Aculeate Hymenoptera in Oxford Museum. 543 
covered with silky pale yellow hairs. There are besides many scat- 
tered whitish yellow erect hairs on the head posteriorly, on the sides 
of the median segment, on the basal segment of the abdomen, and 
on the apical three or four ventral segments. Abdomen above with 
two large rounded spots transversely on the 2nd segment and broad; 
medially broadly interrupted, bands of silky short white pubesence 
on the 3rd and 4th segments. Wings fuscous the terminal margins 
broadly and costa narrowly of the forewings darker fuscous. Head 
densely punctured, much broader than long, but much narrower 
than the thorax anteriorly, the face flat, slightly concave, not much 
developed behind the eyes, obliquely rounded. Mandibles and 
clypeus highly polished, smooth, the former acute at apex with a 
strong inner preapical tooth ; eyes elongate strongly emarginate on 
the inner side above; antennae opaque, 2nd and 8rd joints subequal. 
Thorax massive anteriorly, the pro- and mesonotum and scutellum 
closely and coarsely punctured, the tegulae smooth and shining ; 
mesonotum with three longitudinal short carinae, the middle carina 
the longest, and a deep longitudinal groove on either side, these 
grooves not extended to the anterior margin of the mesonotum; 
scutellum with a short longitudinal carina raised into a tubercle at 
apex ; median segment coarsely reticulate, the sides sharply carinate, 
the posterior face sloping to the apex ; wings: forewing with three 
cubital cells; legs without spines. Abdomen subsessile, coarsely 
punctured, the 2nd segment with a central smooth unpunctured 
highly polished area, 
Length ¢ 17mm. Exp. 33 mm. 
Resembles in colouring Mutilla purpurata, but the 
markings on the abdomen are quite different, and more- 
over it belongs to a different genus or subgenus. 
33. DASYLABRIS NYCTIMENE, Péringuey. 
Mutilla nyctimene, Pér., Ann. S.A. Mus., i, 1898, p. 91 %. 
Dasylabris nyctimene, André, Wytsman’s Gen. Ins. Hym., 
Fasc. 11, 1908, p. 67. 
RHopESIA: Mashonaland, Salisbury 5000 ft. f (G4. 
Marshall.) 
34. DASYLABRIS MEPHITIS, Smith. 
Mutilla mephitis, Sm., Cat. Hym. B.M., iii, 1855, p. 21 9. 
Dasylabris mephitis, André, Zeits. Hym. Dipt., 1901, 
posi2 2. 
NataL: Durban ? (fF. Muir). 
