536 Col. C. T. Bingham on South African 
This form has ee resemblance to JZ. alcyone, 
Péringuey (suspected by Péringuey to be the 2 of JZ. 
exaltata, Smith) in the red-colouring of the thorax which 
is confined to the dorsal face. In alcyone, however, the 
basal abdominal segment has an apical whitish patch, the 
2nd segment a spot or ovate patch in the centre, and the 
3rd and 4th segments similarly coloured bands. In ad- 
dition, the shape of the head and the ventral carina on 
the basal abdominal segment are quite different. 
19. MUTILLA CRISTATA, form n. 
RuopesiaA: Mashonaland, Salisbury 5000 ft.: Nov. 1903 
(G, Marshall). 
g. Totally black and covered with a sparse clothing of erect 
white hairs which on the abdomen form slight but distinct fringes 
to the apical margins of the segments ; on the legs the white hairs 
are rather more dense especially on the outside of the tibiae of the 
intermediate and posterior legs, the calcaria of which are also white ; 
wings hyaline at base then gradually infuscate and on the forewings 
with a sharply marked broad terminal fuscous margin that has in 
certain lights a rich purple effulgence. Head broader than long, 
slightly broader than the thorax in front, vertex behind the ocelli 
raised into a blunt cone-shaped prominence, eyes oval deeply 
emarginate, head behind the eyes moderately developed ; mandibles 
very broad towards the apex, tridentate ; antennae moderately stout, 
Ist joint of the flagellum short, 2nd a little longer, 3rd slightly 
longer than the 2nd. Thorax moderately long more or less rect- 
angular, prothorax sharply truncate in front, mesonotum short, 
convex ; scutellum longer than broad rounded posteriorly ; median 
segment roundly oblique and declivous; forewings with two well- 
marked cubital cells, the 3rd cubital cell faintly traced ; legs slender 
the tibiae without spines. Abdomen long, the basal segment petio- 
late at base nodose at apex, the 2nd segment broadest in the middle, 
the others decreasing gradually to the 7th. Head and thorax closely 
and very coarsely punctured cribrate; median segment with six 
somewhat irregular longitudinal carina, the middle two of which 
do not extend to the apex, the intervals between the carina coarsely 
reticulate. Abdomen finely, closely and regularly punctured except 
on the node of the basal segment where the punctures are large 
and coarse, ventral carina of this segment very slight trifid towards 
the apex. 
Length ¢ 12mm, Exp. 20 mm. 
Described from a single example. 
