142 ■ Psyche [August 



Semicrocea Cockerell 1895, Las Cruces, New Mexico (Cocker- 

 ell). Tab. 1, 2, 4, 5. Visits Compositce. 



Senecionis Cockerell 1896. Las Cruces, New Mexico {E. 0. 

 Wootou). Tab. 1, 2. Visits Senecio in October. 



Sexmaculata Cockerell 1895. Santa F^, New Mexico (Cocker- 

 ell). Tab. 1, 2, 4. Visits Chamcesaracha. 



For figure of mouth-parts, see Annals and Mag. of Nat. His- 

 tory, December, 1899, p. 416. 



Sidae Cockerell 1897. Mesilla, New Mexico (Cockerell). Tab. 2, 

 4, 5. Visits Sida hederacea. 



Snowii Cockerell 1896. Estes Park, Colorado (F. H. Snoiv). 

 Tab. 1. Also at Santa Fe, New Mexico. Male; Psyche, 

 1910, p. 244. Visits Grindelia. 



Solitaria Cockerell 1897. Soledad Canon, Organ Mts., New 

 Mexico (Townsend). Tab. 2. Visits Pectis. 



Sonorensis Cockerell 1899. S. Jose de Guaymas, Mexico (How- 

 ard). Flies in April. 



Sparsa Fox 1893. Margarita Island, Lower California (Haines). 

 Tab. 1. Allied to P. alhipennis, but flies in March. 



Sphaeralceae Cockerell 1896. Las Cruces, New Mexico (Cock- 

 erell). Tab. 1,2,4. Visits Sphwralcea. barely at Nuttallia; 

 cf. Jour. N. Y. Ent. Soc, 1896, p. 206. 



Sphaeralceae alticola Cockerell 1896. Santa Fe, New Mexico 

 (Cockerell). Visits SpJurralcea. 



Sphaeralceae suffusa Cockerell 1896. Santa Fe, New Mexico 

 (Cockerell) . A variant of alticola. 



Stottleri Cockerell 1896. Tularosa Creek, New Mexico (Cocker- 

 ell). Tab. 2. Visits Chrysoihamnus and Gutierrezia. Male; 

 Entomologist, 1904, p. 6. 



Stottleri flavida Swenk and Cockerell 1907. Glen, Nebraska 

 (Bruner). Visits Gutierrezia and Solidago. 



Subfasciata Cockerell 1897. Embudo, New Mexico, September 

 25 (Cockerell). Tab. 2. Visits Chrysothamnus. 



Tarda Cockerell 1896. Las Cruces, New Mexico (Cockerell). 

 Tab. 1, 2. Visits Gutierrezia. 



Texana Cresson 1878. Texas (Heilighrodt). Tab. 1. 



Tortifoliae Cockerell 1906. Florissant, Colorado (Cockerell). 

 Visits Chrysothamnus. Possibly a mutation of florissantella; 

 cf. Entom., 1907, p. 267. 



