Records of Bees. 161 



maxillary palpi 2 -join ted ; antennae black ; clypeus densely 

 and minutely rugoso-punctate ; upper part of face covered 

 with pure white hair; mesothorax and scutellum dull and 

 rough, scutellum bilobed ; mesothorax with the anterior and 

 posterior corners, and a pair of well-defined broad bands 

 anteriorly, with greyish-white pubescence ; mesopleura with 

 only the upper half densely pubescent ; scutellum covered 

 with white hair posteriorly. Wings with the apical margin 

 dusky. Abdomen with the usual bands of creamy-white 

 tomentum, those on apices of segments 1 to 5 narrowly 

 interrupted in middle, on 2 to 4 concave anteriorly sub- 

 laterally, on 2 connected with a round patch at sides, on 5 

 reduced to a pair of transverse patches; band on sixth seg- 

 ment entire ; black area on first segment a broad transverse 

 band, obliquely truncate at each end. 



Variety a. Bands on mesothorax anteriorly altered to 

 broad suffused patches, partly coalescent. 



Pullman, Washington State, Aug. 2, 1908 {W. M. Mann). 



In Robertson's table (Canad. Entom. 1903, p. 288) this 

 runs out, having the pleura below quite closely punctured, 

 the scutellum bilobed, and the mandibles toothed. It may 

 be compared with E. interruptus, Rob., but that is larger, 

 with red legs and scape. E. olympiellus , Ckll., is larger, with 

 the labrum entirely black and the tegulae darker ; it comes 

 from the moist coast region, and evidently E. humillimus is 

 its representative in the dry interior. The two may be 

 found to intergrade in the country between. 



Nomia (Hoplonomia) ej-jmlsa, sp. n. 



S ■ — Length about 12'5 mm. 



Black, with the hind tibia? (except a black spot) and tarsi 

 dull ferruginous. Eyes reddish brown, strongly converging 

 below ; face covered with ochreous hair ; fiagelluin dusky 

 red beneath ; head and thorax dorsally with rather coarse 

 ochreous hair, ventrally with white hair, the transition 

 gradual at sides; mesothorax and scutellum dull and 

 rugose ; postscutellum with a pair of long spines, red at 

 end ; tegulas large, brown, with a broad whitish border. 

 Wings dusky reddish; stigma (which is small) and nervures 

 ferruginous; first r. n. joining second s.m. very near its end. 

 Legs with whitish hair ; hind femora enormously swollen, 

 subglobose, conoid ; hind tibiae extremely short and stout, 

 triangular, the spurs arising from the extremely produced 

 inner apical corner ; hind basitarsi greatly 'broadened, 



