72 E. T. CRESSON. 



Nomada Edwardsii. — %. — Black, head and thorax closely and deeply 

 punctured; sides of the face, narrowed above but not quite reaching the 

 summit of eyes, spot on vertex beneath ocelli, clypeus except two black dots, 

 spot above, labrum, mandibles except tips, posterior orbits, scape beneath, 

 collar, lateral margin of mesothorax dilated anteriorly, two short lines on 

 disk, tubercles, large mark on pleura, scutellums, large angular mark on each 

 side of metathorax, and tegulse, all lemon-yellow: flagellum ferruginous at 

 base and beneath, second and third joints subequal, the second slightly longer; 

 wings dusky, darker at apex; legs yellow, coxse, femora and tibiae behind 

 more or less black; abdomen very minutely punctured, lemon-yellow, basal 

 half of first segment and basal margin of remaining segments, black. Length 

 .50 inch. 



Ilab. — California, (Henry Edwards). One specimen. This fine 

 species closely resembles superba Cress., but is quite distinct. 



In giving the relative lengths of the third and fourth joints of 

 antennae,' (second and third of flagellum), the view is always taken 

 from beneath, the greatest difference being generally noticeable in 

 the males. 



Noiuada jflorrisoni. — 9- — Ferruginous; head and thorax densely and 

 confluently punctured; sides of face, clypeus, spot above, labrum, base of 

 mandibles, posterior orbits, collar, tegulse, tubercles, band or two spots on 

 scutellum, generally a line on postscutellum, and a more or less distinct mark 

 on pleura, yellow; dot on each side of clypeus at base, space around base of 

 antennae, spot enclosing ocelli, posterior margin of head, most of prothorax, 

 anterior middle of mesothorax, and the metathorax, except two yellow spots 

 sometimes margined with ferruginous, black; antennae pale ferruginous, third 

 and fourth joints equal in length; scutellum slightly bilobate; wings faintly 

 dusky, darker at apex; legs pale ferruginous, knees and tibiae more or less 

 yellow, coxae black behind; abdomen shining, very minutely punctured, yel- 

 low, basal half of first segment ferruginous, apical margin of segments 1 — 4 

 narrowly brown or ferruginous; venter yellow, ferruginous at base; the yellow 

 band on first segment is often more or less deeply notched on the anterior 

 middle. Length .40 — 45 inch. 



Hub. — Colorado, (H. K. Morrison). Eight specimens. 



Noinada Belfragei. — 9- — Form short, unusually robust, ferruginous, 

 head strongly, clypeus finely, and mesothorax coarsely and confluently punc- 

 tured; line connecting ocelli and tips of mandibles black; flagellum fuscous 

 above, the second joint of flagellum longer than third; collar, tubercles, two 

 spots on scutellum and line on postscutellum obscurely yellow; scutellum 

 strongly bilobate; metathorax nearly smooth, with white pubescence laterally : 

 pleura strongly and sparsely punctured; wings fuscous on apical margin; 

 abdomen finely and closely punctured shining, a large ovate spot on each side 

 of first and second segments, largest on second, an interrupted band on third 

 and a narrower band on fourth and fifth, yellow; venter immaculate. Length 

 .40 inch. 



JIab. — Texas, (G. W. Belfrage). A very distinct species, with an 

 unusually robust form. 



