“—— ar. 
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.1_ Emerton found Plumipes between loose stones 
or low bushes in New England. Mrs. Peckham almost invariably found 
this species building 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 the terminal joints slender. Its color is a soft wood 
Fic. 160. Orbweb of Uloborus, spun in the opening of a hollow stump. 
brown or gray, mottled with white. It has 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 
frequently entangled. 
Baron Walckenaer says that the closely related European species, Ulo- 
borus Walckenaerius Dugés, 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.2 Hahn found the species in the 
1 Phillyra mammeata. “Spiders of the United States,’ page 129. 
2 “Protective Resemblances in Spiders.” Occasional Papers of the Natural History So- 
ciety of Wisconsin, Vol. I., 1889, page 77. By George W. & Elizabeth G. Peckham. 
8 Aptéres (Suites 4 Buffon), Vol. IT, page 229. 
