THE FEATHERFOOT SPIDER, ULOBORUS PLUMIPES. 



173 



Hentz observed the species on limestone rocks on the banks of Cyprus 

 Creek, and in moist places in North Alabama. Its congener, U. mamme- 

 atus, he found dwelling most frequently in cavities, among large logs, and 

 in hollow trunks of trees. ^ Emerton found Plumipes between loose stones 

 or low bushes in New England. Mrs. Peckham almost invariably found 

 this species buildmg in dead branches, six out of seven being thus located. ^ 

 She gives an apt abstract of its habits. In form and color it resembles 

 a scrap of bark ; its body is truncated and diversified with small humps, 

 while its first legs are very uneven, bearing heavy fringes of hair on the 

 tibia, and having tlie terminal joints slender. Its color is a soft wood 





Flii. 160. Orbweb of Uloborus, spun in the opening of a hollow stump. 



brown or gray, mottled with white. It lias the habit of hanging motion- 

 less in the web for hours at a time, swaying in the wind like an inani- 

 mate object. The strands, of its web are rough and inelastic, so that they 

 are frequently broken, and this gives it the appearance of one of those 

 dilapidated and deserted webs in which bits of windblown rubbish are 

 freciuently entangled. 



Baron Walckenaer says that the closely related European species, Ulo- 

 borus Walckenaerius Duges, generally spins its horizontal snare between 

 the stems of rushes in dry and warm places, which resembles that of 

 Epeira in form, but of looser tissue.* Hahn found the species in the 



1 Phillyra mammeata. " Spiders of the United States," page 129. 



- " Protei'tive Resemblances in Spiders." Occasional Papers of the Natural History So- 

 ciety of Wisconsin, Vol. I., 1889, page 77. By George W. & Elizabeth G. Peckham. 

 ^ Apteres (Suites a Buifon), Vol. II., page 229. 



