 longer and shallower than usual, but less than one-third the length of 

 labium; sides widely rounded below, straight above, front or anterior 

 margin truncate or slightly indented at middle. 



All tarsi spinulose beneath, the spinules arranged on all in two rows; 

 the lateral scopulse of anterior pairs very sparse or scarcely evident. 



Depressed area of epigj^num anteriorly very narrow; the posterior 

 area wide, almost completely filled by the expanded guide which 



