52 Lieut.-Colonel C. T. Bingham on 
very widely interrupted in the middle; the whole head, the 
pronotum posteriorly, sides of the thorax and of the median 
segment, the outside of the tibiz and tarsi of the four anterior 
legs, the femora, tibize, and tarsi of the posterior legs, and the. 
apical two segments of the abdomen covered mostly with 
rather long snow-white pubescence, turning to rusty yellow 
on the apical margin of the clypeus and on the underside of 
the tarsi; on the apical two abdominal segments it is yellowish 
tipped with black. Head finely and rather closely punctured, 
from the front circular, with the inner orbits of the eyes con- 
vergent anteriorly; face rather flat, with a well-marked 
medial carina, distinct under the pubescence, running from 
the anterior ocellus to the base of the clypeus. Thorax and 
the basal halves of all the abdominal segments finely and 
closely punctured ; mesonotum large, gently convex ; scutel- 
lum transverse, rounded and convex above, with a somewhat 
spoon-shaped mucro on each side; postscutellum with a 
broad concave double mucro at base, projecting backwards 
and overhanging the rest of the postscutellum and the median 
segment. Wings fusco-hyaline, the posterior wings clear 
hyaline at base; nervures dark brown, black towards the 
base ; tegule black. Legs black, the apical joint of the tarsi 
reddish brown. Abdomen massive; segments 1-4 with a 
deeply impressed transverse line, dividing each segment into 
an anterior and posterior portion, the posterior halves smooth 
or minutely rugulose. 
g. Very similar, differing only in having the femora of 
the posterior pair of legs incrassate, somewhat triangular in 
outline, and the tibize strongly flattened, broad, with the 
interior apical angle produced. 
Length, 2 12, ¢ 13; exp., 2? 25, d 28 millim. 
Hab. Two females from Fort Johnston, Nyasaland (Ren- 
dall); the male a solitary specimen in the British Museum 
collection from Abyssinia. 
The bluish-white lateral markings on the abdomen and 
the dark fore with a hyaline hind wing give this insect a very 
Crocisa-like appearance. ‘The neuration of the wings, the 
form of the clypeus and legs, however, are those of the genus 
Nomia. 
Nomia scitula, sp. n. 
g. Black, the scape of the antennee, the apical half of the 
femora, the tibiz, and tarsi of the legs pale yellow; the 
flagellum of the antenne red; the apical halves of the first to 
fifth abdominal segments yellowish or ivory white; the face 
with dense, the rest of the head, the thorax, and a fringe 
