240 Annals Entomological Society of America [Vol. XII, 



Amaurobius nomeus sp. nov. 



Female — Carapace and sternum light yellowish brown, becoming 

 blackish in anterior portion of pars cephalica. Legs paler. Labium 

 and endites chestnut, pale across tips. Chelicerae black. Abdomen 

 above greyish yellow, with a narrow, median longitudinal dark mark 

 extending well caudad of the middle, where its point ends at the angle 

 of a transverse chevron line, which is followed by several others; in 

 front of the first chevron there are two or more lines running obliquely 

 caudoectad from the edge of the median mark. Sides of abdomen 

 darkened by numerous spots and streaks as is also the venter on which 

 they tend to form two longitudinal stripes and a narrower median line 

 separated by clear spaces. Anterior row of eyes procurved; median 

 eyes smaller than the laterals, their radius or a little more apart, and a 

 little more than their diameter from the laterals. Posterior row of 

 eyes longer than the anterior; eyes smaller than the anteriors; the 

 medians smaller than the laterals. Median eyes forming a trapeziiim 

 wider behind than in front in ratio of about 25:20 and wider behind 

 than long, the length scarcely exceeding the anterior width. Tibia I 

 armed beneath with two pairs of spines, none being present at distal 

 end ; tibia with a single spine at distal end in addition to the two pairs. 

 Epigvnum smooth, median interval narrow, the process ventrally 

 rounded. See Plate XIV, Fig. 1 . 



Male palpus is shown in Plate XIV, Fig. 2. 



Length 11.2 mm. Length of cephalothorax, 5 mm. Length of 

 tib. + pat. I, 4.1 mm.; of tib. + pat. IV, 4.3 mm. 



Type— M. C. Z. 416. 



Utah: Uintah Mts., 10,000 ft. 



This species has resemblance to A. benneti B and A. pictiis S. 

 When placed alongside of these species the cephalothorax is 

 seen to be obviously more narrowed at the anterior end. It is 

 distinct in the details of epigynum and eye arrangement. 



Dictyna uintana sp. nov. 



Female — Carapace fuscous or nearly black, clothed with white hairs. 

 Sternum blackish. Legs yellow, distinctly annulate with black, the 

 annuli of tibia and metatarsus deepest, the femora with a submedian 

 and a distal annulus, patella with annulus at distal end, tibia with an 

 annulus at each end and metatarsus with an annulus at distal end and 

 a broader, but less distinct proximal one. Abdomen testaceous; at 

 base above with a long triangular to hour-glass shaped dark brown 

 mark followed by a number of chevron marks, of which the first is 

 connected by its apex with the basal mark; caudal end of dorsum 

 typically covered by a solid black area; sides of abdomen darkened 

 above by streaks and spots of brown; venter commonly showing an 

 often vague longitudinal median dark band. Anterior row of eyes 



