NO. 2045. NORTH AMERICAN BEE8—C0CKERELL. 93 



Varietal fonn or race in Texas; Proc. Ent. Soc. Wasliington, IX, p. 72. 

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



"Easily recognized (female) by the dilated lateral margin of abdominal segments 2 

 to 4" (Cresson). First two abdominal segments with the yellow bands divided 

 into spots. 

 singulare perluteumT. and W. Cockerell, 1904. Wilson's Peak, California (Davidson). 



First two abdominal segments with the yellow bands deeply notched, but not 

 divided. 

 subparvum Swenk, 1913. Pullman, Washington (C. V. Piper), 

 tertiarium Cockerell, 1906. Fossil in the Miocene ehalea of Florissant (Scudder.) 

 *texanuni Cresson, 1878. Texas (Belrage). Tab. 2. 



Nest and female; Melander, Biol. Bull., 1902. 



Allied to concinnum. 

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

 *ulkei Cresson, 1878. Utah (Hy. Ulke). Tab. 2,4. 



Comparison with parimm; Entom. News, 1909, p. 261. 

 *ulkei perterritum Cockerell, 1913. Santa Fe, New i^Iexico (Cockerell). 

 venustum Cresson, 1878. Colorado (Ridings, Morrison). 



Name preoccupied : = crcssonii. 



The following South American species are known to belong to Dianthidium: 

 D. inerme Friese. D. gregarium Schrottky. 



D. hertonii Schrottky. D. gregarium continuifasciatum Strand. 



D. zehratwn Scln-ottky. D. tigrinum Schrottky. 



D. bicoloratum Smith. D. anisilsi Schrottky. 



D. bicoloratum tucumanum Vachal. D. paraguaycnse Schrottky. 



D. steloides Spinola. D. muUiplicatum Smith. 



D. confusuvi Smith. D. lunatum Smith. 



D. indescriptum Dalla Torre. D. joergensem Friese (bricchi Schrottky). 



D. nudum Schrottky. D. brcthesi Schrottky. 



D. vemonise Schrottky. D. catamarcense Schrottky. 



D. megachiloides Holmberg. D. autumnale Schrottky. 



D. heathi Cockerell. D. nectarinioides Sclu-ottky. 



D. iheringi Schrottky. D. multifasciatum Strand. 



Anihidium rubripes Friese, which Brethes (1909) referred to Dianthidium, is an 

 Anlkidium. 



Genus HYPANTHIDIUM Cockerell. 



Second recurrent nervure passing well beyond second submarginal cell, as in 

 Dianthidium, but feet with no pulvilli. 

 aureocinctum Cockerell, 1912. Mexico. 

 *panamense Cockerell, 1913. Gatun, Canal Zone, Panama (A. II. Jennings.) 



Type.—C&t. No. 16227, U.S.N. M. 



The type of Eypanthidium is the South American E . fiavomarginatum Smith. 

 Genus HETERANTHIDIUM Cockerell. i 



Second recurrent nervure meeting second transverse cubital, as in Anthidium; feet 

 with pulvilli; end of male abdomen pointed. See also Ent. News, 1909, p. 261 

 *cliippewaens8 Graenicher, 1910. Indian village at juncture of the Lower Tama- 

 rack and St. Croix Rivers, Minnesota (Graenicher). 



Parafype.— Cat. No. 14915, U.S.N.M. 

 cockerelli Titus, 1902. Rocky Ford (Gillette) and Virginia Dale (Titus), Colorado. 



Described under Protanthidium. 

 dorsale Lepeletier, 1841. Georgia. This is the type of the genus. 



Legs ferruginous; hair of thorax and head above rufous. 



Entomological News, 1904, p. 292. 



