18 HYMENOPTERA. 
and two impressed lines on each side, touching the posterior, but 
not extending to the anterior, margin; the metathorax covered 
with large shallow punctures and rounded at its lateral margins ; 
wings dark brown, and having a purple iridescence. Abdomen 
shining, finely and distantly punctured, its extreme apex slightly 
ferruginous. 
Hab. Sierra Leone. (The Rev. D. F. Morgan.) 
115. Murinua Pyruta. B.M. 
Female. Length 63 lines.—Head and abdomen black, thorax 
ferruginous ; head coarsely rugose, swollen behind the eyes, the 
hinder angles rounded; the margin of the vertex, cheeks, and 
parts of the mouth have a thin griseous pubescence, the front 
sprinkled with erect short black hairs. Thorax oblong-quadrate, 
very coarsely longitudinally rugose ; the lateral margins of the 
metathorax denticulate; the mtermediate and posterior tibie 
have externally a double row of short spines, the legs thinly 
clothed with a pale glittermg pubescence. Abdomen thinly 
clothed with black pubescence ; the three basal segments have 
on their apical margins a fascia of glittering yellowish-white 
pubescence ; the second segment beneath is transversely elevated 
in the middle and armed with three blunt teeth. 
Hab. Port Natal. 
116. Muritua CepHeus. B.M. 
Female. Length 6 lines—Head and abdomen black, thorax 
ferruginous, the head and thorax very coarsely rugose, the head 
rather wider than the thorax, rounded behind; thorax oblong- 
quadrate, slightly narrowed behind ; the legs have a sparing pale 
glittering pubescence, that on the tarsi beneath brown. Abdo- 
men longitudinally rugose, the basal segment has on each side 
an oblique patch of glittering yellowish-white pubescence; the 
third segment is covered with pubescence of the same colour in- 
terrupted in the middle. 
Hab. Port Natal. 
117. Murttua ACHERON. B.M. 
Male. Length 10 lines.—Entirely black, the eyes emarginate, 
the head much narrower than the thorax ; the mesothorax having 
a central longitudinal carina and two shorter ones on each side ; 
the metathorax widened posteriorly, and having in the middle a 
longitudinal grooved carina, on each side of which is an irregular 
reticulation ; wings deep brown-black, having a violet indes- 
eence ; the first submarginal cell has a curved transverse hyaline 
