142 SPOLDIA ZEYLANICA, 
The male closely resembles S. ocdipus, Cam., but has no central 
spine on the posterior margin of the median segment. The ocelli 
are present though small, and are not absent as stated by M. André. 
The genus Spilomutillais not rich in species, and seems to be confined 
to Southern Asia. While agreeing with Bingham that M. ocdipus, 
Cam., may well be regarded as the male of M. rothneyi, Cam., I 
consider that his suggestion that the wings have been accidentally 
lost is quite wild, as Cameron has pointed out. The name ocdipus 
has priority over rothneyi, and should be used for the species. 
Mutilla cotesit, Cam., which I have not seen, appears to belong 
to Spilomutilla, but there is no mention in the description of spines 
on the sides of the thorax. I consider that consolidata, Cam., 1s 
a synonym of e/fola. 
Hab.— Colombo (Wickwar) ; Hambantota (Fletcher). 
Genus Mutilla, Linn. 
Key to the Species of Mutilla described here. 
1.—Posterior margin of the thorax with a row of acute spines :— 
A. Second dorsal segment with a spot 
of white pubescence on each side ; 
third and fourth segments with 
bands of white pubescence. 
(a) The bands on the third and fourth 
segments partly interrupted in 
the middle ; head red .. M. ianthas. 
(b) The bands on the third and fourth 
segments continuous; head 
usually black... .. M, bainbrigger. 
Bb. Second dorsal segment immaculate .. M. porcella. 
I1.—Posterior margin of the thorax without spines :— 
A. Second dorsal segment of the abdo- 
men immaculate. 
(a) Second dorsal segment longitudinal- 
ly rugose-striate ; thorax scarcely 
broadened posteriorly. 
a, Second dorsal segment almost as 
broad in the middle as long .. MW. pinguicula. 
b!. Second dorsal segment much 
narrower in the middle than 
long “* .. M. fumgatia. 
(6) Second dorsal segment punctured ; 
thorax much breadened pos- 
teriorly <2 .. M. thermophila. 
