No. 174",. AMERICAS BEES OF THE GENUS NOMIA—COCKERELL. 293 



be a subspecies of X. bdkeri, but in any event it will be easily dis- 

 tinguished in its typical range. 



Habitat. — Utica, Mississippi (type-locality), from Ashmead's col- 

 lection; Selma, Alabama, October, 1880, and July, 1881 (W. II. 

 Pattern, collector.) 



Type-specimen.— Oat. No. 12984, U.S.N.M. 



A female from Selma, Alabama, is labeled "Sept. 30, 1880. E. A. 

 Schwarz. See notes on Myodites." 



Named for W. H. Pat (oil. 



NOMIA ARIZONENSIS Cockerell. 



The U. S. National .Museum has a long series from Arizona, the 

 precise locality, whenever given, being Tucson. In the male the 

 wings, except for the broad dark apical border, are very pale, almost 

 milky; but in the females they are more yellowish or dusky. The 

 females have collected a great quantity of orange pollen, no doubt 

 from the composite. In the male, the median depression or con- 

 striction of the first three abdominal segments is extremely marked, 

 and the flagellum is ferruginous beneath, this color abruptly con- 

 trasting with the black which occupies two-thirds of the circumfer- 

 ence. 



NOMIA ARIZONENSIS ANGELESIA, new subspecies. 



Nomia angelesia Ashmead MS. (No description.) 



I was first inclined to treat this as identical with N. arizonensis, 

 but it is normally larger (anterior wing, 8| mm.). The mesothorax 

 seems less densely punctured, and the male flagellum is quite differ- 

 ently colored, being very dark reddish beneath, the red shading into 

 the black. The basal area of the metathorax is very narrow (i. e., 

 short antero posteriorly). The teguhe arc clear fulvotestaceous, and 

 the light abdominal hair-bands are very distinct. 



Habitat. — Los Angeles County, California (I). W. Coquillett) — type- 

 locality; San Bernardino County, California, "338, through ('. V. 

 Riley. : ' 



Type-specimen.- -Cat. No. 12985, U.S.N.M. 



GROUP OF NOMIA TRIANGULIFERA (EPINOMIA). 



Larger than the species of the nevadenis group; abdomen black, 

 without iridescent bands; hind tibiae of male much broadened apically, 

 produced at the inner apical corner into a huge stout spine, but the 

 inner side only slightly concave beyond the middle, not excavated. 

 The triangular depression on the fourth ventral segment of the male 

 is also well marked in the nevadensis group, becoming narrower. 

 however, in X. arizonensis angelesia. Tin; females resemble species 

 of Andrena, and may be found visiting species of Composite. 



