NO. 1806. BEES IN THE NATIONAL MUSEUM. l.—COCKERELL. 657 



spots on the fifth abdominal segment, and the pygidial plate broadly 

 rounded, closely and very finely pubescent. This ought to be N. illi- 

 noensis Robertson, but the antennsB are practically as in sayi — cer- 

 tainly not shorter, and there is no yellow on the lower corners of the 

 face. Probably the sayi — illinoensis group — includes one or two 

 species which have not been separated, but more material is needed, 

 especially males. For the present I call the Pittsburg insect N. 

 illinoensis, var. a. 



NOMADA ILLINOENSIS Robertson. 



Two males, Ardmore, Oklahoma, at flowers of wild plum, March 12 

 (Bishopp) and April 10 (Jones). 



NOMADA VICTRIX, new species. 



Female. — Length 7^ to 9 mm., expanse up to about 15 mm.; bright 

 ferruginous red, the strongly and closely punctured mesothorax with- 

 out any black band, the scutellum very flat, not bilobed, shining, 

 with large sparse punctures. Head broad, inner orbits parallel ; face 

 strongly punctured, no yellow at lower corners; mandibles simple; 

 no black on head except a little stain between the ocelli, and some- 

 times a little on the hindmost part of the cheeks; antennae entirely 

 ferruginous, third joint longer than fourth, fourth shorter than 

 twelfth; thorax nearly without black, but a variable black stain in 

 the middle of the metathorax; hair at sides of metathorax short and 

 scanty; tegulse bright ferruginous; wings reddish-dusky, h. n. meet- 

 ing t. m.; only two submarginal cells, the second t. c. wholly absent in 

 all three specimens; legs red, hind femora and tibiae more or less 

 stained with dusky behind; abdomen dullish, without distinct punc- 

 tures, red, the hind margins of the segments blackish; second seg- 

 ment with two large pyriform or oblong yellow spots or patches; third 

 and fourth with small lateral spots; fifth without spots, or with very 

 faint indications of them; silvery apical lunule small and narrow 

 (short) ; pygidial plate broadly rounded ; venter red without spots. 



Habitat. — Victoria, Texas, three females at flowers of Aster Novem- 

 ber 6, 1904 (A. J. Leister). By the low scutellum, this is related to 

 A^. simplex Robertson. The possession of only two submarginal cells 

 would suggest relationship with N. (Heminomada) ohliterata Cresson, 

 but this is fallacious, since in ohliterata it is the first t. c. that is absent. 

 Nomada (Nomadita) montana Mocsary is a European species with 

 only two submarginal cells. 



Ty2)e.— Cat. No. 13436, U.S.N.M. 



NOMADA (GNATHIAS) BELLA CALLURA, new subspecies. 



Male. — Length about 10 mm.; lower half of clypeus and narrow 

 lateral marks pale yellow, the clypeal yellow more or less tridentate 

 above; third antennal joint shorter than fourth; scape rather stout, 

 black on inner (mesad) side, broadly red on outer; flagellum stout, 



ProcN.M. vol.39— 10 44 



