■264 Wisconsin Academy of Sciences^ Arts and Letters. 



tone, Hadrosoma and Therosa; and Cambridge formed the 

 genus Mago. This latter author, who has described a large 

 number of species, has, with a few exceptions, included 

 them all in the genus Salticus Latr. 



In 1883, Keyserling formed the genera Lauharulla, Scy- 

 thropa and Sandalodes, and substituted the names Pirithous, 

 Sinnamora, and Drepanephora for Eulabes, Tanypus, and 

 Acmaea. 



In 1884 Simon formed the genera Mithion, Lystrocteisa 

 and Chalcolecta, 



Finding that several generic names now in use are preoc- 

 cupied we make the following substitutions: 



For Evenus Simon 1877, " Epeus." (Evenus Hiibu. Lep. 

 1816, Agassiz' ISTomencl. Zool. Evenus Lap, Col. 1836, 

 Agassiz' Nomencl. Zool.) 



For Sinis Thorell 1878, "Linus." (Sinis Heer. Col, 1862. 

 Scudder's ISTomencl, Zool.) 



For Scirtetes L. K. 1879, " Damoetas." (Scirtetes Wagn. 

 Mamm. 1841, Agassiz' Nomencl, Zool.) 



For Ephippus Thorell 1881, "Zenodoras." (Ephippus Cuv. 

 Pise. 1829. Agassiz' Nomencl. Zool.) 



For Erasmia Keyserling 1882, "lona." (Erasmia Hope. 

 Lep. 1840, Agassiz' !N'omencl, Zool. Erasmia Heine. Aves 

 1863. Scudder's Nomencl. Zool.) 



For Atrytone Keyserling 1882, " Tara." (Atrytone Scud. 

 Lep. 1872. Zool. Record.) 



For Hadrosoma Keyserling 1882, " Bootes." (Hadrosoma 

 Fieb. Orth. 1853. Scudder's ISTomencl. Zool.) 



For Scythropa Keyserling 1883, "Bianor." (Scythropa 

 Chand. Col. 1871. Zool. Record.) 



For Drepanephora Keyserling 1883, " Hypoblemum." 

 (Drepanephora Loew. Dipt. 1869. Zool. Record.) 



We divide the family Attidae into two sub-families, the 

 Attinae, having the eyes in three rows, and the Lysomanae, 

 having the eyes in four rows. 



