1941] 
Spider Fauna of Neiv England 
131 
the first issue of its “Fauna of New England”; the ninth in 
the series, entitled “A List of the Aranea” appeared in April 
1908. This listed 399 species. At the present time, 612 
species have been reported, an increase of over 50%. Of 
these, Emerton has described 214 species, or over one third. 
Since a comparison of the faunal lists of regions of simi- 
larly intensive study may have some interest, the following 
tabulation is included. 
Approx area 
(in sq. miles) 
Species 
Authority 
Year 
New England 
65,000 
612 
Bryant 
1941 
New York 
49,000 
551 
Crosby & Bishop 
1928 
Great Britain 
89,000 
556 
Bristowe 
1939 
Possibly rather more than 10% of the spider fauna of 
New England is common to Europe. A number of species 
seemingly introduced by commerce have been established; 
such are Theridion tepidariorum C. Koch; Scytodes thora- 
cica Latreille; and Pholcus phalcmgioides (Fuesslin.), all 
common house spiders. Others, probably circumpolar, are 
found across the continent but do not extend very far south. 
Of these we may mention Cyclosa conica (Pallas), Aranea 
angulata Linn., Salticus senicus (Linn.), Zelotes subterra- 
neous (C. Koch). Of especial interest, is the discovery of 
Cercidia prominens (Westring), a northern Eurasian 
species, in a cold swamp in Holliston, Massachusetts, a 
locality from which several insects peculiar to the far north 
have been taken. This species also occurs in northern New 
England. 
The following includes a description of one new species, 
two new names, a description of a European species new to 
New England, and new records of localities and a few 
corrections. 
Family Oecobiid^ 
Genus Tapinesthis Simon 1914. 
Tapinesthis inermis (Simon) 
Oonops inermis Simon, Ann. Soc. Ent. France, 1882, (6), 
2: 240. 
Orchestina saltitans Emerton, nec Banks, Trans. Conn. 
Acad., 1909, 14 : 214, pi. 1, fig. 4. 
