296 Mr. R. E. Turner on Fossorial Hymenoptera. 
segment as long as the mesonotum and scutellum combined, 
with a low carina from the base not reaching the apex, 
transversely striated, distinctly convex, the sides almost 
parallel, longer than broad, vertically truncate posteriorly ; 
the surface of the truncation transversely striated, with a 
median sulcus; the sides of the segment vertically striated. 
Abdomen slightly pruinose, with faint traces of apical fasciee 
of silvery pubescence on tergites 2-4; pygidial area large, 
elongate-triangular, narrowly truncate at the apex, a row “of 
stiff setee on the apical margin. Sternites rather sparsely 
and finely punctured ; second “sternite convex, depressed on 
each side at the base as in the genus Notogonia, ‘'Tarsal 
comb long, four spines on the basal joint of the fore tarsus; 
ungues very long. Recurrent nervures very near together 
on the cubitus ; second abscissa of the radius less than Hate as 
long as the third. 
Hab. Bulawayo, Rhodesia (G. Arnold), December. 
This is very like Notogonia gowdeyi, Turn., but the man- 
dibles are entire as in Liris. It also closely resembles the 
Oriental species of Liris allied to ducalis, Sm. : 
Dimorpha flavipennts, sp. n. 
&. Niger; abdomine rufo-testaceo; segmento basali secundo basi 
late nigro-fasciato; alis flavo-hyalinis, venis ferrugineis. 
Long. 11 mm. 
3. Clypeus and front closely punctured, covered with 
white pubescence. Anterior ocellus situated in a shallow 
depression, larger than the posterior pair which touch the 
eyes. Joints of the flagellum a little widened from the base 
to the apex, the second half as long again as the third. 
Eyes touching on the vertex. Mesonotum and mesopleure 
very closely and not very finely punctured, the punctures 
more or less confluent; scutellum shining, more sparsely 
punctured. Median segment reticulate, with more or less 
indistinct longitudinal strize, the sides of the segment very 
closely punctured. Abdomen smooth and shining; the 
sternites finely and sparsely punctured, and sparsely clothed 
with pale testaceous hairs. Radial cell oblique at the apex, 
long; the fourth abscissa of the radius almost as long as the 
first and third combined ; second cubital cell pointed on the 
radius, first abscissa of the*radius more than half as long as 
the third and twice as long as the distance between the 
recurrent nervures on the cubitus, 
