1863.] 
811 
fascia, and the fifth a large quadrate spot, yellow ; sometimes obscurely 
variegated with yellow-testaceous bands or spots beneath. 
Male. Length 3—4^ lines.—'The scape in front, the clypeus^ the 
face on each side, the labrum and mandibles, yellow; the latter ferru¬ 
ginous at their tips; the flagellum ferruginous, four or five of the basal 
joints above, as well as the scape above, black. Thorax black; the 
tubercles, two spots on the scutellum, and the legs rufous; the coxse, 
except at the apex, blackv; the trochanters behind, the anterior and 
intermediate femora beneath at the base, and the posterior pair, except 
a line above, black; sometimes a black line on the tibiae behind. Ab¬ 
domen rufous, the base black, the second and following segments having 
a broad yellow band; the apical margins of the segments rufo-piceous ; 
beneath, the second and following segments have a transverse broad 
yellow macula; sometimes entirely rufous beneath, or varied with in- 
V distinct fuscous bands and yellow spots; the yellow bands on the ab¬ 
domen above are frequently much attenuated in the middle, one or two 
of the apical ones being sometimes interrupted. 
“ It were vain to attempt to describe all the shades of variety in the 
markings of this species, particularly those of the males ; but the most 
prominent are pointed out, and the extremes most commonly met with; 
some of the very small examples of the males have the scape and two 
or three joints of the flagellum nearly black ; the brightness of the ru¬ 
fous coloring also varies considerably, from a deep brick-red to a light 
red; the dark-colored examples have the wings also of deeper hue ; 
the spots on the metathorax of the female are sometimes obliterated, 
or partially so; the spots on the scutellum of the male frequently dis¬ 
appear; and a variety is met with, but rarely, in which the rufous 
spots are replaced by yellow ones/’ 
32. N. armata Schaffer. 
Nomada armata Schaff. <fec. Smith, Zool. vii, Append, p. xlij Ann. Nat. Hist. 
2d ser. iv, p. 438; Bees of Great Britain, p. 130, pi. 1, fig. 5. 
Female. Length 54 lines.—^Head and thorax black: the anterior 
margin of the clypeus, the mandibles and antennas, and sometimes a 
minute dot above the eyes, ferruginous; the scape fuscous, the flagellum 
has the eighth and three following joints fuscous, the apical joint fer¬ 
ruginous ; a minute acute tooth in the centre of the labrum. Thorax : 
a narrow line on the collar, the tubercles, the tegul*, two spots on the 
