36 Journal New York Entomological Society. [^'°'- xxix. 



epigynum of the females, as noted by Kulczynski, is very close in 

 form to that of E. arctica (White). The epigyna of the specimens 

 from St. Paul Id., agree in their larger proportions with those of the 

 typical Siberian specimens. 



CEdothorax septentrionalis Kulczynski. 



Gongylidium septentrionalis, Op. cit., p. 14, pi. i, f. 18. 

 Several females. 



CEdothorax nesides new species. Plate III, figs, i, 2, 



Male. — Carapace black or nearly so, the lighter grovind color showing but 

 weakly, the sternum similar. Legs fulvous. Palpus fulvous excepting the 

 tarsus, which is blackish. Cephalothorax high ; in side view it is seen to rise 

 obliquely from eye area, then to become nearly horizontal to beginning of the 

 posterior declivity. Clypeus slanting forward a little from eyes to lower mar- 

 gin, the latter in dorsal view appearing weakly convex ; in height equalling 

 the length of the median eye area. Posterior row of eyes slightly procurved ; 

 eyes eqvial and equidistant or very nearly so, the interval between each two 

 being equal to the diameter of an eye. Anterior row of eyes with medians 

 much smaller than the laterals, their diameters being to each other about as 

 2.5 : 4. Upper margin of furrow of chelicera with three large teeth, lower 

 margin with five minute teeth. Palpal organ with embolus curving across end 

 of bulb from mesal side to ectal and then back, its distal portion resting on 

 the prominently exposed guide much as in, e.g., the European CE. agrestis. 

 For paracymbium and other details see fig. i. Tibia with a single simple 

 broad process above which at tip curves slightly ectad. See fig. 2. 



Length pf cephalothorax, i mm. ; width, .8 mm. Length of tib. + pat. H, 

 .8 mm. 



Genus Aigola new genus. 



Tibia of male palpus wholly lacking processes. Cymbium with 

 ectal margin incised toward distal end, forming a small lobe. Para- 

 cymbium large, curved, shortly and singularly more or less expanded 

 or furcate at distal end and with a spur at base. Tegulum a broad, 

 strongly chitinous plate lying along the mesal side of the retracted 

 organ and curving ectad to the middle. Ectad of its mesal end is a 

 membranous lobe which projects freely distoectad. At distal end of 

 bulb a short, strongly chitinous, weakly curved apophysis. Embolus 

 not exposed. Posterior row of eyes (rriales) straight or a little re- 

 curved; median eyes nearer to each other than to the laterals. An- 

 terior row of eyes a little recurved, the median eyes smaller than the 

 laterals and much closer together than to the latter. Clypeus high. 



