ECOLOGY OP ISLE ROYALE. 257 



Geographic Range. Colorado, Banks, '95, p. 429. Mt. Washington, 

 N. H. On mosses and licliens (Emerton). 



Pardosa lapidicina Emer. This was also a beach spider (I, 1) (G. 

 25, 38 (2)). The cocoons are very large in proportion to the size of 

 the female and are flattened. Emerton, '02, p. 78. Lives among stones 

 (Emerton). 



Geographic Range. Gaspe, Quebec; Massachusetts; Connecticut; 

 Pennsylvania. Emerton, '02, p. 79, states that this species "lives 

 among stones in the hottest and dryest places from Connecticut to 

 Labrador." Marx, '90, p. 565; Stone', '90, p. 431. 



Pardosa tachypoda Thor. Found running over the bare rocks on the 

 top of the jack pine ridge (I, 5), and carrying cocoons (A. 21). Emer- 

 ton, '02, p. 81. 



Geographic Range. I^abrador ; Mt. Washington, N. H. ; Adirondack 

 Mts., N. Y.; Manitou, Colo. Emerton, '85, p. 493, and '94, p. 401. 



8a Itioida e — -A ttidae. 



Phiddippus horeaUs Bks. One specimen of this jumping spider was 

 found under loose stones on moist earth on the jack pine ridge (I, 5). 



Geographic Range. New Hampshire, Banks, '95, p. 96, Slosson,' '98, 

 p. 249; Maine; New York, Banks (in letter). 



Habitat Preferences. Eeviewing the preceding list of mites and 

 spiders the following habitat preferences appear to be indicated : 



I. Beach, rocky, bouldery or sandy. 



Lycosa pratensis (also diy openings). 



Lycos a kochi. 



Pardosa groenlandica. 



Pardosa sternalis (also dry openings). 



Pardosa lapidicina. 



Pardosa glacialis (also in sphagnum bogs). 



II. Dry openings, rock or shallow soil, heath-junipei' — Cladonia j)lant 

 society represented by I, 5; V, 2. 



Rhyncolophus simplex. 



Lacinius ohioensis (in swamp also). 



Gnaphosa hruinalis. 



Drassus neglectus (in swamp also) . 



Coeletes sp. 



Ciciirina arcuata. 



Lycosa pratensis. 



Lycosa kochi (also beach). 



Pardosa sternalis (on beach also). 



Pardosa tachypoda. 



Pardosa glacialis. 



Phidippus borealis. 



III. Wet places — as sphagnum swamps. 

 Epeira patagiata (cassandra zone). 

 Pardosa glacialis (also di-y openings). 

 Drassus neglectus (also dry openings). 

 Lucinus ohioensis (also drj' openings). 



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