REPORT OF ENTOMOLOGIST. 
83 
Nomada coloradella, new species. 
A pair; 39 Fort Collins, Colorado, June 18, 1900; $, Colorado 
633 (Dolores, June 18, ’92, C. P. Gillette, collector). 
(J'; length 5£ mm.; head and thorax black,with abundant white hair; 
labrum, mandibles except tips, clypeus and lateral face-marks, bright 
yellow; lateral face-marks consisting of triangles occupying the lower 
corners of face, sending a line upwards to level of antennae; facial quad¬ 
rangle somewhat broader than long; antennae very long; scape moderate¬ 
ly stout, yellow in front and black behind; third joint much shorter than 
fourth; flagellum submoniliform, pointed at apex, bright light yellowish- 
ferruginous, the first four joints black above; tubercles and tegulae red¬ 
dish-testaceous, scutellum with two reddish spots, thorax otherwise all 
black; wings clear, dusky at apex; nervures and stigma yellowish-ferru¬ 
ginous, marginal cell long; second submarginal broad above, receiving 
the recurrent nervure far beyond its middle; third submarginal very 
broad below, greatly narrowed above, its outer margin strongly bent; 
basal nervure meeting transverso-medial (in N. sayi it is a long distance 
basad of it); legs red, the femora blackened behind and beneath; abdo¬ 
men ferruginous, basal half of first segment black; a bright yellow band, 
interrupted in the middle, on segments 2 and 3; yellow hardly apparent 
on 4, but prominent on 5 and 6; apex with long hairs; apical plate moder¬ 
ately notched; venter ferruginous. 
9 ; length about 6 mm., red, mesothorax and metathorax each with 
a single black band; ocelli on a black patch, but front all red; antennas 
red, scape with a blackish apical spot on inner side; third antennal joint 
about as long as fourth; first segment of abdomen practically without 
black; basal nervure meeting transverso-medial, but on the basad side. 
The (J 1 is to be regarded as the type; it is not quite certain that the 9 
belongs to it, but it is probable enough to justify the association for the 
present. The in its color and markings, is like N. sayi , but it is eas¬ 
ily distinguished by the venation. It differs from N. rhodosoma by its 
smaller size and much lighter antennae and stigma; from N. oregonica by 
its light orange stigma, and apical half of flagellum not black above; 
from N. lehighensis by its smaller size, and quite different color of an¬ 
tennae and stigma; from N. pygmeea by the absence of supraclypeal mark, 
and orbits not ferruginous. It is also allied to N. illinoiensis . The 9 
resembles N. rhodosomella, but is separatel by the characters given in 
the table. 
Nomada luteopicta, new species. 
Two and a $ collected by Prof. Gillette; all Palisades, Col¬ 
orado, May 7, 1901, from apple blossoms. 
cG length about 61 mm.; head and thorax black, with abundant 
white hair; labrum, mandibles except tips, narrow stripe beneath eyes, 
clypeus and lateral face-marks (consisting of a triangle at lower corners 
of face,sending a line upwards to level of antennae) all bright-yellow; eyes 
green; antennae long, scape rather swollen, yellow in front and black be¬ 
hind; third joint shorter than fourth; fourth shorter than last; flagellum 
bright clear yellowish-ferruginous,the first four joints black above ;tuber- 
cles, tegulae, upper border of prothorax,mark on anterior part of pleura, 
and two clearly-defined oval spots on scutellum, yellow; wings slightly 
dusky, apex darker; stigma dark ferruginous, nervures fuscous; second 
submarginal cell very narrow, or broadened below by the lengthening of 
the lower basad corner, in which case the recurrent nervure is received 
much beyond its middle; third submarginal extremely broad below, nar¬ 
rowed more than half above, its outer side strongly bent; basal nervure 
meeting transverso-medial; legs red, middle and hind coxae mainly black; 
middle femora with a black stripe beneath, hind femora mostly black be¬ 
hind; all the knees broadly, and apex of hind tibiae, yellow; abdomen 
yellow, the segments ferruginous on apical margin, and more or less 
black basally; apex with long hairs, apical plate very feebly notched; 
