New England Spiders Identified since 1910. 217 



M. denticulata. The male palpi are short, the patella and tibia each 

 as wide as long, and without processes. The tarsus is rounded and 

 does not show the usual spur at the base. The tarsal hook is short 

 and stout and curved in a half circle, ending in a point. A sharp 

 ridge extends along the outer side of the hook about half way from 

 the base, and then follows the middle hne of the point. On the outer 

 side of the hook where it begins to narrow toward the point is a small 

 tooth. Figs. 4, 4 a. PI. IL 



One male from Mt. Moosilauke at a height of 2000 ft. under leaves, 

 May 29, 1912. 



Microneta reetangulata. new 



2 mm. long, light orange brown with dark gray abdomen. The 

 mandibles are thickened at the base as in M. viaria, and narrow 

 at the tip with a small tooth on the front just below the thickened 

 part. The palpi have the tarsus comparatively narrow with a very 

 small spur at the base. The tarsal hook is bent at a right angle, 

 the outer portion thickened at the corner, but ending in a thin, wide 

 tip. Figs. 5, 5 a, 5 b. PI. IL 



Readville, Mass., on a fence in the autumn flight, Nov. 5, 1911. 



Bathyphantes duplicatus. new 



3 mm. long. Cephalothorax and legs dull yellow without any 

 definite markings except incomplete rings on the ends and middle of 

 the joints of the legs. The abdomen is dark, nearly covered by trans- 

 verse gray marks united in the middle over the front half. The 

 male palpi have the tarsus longer than wide and as seen from above, 

 narrow at the base where are two processes, one short and round on 

 the outer side, and a longer and more slender one on the inner side. 

 The tarsal hook is large and complicated and curved in a half circle. 

 At its base it is narrow and has a row of stiff hairs and nearest the 

 end of the tibia is a wide short irregular tooth. The more solid part 

 of the end of the hook is widened and irregularly forked and under 

 it is a thinner and translucent branch which extends in an irregular 

 point beyond the forked end. Figs. 6, 6 a, 6 b. PI. II. The Mt. 

 Washington specimen has all the processes of the tarsus and tarsal 

 hook smaller than the one from Katahdin. 



Mt. Katahdin, Me., 2000 ft., July 6, 1910. Mt. Washington^ on 

 the Raymond path, Aug. 2, 1912. 



