Biological Papers. 121 



ADDITIONS TO THE LIST OF KANSAS ARACHNIDA. 



By Theo. H. Scheffer, Manhattan. 



TN his "Preliminary List of Kansas Spiders," published in vol. 

 -^ ume XIX of the Transactions of the Kansas Academy of Science, 

 the writer recorded 100 species taken within the borders of the 

 state, and expressed the desire to double the list in another season's 

 collecting. But forty-three additional species of spiders have been 

 taken, up to date, however. These are listed in the present paper, 

 together with a preliminary report on other groups of the Aracli- 

 nida represented in our state. 



Four species of spiders new to science are described and figured 

 in this paper. Several other single specimens probably represent 

 new species, but it is not the policy of the writer to describe from 

 a single specimen. To merit description, a supposedly new type 

 should be fairly well represented in some locality. 



The forty-three species herein listed represent eleven families 

 and twenty-nine genera. Three of the families and seventeen of 

 the genera were not included in the first list. All summed up, 

 then,, we have recorded from Kansas 143 species of spiders, repre- 

 senting 16 families and 67 genera. 



The illustrations for this paper were by Miss Ella Weeks. 



Types of the new species are in the Kansas Agricultural Col- 

 lege collection and in the National Museum, at Washington. 



Order ARANEIDA. 

 Family Atypid^. 



Brachybothrum robustum Simon. 



Brachybothrum robustum Simon. Actes Soc. Linn. Bord. , vol. 44, p. 7. 

 Two males from Manhattan, April 5, and an immature female from 

 Delphos, August 5. 



Family Uloborid^. 

 Uloborus plumipes Lucas. 



Uloborus plumipes Lucas. Explor. d'Algerie Anim., art. I, p. 252. 



Two females taken in webs with cocoons at Manhattan, July 14. Im- 

 mature male from St. George, June 6. 

 Hyptiotes cavatus Hentz. 



Cyllopodia cavata Hentz. Jour. Bost. Soc. Nat. Hist., V, 1845, p. 466. 

 The Triangle spider is apparently rare in Kansas. A single specimen 

 was found at Three-Mile Hill, near Manhattan, October 10. 



