416 Pomona College Journal oi' Entomology 



Sclerobunus robustus Packard 

 The anterior femora have three or four little tubercles, each tipped with a 

 stiff Iiair; each of the four posterior claws have one large projection each side; 

 the male has the second joint of palpus more gibbous than in the female. 

 Length 3 to 4 mm. Known from Mt. Shasta region, also Washington and 

 Colorado. 



Sclerobunus brunneus Bks. 



Dorsum and legs have many little tubercles, each tipped \\ith a stiff hair; 

 each of the four posterior claws have two curved projections each side; second 

 joint of palpus not as large as in S. robustits. Length 2 mm. From Wash- 

 ington. 



Scotolemon 



The species of this genus often live in caves, and such is the habitat of the 

 one known Californian species. 



Scotolemon califomica Bks. 

 No eyes, eye-tubercle not prolonged into a spine. Pale yellowish, dorsum 

 of abdomen rather darker. Dorsum with small pointed granules, those on 

 the abdomen arranged in transverse rows ; venter and coxk with similar 

 granules, often tipped with a hair. Palpi large and stout, the joints with 

 pointed processes; legs slender, finely granulate. Length 1.8 mm. From 

 Alabaster Cave, Calif. 



Taracus 

 Two species are known from California. 



1. Body with many small projections, each tipped with a hair spinosits. 



Body without hair-bearing projections pallipcs. 



Taracus spinosus Bks. 

 Pale yellowish, claws of mandibles reddish-brown ; cephalothorax smooth ; 

 just behind the eye-tubercle is a median spine flanked each side by an oblique 

 row of tubercles. Dorsum and venter of abdomen closely covered with pro- 

 jections, each with a stiff bl^k hair at tip, those on dorsum are curved. 

 From Southern California. 



Taracus pallipes Bks. 

 Rather brownish above, mandibles dark ; cephalothorax and abdomen smooth, 

 without projections, the spine behind the eye-tubercle is not flanked each side 

 by a row of tubercles. From Mt. Shasta, Calif., and also in Washington 

 (Olympia). (Fig. 149.) 



Phlegmacera 



This genus is readily known by the swollen joints of the palpi, the last 

 joint being very small ; one species has been taken in California. 



