Pomona Collcpc, Cl.ircniont, California 57 
tenn;p very lonji;, third joint about half length of fourth; scape 
black; flagellum fuUous beneath, suffusedly blackened above; tuber- 
cles vcllow, two minute yellow dots at anterior corners of scutel- 
luin, and two yellow spots on postscutellum, all these markings in- 
conspicuous; legs black and ferruginous, some of the markings 
characteristic; the anterior tibial* red with a black stripe on outer 
side, at the end of which is a cream-colored spot; the middle femora 
red in front, with a large black basal patch; the middle tibis red 
with a broad black band on outer side, and an apical cream-colored 
spot in front; the hind knees creamy-white; tegula? ferruginous; 
wings reaching about to end of fourth abdominal segment, dilute 
brownish with a large clear patch in the subapical field; stigma 
dark, dusky red; b. n. going a little basad of t. m. ; abdomen long 
and narrow, dull ferruginous, the segments with broad dark basal 
bands; segments 1 to 4 with large (largest on second) lateral 
creamy-white patches, the first two short and broad, the other two 
transversely elongate, each having upon it a clear red spot; fifth 
segment with the pale patches almost joined in middle, sixth with 
a broad pale banci covering nearly all the surface; apical plate 
ilccply notched; \'enter ferruginous with whitish and dusky mark- 
ings. 
Ffiihiiiit: Claremont. California {Baker; Pomona coll. 172). 
A distinct little species of Nomada s. str. The abdominal mark- 
ings suggest N. crotchii Cress., the male of which is not known, 
but the male of N. crntrhii niqrior differs from erythrospUa so much 
in form and face-markings, that we can hardly refer the latter to 
rroliliii. In N. crotchii the first r. n. joins the second s. m. far 
bcvond the middle, but in crxthrospihi it joins it at the middle. N. 
mnrgineUa Ckll., is allied to .V. erythraspihi, but the antenna are 
quite different. 
Nniiuulii ndontncera sp. n. 
$ Length a little over 7 mm.; rather robust, head and thorax 
black, densely rugosopunctate, but the large punctures of the meso- 
thorax glistening; hair of head and thorax above pale fox-red, 
beneath dull white; head transversely oval; mandibles simple, yel- 
low, red at apex; labrum yellow, not dentate; clypeus (except nar- 
row upper margin) and lateral marks yellow, the latter extending 
