OF WASHINGTON. 83 



Female. Similar to the male, but the lining of the veins much less 

 distinct, except on vein 7 and the costa; all the colors are somewhat 

 paler than in the male and the pink tint is wholly wanting, but this 

 may be due to age. In consequence the basal space appears darker 

 than the rest of the wing, while on the hind wing the base is whitish. 

 The ocellate discal spots are more widely centered and larger, that of 

 the hind wing having a distinct central lumen. Expanse, 78 mm. 



One male, Mexico City, Mexico, March 1908 (R. Miiller) ; 

 one female, Fly Park, Chiricahua Mts., Arizona, 10,000 feet, 

 June 9, 1894 (U. S. Dept. Agriculture). 



Type. No. 11871, U. S. National Museum. 



THREE NEW BEES OF THE GENUS NOMADA. 



By T. D. A. COCKERELL. 



Nomada mera, n. sp. 



Female. Length, about 10 mm. ; anterior wing, 8 mm. Red, rather 

 sparingly marked with black; abdomen above with bright lemon-yellow 

 markings, consisting of large pyriform lateral spots, the points di- 

 rected mesad, on segments 2 and 3, and a pair of rather large spots on 

 5; no yellow on segment 4, or on venter; no yellow whatever on head, 

 thorax, or legs; hair of face, cheeks, and sides of thorax, white; of 

 head above, and scutellum, ferruginous ; mandibles simple ; face with a 

 little black about ocelli and bases of antennae, and hind part of cheeks 

 black; antennas entirely red, normal, long, the flagellum stout; joint 3 

 about two-thirds length of 4; mesothorax very densely and strongly 

 punctured, with a single dark band ; scutellum elevated, bigibbous ; 

 metathorax with a median black band; tegulse bright ferruginous, 

 punctured ; wings with apical margin broadly fuscous ; stigma dark, 

 nervures black ; b. n. going far basad of t. m. ; second s. m. broad ; 

 anterior and middle femora black beneath at base ; hind femora mainly 

 black behind and beneath; first abdominal segment with a large black 

 mark springing from the base on each side; pubescent band on apex of 

 fifth segment narrow ; pygidial plate broad and subtruncate. Close to 

 N. cressonii Rob., but larger, and with no yellow on fourth abdominal 

 segment. 



Salina, Boulder County, Colorado, April 14, 1907 (W. P. 

 Cockerell). 



Nomada mera, var. a. 



Female. Differs by its paler coloration, the hind femora red behind, 

 with at most a slight blackish suffusion; abdomen paler, without any 

 evident blackish suffusion at sides of segments. 



