298 
[November 
nous ; 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 fer¬ 
ruginous. 
•• H(ih. North America.” 
I ha ve before me five males from Connecticut (Coll. Mr. Norton) and 
two males from Rock Island, Ill., (Coll. Mr. Walsh), either of this 
species, or of W. annulata Smith, but cannot satisfactorily decide to 
which species they belong. Two specimens have their abdominal 
segments distended and showing the yellow markings very distinctly. 
All the seven specimens have the “ sides of the face yellow,” the an¬ 
tennae “ fuscous [or blackish] above towards the base and again to¬ 
wards the apex, the intervening joints are ferruginous,” and the apical 
joint also ferruginous or yellowish-ferruginous; the “abdomen black 
at the extreme base” and the segments have the same yellow mark¬ 
ings ; some have the flagellum beneath pale yellow and others yellow¬ 
ish-ferruginous; two specimens have the “ two basal segments of the 
abdomen dark ferruginous” except the base of the first segment, and 
“ the apical ones black”; one specimen has the base of the second seg¬ 
ment black, and the posterior margin of all the segments fuscous; and 
two specimens have the abdomen, except the base of the first segment 
and the yellow markings, entirely ferruginous; one of the two speci¬ 
mens first mentioned, and one of the last have the thorax dark ferru¬ 
ginous with a black longitudinal dorsal line, and in the last the orbits 
of the eyes are obsoletely ferruginous, and a patch on the pleura also 
ferruginous, the spots on the first abdominal segment being oblong, 
oblique and much larger than in the other specimens. The yellow 
markings of the third segment are, in almost all the specimens, a line 
on each side and not continuous as on the three following segments. 
I have placed these specimens under this species because all of them 
have the ’■'■Joints of the flagellum (except the apical joint) suhmonili- 
fonn'\ that character being specially mentioned in the description, 
and also, because the construction of the antennm, in all the five speci¬ 
mens, is remarkable and altogether different from that of any other 
species of Nomada known to me, i. e., the scape is cylindrical and 
very robust, the fourth joint of the antennm is almost as long as the 
