AMERICAN HYMENOPTERA. 289 



A list of the North American species of the genus ANTHOPHORA, 

 with descriptions of new species. 



BY E. T. CRESSON. 



The species known to me may be recognized by the aid of the fol- 

 lowing table : 



Abdomen with white marginal fasciae; 



Thorax and base of abdomen with ochraceous pubescence : 



Terminal joint of middle tarsi of % ciliated laterally; clypeus with two 



black spots at base Walshii, % 9- 



Terminal joint of middle tarsi of % simj^le; clypeus with only a short black 



line on lateral suture Smithii, % 9 • 



Terminal joint of middle tarsi of '^ simple; hind legs swollen and basal 



joint of their tarsi toothed within californica, % . 



Thorax and base of abdomen with sooty, or mixed black and white, pubes- 

 cence marginata, 9- 



Abdomen subfasciate with pale pubescence : 



Thorax and base of abdomen with dense ochraceous pubescence. ...montana, 9 • 

 Thorax and abdomen with thin jjale or yellowish pubescence, tip of abdomen 

 with fulvous pubescence; basal joint of hind tarsi simple. .terminalis, % 9 • 

 Abdomen not fasciate : 



Thorax and first segment of abdomen with a hoary pubescence, middle tarsi 

 long, ciliated with fulvous, and terminal joint with black pubescence ; 



basal joint of hind tarsi simple ursina, % . 



Thorax and first segment of abdomen with a dense ochraceous pubescence ; 

 rest of abdomen shinitag, almost nude; first recurrent nervure entering 



second submarginal cell at tip floridana, 9 • 



Thorax and first segment of abdomen, more or less, with a pale ochraceous 

 pubescence ; rest of abdomen dull, with short black pubescence ; first re- 

 current nervure entering second submarginal cell in middle; basal joint 



of hind tarsi of % with a blunt tooth within abrupta, % 9- 



Thorax, and first and base of second segments of abdomen with lemon-yellow 

 pubescence ; vertex and occiput with black pubescence ; basal joint of 



hind tarsi of '^ toothed within canadensis, %. 



Thorax, and the first and second, and sometimes the third segments of abdo- 

 men with whitish pubescence; the basal joint of hind tarsi of '^ toothed 



within bomboides, % 9- 



Entire body covered with a short, dense, bright yellow pubescence ; basal joint 



of hind tarsi of "J, toothed within occidentalis, % 9- 



Pubescence of body black, except apex of thorax and base of abdomen where 



it is bright ferruginous ; basal joint of hind tarsi ( % ) simple. ..tricolor, % . 



Pubescence of the body entirely black; basal joint of the posterior tarsi ('J,) 



simple atrata, % . 



1 . Anthophora Smithii, n. sj). 



S 9 • — Form short and very robust; black, opaque; head, thorax, 

 legs and first abdominal segment clothed with short, dense, pale yellow- 

 ish pubescence, that on the thorax beneath hoary ; apical margin of 



TRANS. AMER. ENT. SOC. (38) MARCH, 1869. 



