92 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.47. 



flavolineatum Smith, 1879. Oajaca, Mexico. Tab. 3. 

 formosum Cresson, 1878. Colorado (Ridings). Tab. 2. 



Possibly the male of cressonii. 

 gabbii Cresson, 1878. Costa Rica (W. M. Gabb). Tab. 3. 



*gilense Cockerell, 1897. West Fork of Gila River, New Mexico (Townsend). 

 Tab. 1, 2. 

 Also in Texas. 



Male: Ann. Mag. Nat. Hist., May 1900, p. 413. 

 Type—Cat. No. 5810, U.S.N.M. 

 gualanense Cockerell, 1912. Gualan, Guatemala (W. P. Cockerell). 

 illustre Cresson (see under Anthidium). Nevada (Monison). Tab. 2. 

 Impatiens Smith, 1879. "South Mexico." Tab. 3. 

 interruptum Say, 1824. "Missouri." 



Name preoccupied : = snyi. 

 *jugatoriuni Say 1824. "Missouri." Tab. 4. 



Very close to perpictum, differing in color of tegulfe. 

 *larreae Cockerell, 1897. Near Agricultural College, Mesilla Valley, New Mexico 

 (Cockerell). Tab. 2. 

 Legs red. Relationships; Bull. Southern California Acad. Sci., Feb., 1904, p. 23. 

 Type.— C&t. No. 3507, U.S.N.M. 

 lepidum Cresson, 1878. Georgia (Morrison). Tab. 2. 



''Resemhles jugatorium in ornamentation of abdomen" (Cresson). 

 *inacruruin Cockerell, 1913. Federal District, Mexico (J. R. Inda). 



Type.— Cat. No. 16226, U.S.N.M. 

 mexicanum Cresson, 1878. Mexico (Sumichrast). Tab. 3. 



■\Vings fuscous. 

 *iiotatuiaLATREiLLE, 1809. "Carolina." Tab. 2. 



Redescribed by Cresson, Proc. Ent. Soc. PMla., vol. 2, 1864, p. 376. 

 orizabse Dalla Torre, 1896. Tab. 3. 



New name for A. atriventre Smith, preoccupied. 

 *parvum Cresson, 1878. Colorado (Ridings). Tab. 1, 2. 

 "Marked very much like simile, but smaller" (Cresson). 

 *perpictuni Cockerell, 1898. Ruidoso Creek, New Mexico (Wooton). Tab. 1. 

 Type.— Cat. No. 5807, U.S.N.M. 



I have recently (Aug. 8, 1913) taken this at (lowers of Helianthus annuus, at Buulder, 

 Colorado. 

 perpictum coloradense Swenk, 1913. Colorado Springs, Colorado, 

 perplexum Smith. See under Antliidium. 



*provancheri Titus, 1906. Los Angeles County, California (Coquillett). 

 "Closely allied to ulkei, ehrhorni, and simile" (Titus). 

 Type.— Cat. No. 9033, U.S.N.M. 

 pudens Cresson, 1879. Nevada (Morrison). Tab. 2. 



"This may prove to be the female of pudtcum." (Cresson). 

 *pudicum Cresson, 1879. Nevada (Morrison). Tab. 2. 



Resembles D. parvum, but markings paler; perhaps not specifically distinct. 

 Female; Entomologist, May, 1907, p. 99. 

 *robertsoni Cockerell, 1904. Rock Creek, California (Davidson). Tab. 1. 

 Belongs to subgenus Anthidiellum. 

 Type.— Cat. No. 9654, U.S.N.M. 

 *sayi Cockerell, 1907. Tab. 4. 



New name for interruptum Say, preoccupied. 

 sayi xerophilum Cockerell, 1907. Mesilla, New Mexico (Cockerell). 



A very red form . 

 *simile Cresson, 1864. "Mass., Conn." Tab. 2. 



