Pomona College, Claremont, California 55 



black; abdomen with sublateral dark spots; apical plate minutely 

 notched. 



Nomada pyrrJia sp. n. 

 9 Length about 8 mm. ; bright ferruginous red, without yel- 

 low markings, and practically without dark ones; mandibles simple; 

 head very broad; third antennal joint a little longer than fourth; 

 black between ocelli ; mesothorax densely roughened, with three 

 faintly indicated bands of darker red; post scutellum not yellow; 

 metathorax with a dusky shade in middle below the enclosure; face, 

 scape and front with scattered long fuscous hairs; thorax above 

 practically hairless; sides of metathorax with a patch of white 

 hair; a black patch near bases of middle and hind legs; teguLx 

 bright red, punctured; wings dilute brown, darker at apex; stigma 

 ferruginous, nervures fuscous; b. n. going a considerable distance 

 basad of t. m. ; third s. m. much narrowed above; hind tibis rough- 

 ened on outer side, but not distinctly tuberculate; abdomen dullish, 

 minutely granular; sides apically with fuscous hair; fifth segment 

 with a narrow band of shining white tomentum. 



Habitat: Claremont, California {Baker; Pomona coll. 169). 

 Closely resembles N. califoru'hp Ckll., but is evidently an entirely 

 red Xauthidiiim, to be associated with N. miuiata Sm., which how- 

 ever, has the third antennal joint much shorter than the fourth, 

 and orange spots on the abdomen. 



Nomada mehuwsoma sp. n. 



$ Length a little over 5 mm. ; black, the body almost without 

 light markings; hind margins of abdominal segments (fully half 

 of second and third) obscurely brown; extreme sides of segments 

 2 to 5 with very oblique broad white stripes; mandibles simple, 

 white at base; lower edge of clypeus very narrowly reddish, with 

 a white mark on each side; malar space white; head broad; face 

 covered with silvery-white hair; antenna? long, the flagellum thick, 

 the joints swollen, obscure dark reddish beneath; third antennal 

 joint about half length of fourth; vertex, cheeks and thorax (espe- 

 cially pleura and metathorax) with white hair; mesothorax dull, 

 extremely densely rugoso-punctate ; anterior legs in front, middle 

 tarsi and apical part of femora in front, and apex of hind femora 



