142 On Bees from New Mesico. 
Springs, Colorado, at the middle of July, is distinguished 
from meliloti by its considerably larger size and the fact that 
the two middle teeth at the end of the abdomen are con- 
siderably broader than long. 
I have a single female from Soledad Caiion, in the Organ 
Mountains, which I think must belong to meddlote. It was 
collected by Prof. C. H. T. Townsend on Aug. 15 on Melam- 
odium cinereum, DC. (det. EK. O. Wooton) ; it is extremely 
like Sta. Fé cactorum, but larger, about 64 millim. long, and 
has a noticeably larger head and broader face. 
Flalictus ruidosensis, sp. n. 
2. Length 6 millim. 
Head and thorax very dark Prussian green, abdomen and 
legs black. Head ordinary, face broad; eyes converging 
above and below, so that the inner orbital margin is noticeably 
curved ; face and front rough from the strong and extremely 
close punctuation, dark blue-green; except the clypeus and 
supraclypeal area, which are olive-green with a coppery 
lustre, the anterior margin of the clypeus broadly black. 
The punctuation of the lower parts of the face is also much 
less close than that above, and the clypeus and supraclypeal 
area are minutely roughened with strong but quite sparse 
punctures. Mandibles dark rufescent at ends; antenne 
wholly very dark brown. Pubescence throughout dirty 
white, with a faint yellowish tint, sparse on head and thorax, 
but conspicuous in certain lights, not at all concealing surface 
of face. Thorax dark blue-green, metathorax perhaps a little 
bluer than the parts in front of it; mesothorax minutely 
granular and strongly and quite closely punctured ; a distinct 
median impressed line ; with a strong lens in a good light the 
postscutellum and hind part of scutellum appear quite an 
olive-green and the metathorax deep blue-black, strongly 
contrasting; metathorax minutely granular, rather shining, 
truncate, the distinct crescent-shaped basal area bounded only 
by a rounded edge ; basal portion of enclosure finely rugose- 
plicate. ‘Tegule shining piceous, not punctured. Wings 
hyaline, iridescent, slightly dusky towards apex; nervures 
and stigma piceous. Legs black, tibial spurs rufous, hind 
legs quite densely pubescent. Abdomen moderately broad, 
brown-black ; first segment sparsely and feebly punctured, 
remaining segments more closely but still feebly punctured ; 
hind margins of segments so narrowly and feebly testaceous 
that it is not readily noticeable; no hair-bands, but sides of 
first three segments, and dorsum of hind part of third and all 
