248 HYMENOPTERA. 



80. NOMADA AMERICANA. B.M. 



Nomada Americana, Kirby, Faun. Boreal. Amer. p. 269. 1. pi. 6. 



f. 3?. 



Hab. North America ; Hudson's Bay. 



81. NOMADA ARTICULATA. B.M. 



Male. Length 3 lines. Black, the clypeus, labrum, mandi- 

 bles, sides of the face, scape in front and flagellum towards the 

 base yellow, the latter ferruginous towards the apex, above fus- 

 cous, the scape black above, joints of the flagellum submonili- 

 form. The tubercles, tegulse, scutellum and post-scutellum 

 ferruginous, the wings hyaline, the nervures ferruginous, the 

 apical margin of the superior wings fuscous ; legs ferruginous ; 

 the coxae and posterior femora within fusco-ferruginous ; the 

 two basal segments of the abdomen dark ferruginous, the apical 

 ones black ; a minute spot on each side of the first segment, a 

 large ovate one, pointed within, on the second, and a transverse 

 fascia on the four following placed about the middle, yellow ; the 

 apex ferruginous. 



Hab. North America. (E. Doubleday.) 



82. NOMADA ANNULATA. B.M. 



Female. Length 3J lines. Black, the sides of the face, orbits 

 of the eyes, clypeus, labrum and mandibles yellow ; the antennae 

 and a minute spot above the clypeus ferruginous. Thorax, the 

 collar, tubercles, a spot before and a line below them, the 

 scutellum and a patch on each side of the metathorax yellow ; 

 legs ferruginous, variegated with yellow, the wings slightly 

 clouded on their apical margins. Abdomen slightly ferruginous 

 towards the base, each segment having a transverse yellow band ; 

 the three basal bands more or less attenuated in the middle, the 

 bands continued beneath the abdomen. 



Male. Length 3J lines. This sex has the clypeus, labrum, 

 mandibles, scape of the antennae in front and the flagellum be- 

 neath of a pale yellowish-white, the latter is fuscous above 

 towards the base and again towards the apex, the intervening 

 joints are ferruginous and the apical one entirely yellowish-white ; 

 thorax, the scutellum ferruginous; the tubercles, tegulae and 

 nervures of the wings reddish -yellow, the wings subhy aline, 

 having a fuscous cloud at their apex. Abdomen black at the 

 extreme base, the rest of the first segment and the whole of the 

 second ferruginous, the latter having a large angulated yellow 

 macula on each side, the first only a minute dot ; each segment 



