264 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.43. 



fulvitarsis Cresson, 1878. Colorado (Morrison). Tab. 1. 

 fulvohirta Cresson, 1878. Georgia (Morrison). Tab. 1. 

 fuscipes Robertson, 1900. Illinois (Robertson). Tab. 4. 



Probably same as illinoensis; described as a variety of T. atriventris. The name is 

 preoccupied (T. fuscipes Morawitz, 1894). 

 fuscotincta Cockerell, 1905. Oak Creek Canon, Arizona (F. H, Snow). 

 gillettei Cockerell, 1905. Fort Collins, Colorado, June 12. 



Male of T. speciosa. 

 gillettei snoviana Cockerell, 1905. Clark County, Kansas (F. H. Snow). Tab. 1, 2. 

 hirsutior Cockerell, 1905. Banning, California (Davidson). Tab. 1. 



Cl>i)eus of male black with light hair. 



* honesta Cresson, 1872. Texas (Belfrage; Boll). Tab. 1. 

 Same as belfragei, according to Robertson. 



idiotes Cockerell, 1905. Rock Creek, California (Davidson). Tab. 1 (p. 91). 



Probably a race of T. stretchii. 

 illinoensis Robertson, 1902. Illinois (Robertson). Tab. 4. 

 intrudens Cresson, 1879. Nevada. Tab. 1. 

 lata Provancher, 1888. Vancouver Island (Taylor). 

 latior Cockerell, 1897. Olympia, Washington (Kincaid). 



Same as lata. 

 lepida Cresson, 1878. "Texas (Belfrage); Colorado (Morrison)". Tab. 1, 2. 

 lippiae CocKEnELi,= Xenoglossodes lippise. 



* lycii Cockerell, 1897. Mesilla Valley, New Mexico (Cockerell). Tab. 2. 



Type.— Cat. No. 5833, U.S.N.M. 

 tnedicata Cockerell, 1911. (Canadian Entomologist, p. 34.) Medicine Hat, Alberta 

 (T. N. Willing). 

 Resembles T. atriventis (female), but pygidial plate narrower; hair of head (except 

 occiput), of pleura and under part of thorax, all black; of thorax above, creamy 

 white. 

 nevadensis Cresson, 1879. Nevada (Morrison.) 



Same as intrudens. 

 nigricornis Provancher, 1888. Vancouver Island (Taylor). 

 phacelise Cockerell, 1911. Albuquerque, New Mexico (J. R. Watson). 



Related to T. annse. 

 rosae, Robertson, 1900. Illinois (Robertson). Tab. 4. 



* speciosa Cresson, 1878. Colorado (Ridings, Morrison). Tab. 1, 2, 3. 

 stretchii Cresson, 1878. California (R. H. Stretch). Tab. 1 (p. 91). 

 territella Cockerell, 1905. Palisade, Colorado, May 7 (Gillette). Tab. 1, 2. 



Described from the male. 

 trinidadensis Friese, 1908. Belmont, Trinidad, West Indies. 



Male like nigroxnea Smith, but face black, etc. Length, 9 mm. 

 truttae Cockerell, 1905. Trout Spring, New Mexico (Cockerell). Tab. 2. 

 virgata Cockerell, 1905. Los Angeles, California (Davidson). 



Described as a subspecies of belfragei. 

 yakimensis Cockerell, 1906. Yakima, Washington. 



Genus CEMOLOBUS Robertson. 



Type. — {Xenoglossa) Cemolohus ipomoex (Robertson). 



Female with clypeus trilobed; inner tooth of claws short; clypeus in male also 

 trilobed, with a transverse apical whitish band; hind basitarsus of male arcuate, its 

 upper apical border beveled, produced below. For other characters see Robertson, 

 Trans. Amer. Ent. Soc, vol. 31, pp. 365 and 366. 



ipomoeae Robertson, 1891. Carlinville, Illinois (Robertson). 

 Visits Ipomoea. Also in Pennsylvania. 



