Aculeate Hymenoptera in Oxford Museum. 537 
This remarkable form has the appearance of a Dasy- 
labris, but the emarginate eyes and tridentate mandibles 
do not allow of its being entered under that genus. The 
shape of the head and the multicarinated median segment 
serve to distinguish it from all African forms of Mutilla 
known to me. 
20. MUTILLA IPHONOE, form n. 
Nata (Coll. W. W. Saunders). 
2. Black, basal two-thirds of the mandibles, antennal tubercles, 
apex of scape, basal two joints of the flagellum of the antennae and 
the thorax dorsally and on the sides red. Head, thorax and abdomen 
covered with sparsely scattered erect yellowish hairs, the basal 
abdominal segment with an apical triangular patch in the middle 
above the 2nd, 3rd and 6th segments with dorsal, and the 2nd to 
the 6th segment with ventral bands or fringes of similar pubescence. 
Head subquadrate broader than long and a little broader than the 
thorax, very closely and somewhat coarsely punctured ; mandibles 
somewhat obtuse at apex, antennal tubercles rounded, prominent; 
eyes placed rather forward equidistant from the occiput and the base 
of the mandibles, head well developed behind the eyes. Thorax 
rectangular not broader or narrower posteriorly than anteriorly 
above coarsely punctured the sides crenulate, the pronotum slightly 
arched in front ; the median segment abruptly truncate, the posterior 
angles above well marked the margin with a row of five pos- 
teriorly-pointed long spines in the middle and two much shorter 
ones on each side at the angles. Abdomen more finely punctured 
than the thorax, basal segment short, with its ventral carina deep 
and incised in the middle, Ist to the 6th segment smooth along 
their bases, sparsely punctured along their posterior margins, the 
pygidial area well defined very firmly punctured. 
Length 9 9 mm. 
Described from a single example. 
21. MUTILLA LYSIPPE, form n. 
RHODESIA: Eastern Loangwa District, Petauké 2400 
ft. 2: Feb. 22, 1905 CS. A. Weave). 
9. Head, legs and abdomen black, thorax dark red. Head, 
thorax and abdomen covered with sparsely scattered erect black 
hairs, the abdomen in addition with close thick recumbent black 
pile, two small spots transversely on the 2nd segment above, a band 
on the 3rd segment above, long fringes on the 2nd to the 6th ventral 
