280 
~] 
10. 
ine 
Sculpture of the dorsal surface of the 
median segment almost obsolete, some- 
times with indistinct transverse strim. 
. Median segment with a longitudinal sul- 
cus on the dorsal surface ; ; the lateral 
and posterior margins not sharply 
defined. 1200. Wea cect wea 
Dorsal’ surface of the “median segment 
without a sulcus, the sapiens sharply 
Gennede. acne aes «Eppes ei cape 
Comb of the fore tarsi long, the spines 
strongly spatulate .......... eects 
Comb of the fore tarsi short ..... 
. The whole mesonotum densely clothed 
with golden pubescence ............ 
Pubescence of the mesonotum sparse, 
except on the sides, not golden...... 
. Wings with a broad fuscous fascia across 
the middle, the apex also fuscous, 
leaving a hyaline lunule; the fuscous 
band sometimes extending to the base. 
Wings fusco-hyaline or hyaline........ 
. Fourth abscissa of the radius distinctly 
shorter than the second and third 
combined; apical truncation of the 
radial cell broad, oblique or straight . 
Fourth abscissa of the radius at least as 
long as the second and third com- 
bined ; apical truncation of the radial 
cell narrower, never oblique ........ 
. Truncation of the radial cell oblique ; 
distance between the recurrent ner- 
vures on the cubitus almost equal to 
the second abscissa of the radius .... 
Truncation of the radial cell straight ; 
recurrent nervures almost meeting on 
ihe! CubibiS: ':¥.4,. canis Aen eee ee 
. Second joint of the flavellum distinctly 
shorter than the third; apical joint 
of the tarsi ferruginous ............ 
Second joint of the flagellum at least 
equal to the third ; apical joint of the 
tarsi never ferruginous above ...... 
The depression on the middle of the an- 
terior margin of the mesonotum very 
broad, extending posteriorly beyond 
the middle of the segment.......... 
The depression on the middle of the an- 
terior margin of the mesonotum not 
very broad; not nearly reaching the 
middle of the seement ............ 
Distance between the eyes on the vertex 
not more than half as great again as 
the length of the first joint of the fla- 
gellum ; median segment no longer 
Mr. R. E. Turner on Fossorial Hymenoptera. 
N. abbreviata, Turn. 
4, = 
N. spathulifera, Turn. 
5. 
N. chrysonota, Sm. 
6. 
N. regina, Turn. 
. 
N. obliquetruncata, Turn. 
N, recondita, Turn. 
N. agitata, Turn. 
10. 
N. serena, Turn. 
#1. 
, 
