40 Journal New York Entomological Society, ["^'o'- x>^I-^. 



curving freely distad from its outer edge a conspicuous, smooth, 

 distally acuminate blade. The females of Utopicllnm have the epi- 

 gynum elongate and narrowed caudad and prolonged much behind 

 the epigastric furrow. In addition to the genotype, the Gongylidiiim 

 curz'itarsis of Emerton belongs clearly to this genus and will ac- 

 cordingly stand as Utopicllnm ciirritarsis (Emerton). 



Arctilaira bellans new species. 



Hilaira glacialis Kulczynski (nee Thorell 1871), Mem. Acad. Imp. 

 Sci. St. Petersb., 1908, 18, no. 7, p. 25, pi. 2. f. 45, 48, 49. 



A male and several females of this Arctic species, which has x 

 distribution across Siberia and Arctic America. It is the form de- 

 scribed by Kulczynski in the place above cited under the name Hilaira 

 glacialis, but is apparently not the Hilaira glacialis of Thorell accord- 

 ing to the description of a male of this species given by Simon.^ 



Tmeticus armatus Banks. 



Proc. Ent. Soc. Wash., 1906, 7, p. 98. 

 One female. 



Genus Montilaira new genus. 



Cephalothorax suggesting that of Arctilaira, but the tubercles of 

 the eyes less prominent and the median depression in front of the 

 postocular elevation less marked. Posterior row of eyes straight, the 

 eyes well separated, the medians nearer to each other than to the 

 laterals. Upper margin of furrow of chelicera armed with five large 

 teeth, the lower margin with five minute teeth, alike in male and 

 female. Chelicera of male armed in front. Metatarsi of all legs 

 unarmed in both sexes. Tibia of each leg of the first three pairs 

 typically armed above with two spines, that of each fourth leg with 

 but one. Palpus of male with tibia enlarged as in related genera, its 

 dorsal distal margin extended only as a short wide plate or lobe which 

 may be angulate or toothed or not. Bulb characterized especially 

 by the presence of a median apophysis which is strongly pectinate on 

 ventral surface and especially along mesal edge, this apophysis lying 

 against the conductor and its marginal teeth protecting the embolus. 

 Epigynum in form of a strongly chitinized plate turned forward from 

 posterior border and presenting its free edge cephalad. 



1 Bull. Mus. Hist. \at.. 190S, p. 505. 



