NO. 1852. BEES OF THE OENUS NOMADA—COCKERELL. 229 



electella Cockerell, 1903. Georgia. 



Anterior coxae of female spined. 

 *elegantula Cockerell, 1903. Los Angeles County, California. Tab. 4. 

 Also occurs at Lewiston, Idaho. 

 Type.— Cat. No. 13180, U.S.N.M. 

 elrodi Cockerell, 1903. Montana. Tab. 1, 5. 



Also in Nebraska. 

 erigeronis Robertson, 1897. Illinois (Robertson). Tab. 7, 10, 12. 



West to Nebraska. See Proc. Acad. Nat. Sci. Phila., 1903, p. 588. 

 *€rythrsea Dalla Torre, 1896. Tab. 4. 

 *erythrochroa Cockerell, 1903. Pasco, Washington, May 25 (Kincaid). 



An orange-ferruginous species. 



Type.— Cat. No. 13165, U.S.N.M. 

 *excellens Cockerell, 1903. S. California. Tab. 4. 



Variety from Nevada; Proc. Acad. Nat. Sci. Phila., 1903, p. 588. 

 excurrens Cockerell, 1903. Southern California. Tab. 4. 



Very close to N. hemphilli. 

 fervida Smith, 1854. "St. John's Bluff, East Florida; Georgia (E. Doubleday)." 



Notes on type; Trans. Amer. Ent. Soc, vol. 31, p. 310. 

 /estiva Cresson, 1863. New Jersey. 



Resembles N. modesta; abdomen with yellow bands. 

 fiammigera Cockerell, 1906. North Yakima, Washington, May 15 (E. Jenne). 



Female with head and thorax red, with black markings and no yellow; abdomen 

 with a round cream-colored spot on each side of second segment; mandibles 

 simple. 

 flaviceps Cresson, 1865. Cuba (Gundlach). 

 flavipes Provancher, 1888. Los Angeles, California. 



Appears to be near N. formula, 

 fiorilega Lovell and Cockerell, 1905. 



Female about 8 mm.; allied to N. sayi, but larger and darker, the metathorax 

 entirely black. 



Visits Aralia and Spirsea. 

 fontis Cockerell, 1910. Steamboat Springs, Colorado (Cockerell). Subg. Nomada 



s. str. 

 *formula Viereck, 1903. San Pedro, California (Cockerell). Tab. 4, 8, 10. 



Male; Cockerell, Proc. U. S. Nat. Mus., vol. 39, 1911, p. 658. 

 fowleri Cockerell, 1903. Corvallis, Oregon, April 15 (Cordley). 



Female black and ferruginous; the only yellow about the insect is a small patch at 

 extreme lower corners of face. 

 fragilis Cresson, 1878. Colorado (Ridings, Morrison). Tab. 1, 8, 11. 

 *frieseana Cockerell, 1904. Prospect Lake, Colorado Springs, Colorado, May 22 

 (T. and W. Cockerell). 



Resembles N. rubicunda. 

 *garciana Cockerell, 1907. Mesilla Park, New Mexico, May 1 (Cockerell). 



Possibly a subspecies of N. snowi. 

 gibbosa Viereck, 1905. Oregon. 



Thorax almost entirely black, including scutellum; abdomen with yellow spots; a 

 little yellow at lower corners of face. 

 gillettei Cockerell, 1905. Golden, Colorado, July 3 (Gillette). Tab. 1. 

 ^gracilis Cresson, 1863. Massachusetts. 



Notes on type; Entomologist, 1907, p. 98. 

 grsenicheri Cockerell, 1905. 



A Xanthidium looking like N. modesta; visits Helianthus in August. 

 grandis Cresson, 1875. Colorado (H. C. Yarrow). Tab. 1. 



