1925 ] New N emestrinidce from Rhodesia and New Guinea 
5 
on the front, longer on the face and posterior orbits, and very 
long and dense on the cheeks. Dorsum of thorax with moder- 
ately long and rather sparse., erect, black pile; scutellum with 
similar, but somewhat longer, black hair, except behind its 
posterior margin, where the pilosity is greyish white; sides and 
ventral face of thorax densely covered with long, soft, greyish 
white hairs, which extend as a distinct white stripe above the 
base of the wing. Abdomen dorsally with sparse and short, 
erect, black pile; at the base and along the hind margins of the 
segments there is a mixture of greyish white hairs; ventrally the 
pilosity is longer, den'ser, greyish white, and generally appressed. 
Coxae and femora with long, greyish white hairs; the pilosity of 
the tibiae and tarsi extremely short, black; the longer setae at 
the tip of the tibiae also black. Except where the pilosity is very 
long and dense, the integument is covered with a dull, ashy grey 
bloom; on this, one may see, in the proper light, two wide, 
longitudinal stripes of blackish pruinescence in the anterior half 
of the thoracic dorsum, on each side of, and close to, the middle 
line. Brownish black pruinescence also forms a row of median, 
rounded, dull spotb on the second, third, and fourth abdominal 
tergites; each spot being located close to the anterior margin. 
In the female I have seen, these spots are quite well marked. 
Head large, flattened, much broader than the thorax; 
semi-elliptical in profile; kidney-shaped and nearly one and 
one-half times as wide as high when seen in front. Front rather 
narrow, widest at the insertion of the antennae, where it measures 
about half the width of the eye; the inner orbits converge dis- 
tinctly toward the aiiterior ocellus, wheire the front is only half 
as wide as at the antennae. Vertex nearly parallel-sided. Ocellar 
protuberance elongate and low, but slightly separated from the 
inner orbits, with a transverse, saddle-shaped depression in the 
middle; ocelli placed in an isosceles triangle, the posterior ocelli 
being only about half as far from each other as from the an- 
terior ocellus. Eyes bare. Antennae short, small, placed on the sides 
of the face, close to the inner orbits; basal segment subcylin- 
drical, slightly longer than wide, broadly truncate and some- 
what emarginate at apex; second segment nearly as long as 
wide, about two-thirds the length of the first, squarely truncate 
