402 J. H. Emerton — Canadian Spiders. 



lection of spiders made in Canada by Prof. Potter, and in 1871, in 

 the same magazine, a smaller collection by Miss Hunter, from Mon- 

 treal. O. P. Cambridge described some Arctic spiders in the Ann. 

 and Mag. for ISTY, and some from Newfoundland in the Proceed- 

 ings of the Royal Physical Soc. of Edinburgh, 1881. The spiders 

 collected by A. S. Packard on the coast of Labrador, in 1864, were 

 described by Thorell, in Proc. Boston Soc. of Nat. Hist., 1875. 



The following publications are often referred to : 



J. H. Emerton, New England Spiders, in the Transactions of the 

 Connecticut Academy of Arts and Sciences, Vols. 6, 7, and 8 : — 

 Therididae, 1882 ; Epeiridge, 1884 ; Lycosidae, 1885 ; Ciniflonidae, 

 1888 ; Drassidae, Agalenidae, and Dysderidae, 1890 ; Attidae, 1891 ; 

 Thomisidae, 1892. 



N. M. Hentz, Araneides of the United States, in Journal of the 

 Boston Soc. of Natural History, vols. 4, 5, and 6 ; and reprinted 

 with notes and additions in Occasional Papers of the same Society, 

 in 1875. 



G. W. and E. G. Peckham, North American Attidae. Trans. Wis- 

 consin Acad, of Sciences, Arts, and Letters, Milwaukee, 1888. 



E. Keyserling, papers on American Spiders in Verhandlungen der 

 k. k. zool. botan. Gesellschaft, Wien, 18G3 to 1887. 



E. Keyserling, Die Spinnen Americas, vol. 1, Laterigradae, 1880 ; 

 vol. 2, Theridiidae, Part 1, 1884; Part 2, 1886. 



T. Thorell, Spiders from Labrador collected by A. S, Packard, 

 Proc. Boston Soc. of Nat. Hist., 1875. 



T. Thorell, Araneae collected in 1875 by A. S. Packard, Bulletin 

 of Hayden's U. S. Geological Survey, vol. 3, 1877. 



T. Thorell, Notice of the Spiders of the " Polaris " Arctic Expe- 

 dition, American Naturalist, June, 1878. 



Epeira nigra, new sp. 



This species resembles closely M silvatica, epecially the females. 

 The males, besides being much darker than silvatica are larger, the 

 cephalothorax being a fourth longer, while the legs are of the same 

 length as those of silvatica, but much stouter and with longer 

 spines. The abdomen of both sexes is covered with scattered light 

 hairs ; as in silvatica, but owing to the darker color they show 

 more plainly. 



In both sexes the general color is dark gray, almost as dark as 

 JS. carbonaria. The cephalothorax is covered with light gray hairs, 

 very short in the male and long in the female. The light hairs on 



