352 ARACHNIDA—ARANEAE CHAP. 
complexity in the nature of the silk used. It is interesting, 
however, to find that viscid globules, not unlike those which stud 
the ‘spiral line” of the Epeiridae, are sometimes present in the 
snares of the Line-weavers,’ and in these, too, aggregate glands are 
present. There is a large spider of this family, Theridion tepid- 
ariorum, Which may be found to a certainty in almost any hot- 
house in this country. In its snare, which is of the ordinary 
irregular type, F. Pickard-Cambridge has observed little patches 
of flocculent. silk, caleulated to render more certain the entangle- 
ment of prey, and he has further described a curious comb-lke 
structure on the hind leg of the animal which is probably used 
in the production of this phenomenon. It is by no means unlikely 
that a more careful study of these apparently simple snares will 
lead to the discovery of further complexity of structure. 
Uloborus, a eribellate genus which has an Epeirid-like, 
orbicular snare, decorates some of the lines with the produce 
of the cribellate glands, 
but viscid globules are 
absent. 
Sheet - Webs. — The 
webs which are such 
famihar—and, by asso- 
ciation, unpleasant — 
objects in unused rooms 
Fic. 193.—Snare of Uloborus sp., some of the lines and outhouses are usu- 
being thickened with threads from the cribellum. ally the work of spiders 
(After M‘Cook.) Cs 
belonging to the Agelen- 
idae and the Dictynidae. To the first belongs the common 
House-spider, Yegenaria civilis, and its larger congener, 7’ 
parietina. These spiders are not attractive in appearance, and 
the last-named species especially, with the four-inch span of 
its outstretched legs, is a formidable object, and a terror to 
domestic servants. An obscure tradition connecting it with 
Cardinal Wolsey and Hampton Court has caused it to be known 
as the Cardinal Spider. An out-door example of the Agelenidae 
is the very abundant Agelena labyrinthica, whose sheet-web, with 
its tubular retreat, is to be sought on the banks of ditches, or in 
the hedges of our country lanes. 
' M‘Cook, American Spiders and their Spinning Work, 1., 1889, p. 351; F. O 
Pickard-Cambridge, J. Micr. and Nat. Sci. July 1890. 
