004 PROCEEDINGS OF THE ACADEMY OF [Aug., 



known to me. One in Coll. of Acad. Xat. Sci. Phila. I suspect that 

 it came from Prof. Gillette. 



Nomada wheeleri, sp. n. 



2 . — T.eno'th 9^ mm.; robust, red, yellow and black; eyes purplish- 

 gray; face slightly narrowed below; clypeus (except lateral spots), 

 labrum, basal half of mandibles, anterior orbits broad below and ex- 

 tending more narrowly to top of eyes, and basal third of posterior orbits 

 narrowly, all red ; other parts of head black ; front and vertex with very 

 coarse punctures; labrum closely and coarsely punctui-ed, with about 

 four minute red denticles on middle of anterior margin ; antennas rather 

 short, third joint longer than fourth; first three joints bright red, the 

 rest darker, the apical half of the flagellum thickened and quite dusky; 

 mesothorax Avith dense extremel}^ large punctures, its color dull red. 

 the anterior margin narrowly black, and a black median band on its 

 posterior two-fifths ; the prominent upper margin of prothorax, tuber- 

 cles, the strongly bilobed scutcllum except its median suture, and the 

 postscutellum, yellow; pleura red with a yellow spot; metathorax 

 entirely black, the enclosure short, the sides heavily bearded with yel- 

 lowish-white hair; tcgulie red, large ; Avings nearly clear, dusky on apical 

 margin, stigma small, ferruginous, nei'A'ures brown; second and 

 third submarginal cells of equal breadth above, third scarcely angled 

 outwardly; basal nervure meeting transverso-cubital; legs red, an- 

 terior coxa3 with an apical point, hardl}^ to be called a spine; abdomen 

 closely and minutely Init distinctly punctured; first segment red. 

 clouded with black at base, and with two large transverse yellow 

 marks; second red, almost covered by a dull yellow band which is 

 very deeply and broadly emarginate in front; third yellow with the 

 apical margin fuscous ; fourth yellow, black at extreme base, and very 

 narrowly fuscous on apical margin; fifth yellow; pj^gidium rounded 

 at end; venter ferruginous, with a semilunar yellow mark on fourth 

 segment. 



Hab. — Texas (Belfragc). One in U. S. National Museum. Named 

 after Prof. W. jM. Wheeler, who has made such valuable contributions 

 to the knowledge of Texan entomology. The densely (though very 

 coarsely) punctured pleura, the markings of the face and abdomen, 

 and the less robust form, distinguish this from N. hclfragei, to which it 

 is allied. The species belongs to Micronomada (syn. Cephen, Rob.), 

 and it is also allied to .Y. fervida, Smith, which occurs in Florida and 

 Georgia. 



