Aculeate Hymenoptera in Oxford Musewm. 533 
preapical tooth on their inner edges ; clypeus rounded anteriorly, 
flat with a small shining tubercle at base. Antennae: 2nd joint 
of the flagellum twice as long as the 3rd, 3rd and 4th subequal ; eye 
rounded, convex, the vertex arched, the sides of the head behind 
the eyes well developed. Thorax elongate, broader anteriorly than 
posteriorly, the sides slightly crenulate, above closely and coarsely 
punctured, the punctures running into longitudinal striae or fine 
grooves, posteriorly obliquely sloped ; the sides of the median seg- 
ment carinate ; the pleurae smooth, legs shining, intermediate and 
posterior tibiae with a single row of short distant spines ; calcaria 
short, yellowish-white. Abdomen sessile, ventral carina of the 
basal segment feebly emarginate as in the ¢; 6th segment convex 
without a pygidial area. 
Length 2 8 mm. 
13. MUTILLA ALECTO, Smith. 
Mutilla alecto, Sm., Cat. Hym. B.M., iii, 1855, p. 17 3; 
André, Wytsman’s Gen. Ins. Hym., Fasc. 11, 1903, 
p- 35. 
Guinea ¢ (Coll. W. W. Saunders). Natal ? g (Coll. 
W. W. Saunders). 
14, MUTILLA LEUCoPYGA, Klug. 
Mutilla leweopyga, Klug, Symb. Phys., 1829, dec. 1, pl. 4, 
fig. 10 2; André, Zeits. Hym. Dipt., ui, pt. 1, 1902, 
p.. 22: 
Mutilla opaca, Lep., Hist. Nat. Hym., iii, 1845, p. 624 2%. 
Mutilla persephone, Pér., Ann. S.A. Mus., i, 1898, p. 69; 
id. tom. cit. 1899, pl. 8, figs. 11, 13 2 @. 
Natal ? (Coll. W. W. Saunders). RHODESIA: Mashona- 
land, Salisbury 5000 ft., and Buluwayo 2 2 (G. Marshall). 
15. MurILLaA CYTHERIS, Péringuey. 
Mutilia cytheris, Pér, Ann. S.A. Mus., i, pt. 2, 1899, 
p. 372 g. 
RuopeEsIA: Mashonaland, Salisbury 5000 ft. ¢ (4. 
Marshall). 
The two succeeding forms have, so far as I can make 
out, not been previously described. Both so closely 
resemble Dolichomutilla guineensis, Fabr., that they might 
easily be mistaken for that form; both belong, however, 
TRANS. ENT. SOC. LOND. (1911).—PART UI. (JAN.) NN 
