194 PROCEEDINGS OF THE ACADEMY OF [1888. 



on the edges and viewed from the front, the tip is somewhat hooded. 



(See fig. 2.) A broad central patch marks 

 the sternum, and the tongue and mandibles are 

 tipped with yellow. 



The cephalothorax is about 5 mm. long ; is 

 ratlier small as compared with the immense ab- 

 domen, and is marked with two broad yellowish 

 bands extending along the sides and broadening 

 over the dorsum. The head is a brownish color. 

 The legs are marked strongly with annuli. 



Ep. grmma. Epigynum Their rcspcctivc lengths are as follows : 1st 



lowerligure, view from apex; . £-jr) o "1 -01 o- oi 



upper figure, side view. pair, 2o mm.; id pair, 2r2o mm.; od pair, 

 14'75 mm.; 4th pair, 21"25 mm. The spider makes a large circular 

 web of the usual character of the group of Angulata, to which it 

 belongs, and rests in a nest of rolled leaves or dome shaped rubbish 

 placed on the upper side of its snare. The cocoon is a round flossy 

 ball of a darkish yellow color, about three-fourths of an inch in di- 

 ameter. A number of cocoons sent to me by Mrs. C. K. Smith from 

 San Diego, California, were found during the month of Ajiril to con- 

 tain well developed young spiders. These spiders are of a quite 

 uniform light yellow color, with a brown, well marked shield-shaped 

 figure upon the dorsum of the abdomen, which is without the conical 

 prominences that characterize the adult. Several of these cocoons 

 were hung in an arbor upon the 1st of May, and the spiderlings im- 

 mediately issued therefrom in great numbers, following the usual 

 habit of their kind to ascend for a considerable distance, and then 

 gather in small clumps or balls closely packed together.' It is no- 

 ticable that the spiders from the various cocoons mingled together 

 without any hostility, climbed together the various bridge lines 

 which immediately issued from the spinnerets, and snugged together 

 in balled groups under the leaves, as though they all belonged to one 

 brood. The month being cold and very rainy, they remained thus 

 clustered throughout the entire month, and were not fully dispersed 

 until the first week in June. 



Specimens received from Mrs. Rosa Smith Eigenmann, and Mr. 

 Charles R. Orcutt. 



Epeira bicentennana, n. sp. 



2. (Fig. ;>.) In the summer of 1882 I found in iiurtii-western 

 Ohio and in the Alleghany mountains of Pennsylvania, specimens 

 of a species apparently new, which I named Epeira hicentennaria. 



