Superfamily APOIDEA 2103 



Genus NOMADA Subgenus GNATHIAS Robertson 



Gnathias Robertson, 1903. Canad. Ent. 35: 173. 



Type-species: Nornada bella Cresson. Orig. desig. 



Taxonomy: Cockerell, 1903. Acad. Nat. Sci. Phila., Proc. 55: 594-603. — Viereck et al., 1905. 

 Canad. Ent. 37: 282-283. -Swenk, 1913. Nebr. Univ., Studies 12: 11-15, 90-99. -Swenk, 

 1915. Nebr. Univ., Studies 15: 172-179. -Mitchell, 1962. N. C. Agr. Expt. Sta. Tech. Bui. 

 152: 346-354, fig. 98 (eastern U. S. spp.). 

 bella bella Cresson. Minn, to Que. and Maine, south to Fla. 



Noynada bella Cresson, 1863. Ent. Soc. Phila., Proc. 2: 287. S. 



Nomada albofasciata Smith, 1879. Descr. New Species Hym. Brit. Mus., p. 100. 6. 



Morphology: Snodgrass, 1941. Smithsn. Misc. Coll. 99: 55-56, pi. 27, figs. F-J. 

 bella callura Cockerell. Colo. 



Nomada (Gnathias) bella callura Cockerell, 1911. U. S. Natl. Mus., Proc. 39: 657. 6. 

 clarescens Cockerell. Colo. 



Nomada (Gnathias) clarescens Cockerell, 1921. Amer. Mus. Novitates 24: 10. 9. 

 cuneata (Robertson). Minn, to N. S., south t,o N. C. 



Gnathias cuneatus Robertson, 1903. Canad. Ent. 35: 175. 9, c5 ? 



Gnathias cuneatus form decemnotatus Robertson, 1903. Canad. Ent. 35: 175. 9. 



Gnathias cuneatus form octonotatus Robertson, 1903. Canad. Ent. 35: 175. 9. 



Gyiathias cuneatus form sexnotatus Robertson, 1903. Canad. Ent. 35: 176. 9. 



Gnathias cuneatus form quadrisignatus Robertson, 1903. Canad. Ent. 35: 176. 9. 

 custeriana Cockerell. Colo. 



Nomada (Gnathias) custeriana Cockerell, 1911. U. S. Natl. Mus., Proc. 41: 241. S. 

 debilis Timberlake. Calif. 



Nomada (Gnathias) debilis Timberlake, 1954. Pan-Pacific Ent. 30: 135. 9, tj. 



Nomada (Gyiathias) debilis var. a Timberlake, 1954. Pan-Pacific Ent. 30: 136. 9. 

 fuscicincta Swenk. N. Dak. 



Nomada (Gnathias) fuscicincta Swenk, 1915. Nebr. Univ., Studies 15: 24. 9, 6. 

 grayi eastonensis Cockerell. Wash. 



Nomada (Gnathias) grayi eastonensis Cockerell, 1903. Acad. Nat. Sci. Phila., Proc. 55: 597. 

 9. 

 grayi grayi Cockerell. Oreg. 



Nomada Grayi Cockerell, 1903. Ann. and Mag. Nat. Hist. (7) 12: 203. 9. 

 heterosticta Cockerell. Idaho. 



Nomada (Gnathias) heterosticta Cockerell, 1921. Amer. Mus. Novitates 24: 9. 9. 

 hydrophylli Swenk. N. Dak., 111., Md. 



Nomada (Gnathias) hydrophylli Swenk, 1915. Nebr. Univ., Studies 15: 25. 6. 



Gnathias xanthoparius Robertson, 1928. Flowers and Insects, Carlinville, Ill.,jjp. 9, 101, 

 111, 152. 6. Nomen nudum. 

 klamathensis Fox. Oreg. 



Nomada (Gnathias) klamathensis Fox, 1926. Pan-Pacific Ent. 5: 212. S. 

 lepida Cresson. Minn, to Maine, south to Ga. 



Nomada lepida Cresson, 1863. Ent. Soc. Phila., Proc. 2: 288. 6. 

 leucozona Rodeck. Colo. 



Nomada (Gnathias) leucozona Rodeck, 1931. Amer. Mus. Novitates 496: 4. S. 



louisianae Cockerell. Nebr. and Minn, to N. Y., S. C. and La. 



Nomada (Gnathias) louisianae Cockerell, 1903. Acad. Nat. Sci. Phila., Proc. 55: 602. 9. 

 maculata Cresson. Minn, to Maine, south to Va. 



Nomada maculata Cresson, 1863. Ent. Soc. Phila., Proc. 2: 303. 9, d ? 



Nomada volatilis Smith, 1879. Descr. New Species Hym. Brit. Mus., p. 100. 6. 

 opacella Timberlake. Calif. Host: Andrena caerulea Sm., A. suavis Timb. 



Nomada (Giiathias) opacella Timberlake, 1954. Pan-Pacific Ent. 30: 133. 9,6. 



