JOURNAL 



OK III I 



J}f\n 2orh 6!ntoniDlogirfll HoriFtg. 



Vol. II. JUNE, 1894. Ko. 2. 



ON THE LYCOSIDJE OF COLORADO. 



By Nathan- Uanks. 



In 1877 Dr. r. 'I'horell described in the I5ul!. U. S. Geol. 

 Survey, leii new species of Lycosid;u from Colorado. They were 

 chiefly collected in the central and northern portions of the state. 

 Since then no other species have been recorded from the state. 

 During the past few years, 1 have received several collections of 

 spiders from Colorado ; principally from Dr. C. F. Baker, Mr. T. D. 

 A. Cockerell, and Prof. C. P. Gillette. From these 1 have been 

 enabled to determine several of Dr. Thorell's species and to 

 recognize some new forms. A mountainous region is especially 

 rich in Lycosida;, so that from more extended collecting we may 

 expect many more forms. 



Lvcosa, Thorell is what AniL-rican students know as FarJoso ; 

 Tarfiitiila^ Thorell is our Lycosa. Thorell, is the paper cpioted, 

 tpiestioneil whether Latreille had ever considered Lvccsa tareiititla 

 as the type of the genus. I.alreille, in his "Ordre Xalurel des 

 Crustaces", distinctly gives /,. lar, ntttla as the type. 



Lycosa grandis, sj). nov. 



Leno-lU 22 mm.; ceph. 11 mm. Ceplialotliorax biowii, with a nanow j);ilc 

 yellow stripe in the middle, reaching to eyes of second row; a broad yellow stripe 

 each side on the margins; mandibles brown with long while hairs: ma.\illa' and lip 

 dark brown ; sternum, coxre and legs pale yellowish, witliont spots or maiks ; the 

 tarsi and tips of metatarsi brownish ; abdomen brownish above, showing a basal 

 spear-mark and a few small spots, sides and venter wholly pale yellow ; spinnerets 

 brownish. Anterior row of eyes procurved, shorter than the second row, which 

 are less than their diameter apart. Legs large and stout, IV pair about three times 

 as long as the cephalothora.\. The tibia of the male palpus is about twice as long 

 as broad; the hook short and blunt, the tube long and slender. 



One male Fort Collins, Colorado (Baker).- This species is 

 readily recognized by its large size and pale color. 



