60 FAUNA OP MAYFIELD'S CAVE. 



Found living outdoors in the immediate vicinity of the cave. T. 

 derhami is almost cosmopolitan in houses and cellars. This species 

 shows no signs of modification due to cave life, but is perfectly at home 

 about the mouth of the cave. 



Blatchley (1896, 202) found 2 specimens of another species of this 

 genus {Tegenaria cavicola Banks) in Saltpeter Cave. Relatives of 

 T. derhami which live in European caves are Chorizomma suhterranea 

 Simon, which has 6 transparent eyes, and Hadites tegenarioides Keyser- 

 ling, which is yellow in color and eyeless. 



Clcurlna pallida Keyserling. 



Keyserling, Neue Spinnen aus Amerika, vii; Verb, der zool-botan. Gesellsch., Wlen, 

 1887, 462 (42), pi. 6, fig. 26 (District of Columbia). Marx, Proc. U. S. Nat. 

 Mus., XII, 1889, 516. 



Four specimens of this species were found in Mayfield's, two near 

 the mouth on the wall, one at "11" on the wall, and the third under 

 a stone at "25." This species is somewhat dull in color and its front 

 middle eyes are slightly smaller than the others. It was also found 

 under a log outside Mayfield's Cave and in Truett's Cave. Its distri- 

 bution includes all Northeastern United States and Canada. 



Coelotes sp. 



An immature one taken in November at "12." Its color was dull, 

 but this may have been because it was immature. Its middle eyes in 

 both rows were somewhat smaller than the others. Keyserling (Packard, 

 1888, 58) has described Coelotes juvenilis from Kentucky caves. 



Family THERIDIIDAE. 



Therldlum kentuckyense Keyserling. 



Keyserling, Die Spinn. Am., Tberid., i, 78, fig. 47 (Kentucky, Pennsylvania). 

 Marx, Proc. U. S. Nat. Mus., xii, 1889, 519. 



This species is very abundant from the mouth back to "4" and is 

 occasionally found as far as "11." It has a small irregular web in a 

 depression or corner of the wall and feeds upon small flies caught in its 

 web. In color and in size of the eyes it appears about as is usual with 

 this family. Those taken into the laboratory sought the darkest part 

 of their place of confinement. An adult female kept alive in the labor- 

 atory spun a cocoon and laid eggs in it. The spider was misplaced and 

 forgotten for two months and when examined again the young had 

 hatched out, about 25 in number, and were dead in the bottle, while 

 the female had made another cocoon. The cocoon is a dull white, com- 

 pactly woven, somewhat flattened sphere, quite silky, 4.5 by 2.5 mm. 



