151 



Observations. This makes a web like Th. blandum*. 

 Habitat. Alabama. September. 



20. Theridion sphgerula. 

 PI. 16, fig. 22. 



Description. Yellow ; cephalothorax with a black band, or 

 wholly black ; abdomen subtriangular, orange, with a yellow 

 spot on the disk ; one spot at each external angle, and region 

 of the nipples black ; sometimes it is black or deep rufous 

 above and beneath, except the yellow spot on the disk, and two 

 little yellow dots near the base ; feet pale yellow, 1. 2. 4. 3. A 

 very small species. 



Observations. This very variable species is nevertheless 

 readily recognized by the shape of its abdomen. It is common, 

 and makes an orbicular white cocoon placed in its web. 



Habitat. Alabama. May-September. 



[? 2.8 mm. long ; d 2 mm. long. 

 PI. 21, figs. 17, 17a, palpus of d. 



Holyoke, Mass., July 4, d and ? ; Peabody, Mass., June, d and 9 ; 

 Washington, D. C. E. P. Austin, j. h. e.] 



21. Theridion globosum. 

 PI. 16, fig. 23. 



Description. Black ; abdomen truncated behind, truncated 

 area whitish, with an obscure spot, and obsolete marks ; feet 

 1. 4. 2. 3. A very small species. 



Observations. This very distinct little Theridion was found 

 in its web on the stump of a tree. Its cocoons, quite numerous, 

 were of a pale cream color, tapering at both ends equally. 

 Young spiders were issuing from one of them. Specimens, 

 evidently of the same species, were found in June, [280] 

 which were yellowish where this is black ; otherwise agreeing 

 with this in form and marking. 



Habitat. Alabama. August. 



[PI. 19, fig. 125, cocoons. The spider was found under bark 

 or stones. Supplement.] 



