26 HYMENOPTERA. 
hairs, the apical ones with black hairs; the apical margins of 
the four basal segments fringed with pale pubescence. 
Hab. North-west coast of Australia. 
147. MuTILLA PERPLEXA. B.M. 
Female. Length 53 lines.—Black, coarsely rugose, the vertex 
covered with pale yellow pubescence, the scape covered with pale 
pubescence. Thorax slightly narrowed posteriorly, and thinly 
sprinkled over with long black pubescence, the legs thinly 
covered with glittering pale hairs; the intermediate and poste- 
rior tibiz armed exteriorly with stout acute spmes. Abdomen: 
the base thinly clothed with pale pubescence, a patch of the 
same in the middle of the second segment, its apical margin 
also fringed with pale pubescence ; the fourth and fifth segments 
have also a little patch of pale pubescence in the middle on their 
apical margins; the entire abdomen above, particularly towards 
the apex, sprinkled with long black hairs ; the margins of the 
segments beneath fringed with glittering silvery pubescence. 
Hab. Australia (North-west coast). 
148. MuTILLA RUBELLA. B.M. 
Female. Length 7 lines.—Obscurely red; the antenne, eyes, 
legs and breast nearly black; the entire insect coarsely rugose ; 
a patch of golden-coloured pubescence on the vertex ; the ante- 
rior angles of the thorax acute, the sides unarmed ; posteriorly 
narrowed, the sides compressed ; the legs have a scattered pale 
pubescence beneath; the intermediate and posterior tibie fur- 
nished with a row of sharp spines exteriorly, which are intermixed 
with black pubescence; the tarsal joints spose at their apex, 
and having a mixture of dark and pale pubescence, most sparing 
on the anterior pair; the thorax above as well as the abdomen 
thinly clothed with black pubescence ; the latter having a spot 
at the apex of the basal segment in the centre, an elongate patch 
down the centre of the second, occupying a deep depression, a 
spot on its apical margin, as well as on those of the three fol- 
lowing, of golden-coloured pubescence. 
Hab. North-west coast of Australia. 
149. MuTILLA VENUSTA. B.M. 
Female. Length 5 lines.—Black, head and thorax closely 
and coarsely punctured, the tubercle at the base of the scape, a 
spot at the base of the clypeus, and the middle of the mandibles 
red; the thorax above and a large ovate macula on each side of 
the second segment of the abdomen red; the anterior margin of 
