83 

 Genus Clubiona. Latr. 



Characters. Cheliceres long, fang moderately long; maxilla} 

 parallel, ivider above the insertion of the palpi, lip widest in the 

 middle; eyes eight, equal, in two roivs, the lower one nearly 

 straight ; feet, the fourth or the first pair longest ; body usually 

 of a pale or livid color. 



Habits. Araneides sedentary, watching their prey, and in- 

 closing themselves in silk tubes ; cocoon orbicular. 



Remarks. This sub-genus, like Thomisus, cannot be char- 

 acterized with any precision, owing to the variations in the 

 form of the tropin, the position of the eyes, etc. It is never- 

 theless a natural subdivision of Aranea. The species compos- 

 ing it have nocturnal habits ; little therefore, is known of their 

 'history. They dwell under leaves, under bark or stones, 

 where they may be found in silk tubes, from which they sel- 

 dom issue during the day. 



Tribe I. Dryades. Eyes, posterior row bent toward the 

 base ; fourth pair of legs longest, then the second. 



1. Clubiona pallens. 

 PI. 10, fig. 13. 



Description. Livid white ; abdomen varied with plumbeous 

 [450] spots above, and four small dots near the apex under- 

 neath ; feet, 4. "A. 1. 3. Both sexes alike. 



Observations. This spider is found in silk tubes, concealed 

 under the bark of decaying trees, where it spends the winter. 

 There is a spotless variety which may prove a distinct species. 



Habitat. North Carolina, Alabama ; common. 



[PI. 18, fig. 7, eyes. The second pair of legs is always 

 sensibly longer than the first. Taken December 15. Supple- 

 ment.] 



[9, length 6.8 mm.; ccplialothorax 3.2 mm. ; legs 6.7, 7, 6, 9. 

 <? " 6 mm.; " 3 mm.; " 7, 7.4, 6, 8.6. 



Palpus of 6. PI. 20, fig. 13. 



