138 
Annals of the T^nsvaal Museuit. 
Length, 23 mm. 
Kranspoort. 'December. 
Third antennal joint not quite twice the length of the fourth ; tarsal 
and tibial spines strong, brownish ; claws unidentate ; the mesopleurae 
are obscurely, obliquely striated below the furrow ; the lower basal part 
of the metapleurae finely, closely, obliquely striated ; the metapleurae 
are tinged with greenish-blue. 
Sphex (Parasphex) albisectus Lep. 
Smith, Cat. Hym. Ins. Brit. Mus., IV, 267 ; Kohl, Ann. Hof. Mus. 
Wien., V, 1890, 334 . 
Kranspoort. November. Taken also at Dunbrody by the Rev. J. A. 
O’Neil. 
Sphex ( Parasphex ) trichionotus, sp. n. 
Black ; the head and thorax densely covered with long grey pubes- 
cence ; the third and following segments of the abdomen with a white 
pile; the seven basal joints of the antennae, the mandibles, except the 
teeth, the tegulae, the dilated apex of the first, the basal three-fourths 
of the second abdominal segment, and the legs, except the coxae, the hind 
trochanters above, and the upper half of the sides, the hind femora above 
and the sides to shortly below the middle, red ; the apex of the sixth and 
the seventh abdominal segment of a duller red colour ; wings hyaline, 
the basal half tinged with fulvous, the middle with violaceous, the apex 
from the end of the radial cellule clouded with fuscous violaceous ; the 
costa and the basal nervures rufo-testaceous ; the apical black ; the 
second cubital cellule in front one-fourth of the length of the posterior 
part ; the second abscissa of the radius two-thirds longer than the third ; 
the first transverse cubital nervure obliquely sloped, the posterior half 
rounded ; the anterior straight and more sharply oblique ; the recurrent 
nervures are received about the same distance from the transverse cubital. 
Male. 
Length, 19 mm. 
Pietersburg. January. 
The apex of the clypeus is red, and has a semicircular incision in the 
middle, with a couple of small depressions on either side ; eyes slightly 
converging below ; mandibles broadly bidentate ; scutellum flat, its centre 
impunctate ; metanotum closely, transversely striated ; in addition to 
the white hair, the head and thorax are covered with a silvery pile ; 
abdominal petiole as long as the hind femora ; the apices of the second 
to sixth segments are narrowly banded with obscure white ; the apical 
ventral segment is gradually narrowed from the base to the apex, which 
is bluntly rounded. 
This is a larger and stouter species than S. albisectus Lep. It is easily 
separated from it by the antennae, legs, and apex of abdomen being red, 
by the incised apex of clypeus, by the second abscissa of the cubitus being 
almost of the length of the third, while in albisectus it is only half the 
length, and the basal half of the wings is tinged with fulvous ; in albisectus 
hyaline like the apex, the nervures and stigma being black throughout 
in the latter. 
