no C. W. STEVENSON. 



time allowing her body to touch the cocoon. Occasionally, she 



would change her position or take short rests. At first the 



threads were loosely woven, but at the latter part of the process 



they were closely woven. The weaving of the cover lasted 



from 3:19 P. M. to 3:56 P. M. Then by raising her spinnerets 



and swinging them from side to side above the cover, she built 



a kind of outside cover or what seemed later to be a suspensor 



above the cocoon. This lasted until 4:12 P. M. when she began 



biting the old connection with the web, leaving it suspended at 



four corners and by means of the suspensor she had just made. 



At 5:30 she quit operations, and left the cocoon suspended. 



The finished cocoon is somewhat hemispherical beneath, the 



base, while the cover is a flat disc. From this observation, and 



from observing others kept in cages, and also those found in 



natural conditions, the cocoon seems to be spun upon a part of 



the web. In the natural conditions, it is suspended from the 



under side of the web at about the central portion. 



Here, it is seen that the cocoon of Evagnis consists of two 



parts, the base and cover. This goes to uphold the observations 



of Montgomery (1903), as pointed out by him for several genera, 



that the cocoons of all spiders are made of two parts, the base 



and the cover. 



LITERATURE LIST. 

 Apstein, C. 



'89 Bau und Function der Spinndriisen der Araneida. Inaugural Dissertation. 

 Berlin. 



Borgert, H. 



'91 Die Hautdriisen der Tracheaten. Dissertation, Jena. 



Jaworowski, A. 



'95 Die Entwickelung des Spinnapparates bei Trochosa signoriensis Laxm. mit 

 Beriichtsichtigung der Abdominalanhange und der Fliigel bei den Insekten. 

 Jena. Zeit. Naturw. , 30. 



McCook, H. C. 



'90 American Spiders and their Spinning Work. Philadelphia. 



Montgomery, Thos. H. 



'03 Studies on the Habits of Spiders, particularly those of the INIating Period. 

 Proc. Acad. N. Sc, Vol. 55. 



Simon, E. 



'92 Histoire Naturelle des Araignees. 2d ed., Tome I., Paris. 



Warburton, C. 



'go The Spinning Apparatus of Geometric Spiders. Q. Journ. Micr. Sc. (2), 

 Vol. 31. 



