NO. 1852. BEES OF THE GENUS NOMADA—COCKERELL. 233 



pTOi'anc/im D ALL A Torre, 1896. 

 proxima Cresson, 1863. Maine. 



Allied to N. vicina. 

 pseudops CocKERELL, 1905. Milwaukee, Wisconsin (Graenicher). 



Female about 9 mm.; red, with black and yellow markings. Looks much like 

 N. coloradcnsis. 

 pulchella Smith, 1854. "North America." 

 *pulsatillie Cockerell, 1906. Boulder, Colorado, April 20 (Cockerell). Tab. 11. 



Female r§d and black, with no yellow anywhere. 

 punctata^ provancheri Dalla Torre. 



A Canadian species has been cited as punctata Fabricius, but there is no species of 

 this name described by Fabricius; N. punctata Lepeletier is Algerian. Provan- 

 cher says the scutellum has a spine on each side. Dalla Torre renames this 

 provanchcri. 

 putnami Cresson, 1876. Spring Lake, Utah (J. D. Putnam). Tab. 10. 

 *pygmse.a Cresson, 1863. Connecticut. 



Male with clypeus, a spot above it, labrum, mandibles, and face narrowly on each 

 side of clypeus, yellow; orbits ferruginous. Viereck exammed Cresson's type 

 and found mandibles simple. 

 rhodalis Cockerell, 1903. Nevada. Tab. 9. 



rhodomelas Cockerell, 1903. Corvallis, Oregon (Cordley). Tab. 9. 

 *rhodosoma Cockerell, 1903. Santa Cruz Mountains, California. Tab. 4. 



Close to N. erythrsea. * 



Type.—C9it. No. 13167, U.S.N.M. 

 *rhodosoma rhodosomella Cockerell, 1903. Colorado (Morrison). 



Type.— Cat. No. 13161, U.S.N.M. 

 rhodotricha Cockerell, 1903. S. California. Tab. 4. 



Thorax with bright ferruginous hair. 

 rhodoxantha Cockerell, 1905. Colorado. 

 ridingsii Cresson, 1878. Colorado (J. Ridings). Tab. 1, 10. 



Allied to N. putnami. 

 *nvalis Cresson, 1878. California (H. Edwards, Behrens). Tab. 5. 



For characters see Cockerell, Proc. U. S. Nat. Mus., vol. 39, 1911, p. 651. 

 rohertsonella Cockerell, 1903. Nevada. 



Resembles N. erythrxa. 

 *rohwen Cockerell, 1906. Near Lake George, Colorado, June 18 (Rohwer). 



Allied to N. snowi. 

 rubicunda Oliver, 1811. Carolina. Tab. 10. 

 rubra Provancher, 1888. Los Angeles, California. 



Name preoccupied; =erythrxa. 

 ruhrella Cockerell, 1905. Fort Collins, Colorado (Mrs. Laura Titus). Tab. 1. 



Subgenus Gnathias. 

 *rubrica Provancher, 1896. Los Angeles, California (Coquillett). Tab. 4. 



Vai-iety: Proc. Acad. Nat. Sci. Phila., 1903, p. 570. 

 *ruficornis Linne^us, 1758. Europe. 



Supposed ruficornis in Maryland; Proc. Acad. Nat. Sci. Phila., 1903, p. 614. 

 *ruidosensis Cockerell, 1903. Ruidoso Creek, New Mexico (Wooton). Tab. 1. 



Variation: Bull. Amer. Mus. Nat. Hist., vol. 22 (1906), p. 438. Also in Colorado. 



Type.— Cat. No. 13175, U.S.N.M. 

 salicis Robertson, 1900. Illinois (Robertson) Tab. 2, 12. 

 *sanctsea-uds Cockerell, 1903. Santa Cruz Mountains, California. Tab. 4, 5. 



Type.— Cat. No. 13179, U.S.N.M. 

 *sayi Robertson, 1893. Illinois. Tab. 1, 12. 



New description: Canad. Ent., 1900, p. 293. 



Distribution: Proc. Acad. Nat. Sci. Phila., 1903, p. 605. 



