288 
[November 
yellowish-white spot, slightly and obtusely indented posteriorly; at the 
base of the second segment a broad yellowish-white fascia somewhat 
attenuated towards the disk and slightly indented on the extreme sides 
and disk anteriorly; at the base on each side of the four following seg¬ 
ments a narrow yellowish-white fascia, slightly attenuated in the mid¬ 
dle and more or less squarely indented on each side posteriorly; apical 
segment dark ferruginous, the tip bifid; beneath dark ferruginous, 
stained with piceous, sometimes with an oblong, pale-yellowish spot on 
each side of the third segment, and another on the apical segment. 
Length 3 Jlines. 
Hah. Mass., Conn. Three specimens. Collection of Mr. E. Norton. 
Sometimes the spots on the first segment are reduced to mere dots, 
and very indistinct; the fascia on the second segment is sometimes 
obsoletely divided by a ferruginous line, and those on the fifth and 
sixth segments sometimes interrupted and broken into four spots. 
6. N. lepida n. sp. 
Male. Head black, densely and finely punctured, thickly clothed 
with whitish hairs; the clypeus, labrum, mandibles and the orbits of 
the eyes on each side of the clypeus, yellow. Antennae as long as the 
head and thorax; black above, flagellum beneath yellowish-ferruginous, 
scape in front yellow. Thorax black, densely and finely punctured, 
thickly clothed with rather long whitish hairs; tubercles yellow, deeply 
notched anteriorly with black ; scutellum rather prominent and slightly 
subbilobate; tegular honey-yellow. Wings hyaline, slightly iridescent, 
apical margins clouded, nervures ferruginous. Legs: coxae except 
tips, trochanters and the anterior and intermediate femora beneath at 
base, and the whole of the posterior tibiae except tips, black, rest of 
femora ferruginous, tipped with yellowish; tibiae and tarsi yellow varied 
with ferruginous. Abdomen minutely punctured, shining, ferrugi¬ 
nous ; basal half of the first segment above black, and the posterior 
margins of the segments with a dark stain; on each side of the middle 
of the first segment an oblong yellow spot having its margins waved, 
especially in front, on the posterior margin of each spot, a small dis¬ 
tinct fuscous dot; at the base of each of the five following segments a 
transverse yellow band, more or less attenuated within and slightly in¬ 
terrupted in the middle with ferruginous, that on the second segment 
broad and slightly indented with blackish on the extreme sides ante- 
