8 P. Cameron: 
Antennae slender, almost double the length of the body, densely 
covered with stiff pubescence. Face closely punctured, keeled down 
the centre, densely covered with white pubescence; the front and 
vertex smooth, bare, shining. Palpi long, whitish yellow. Thorax 
smooth, the middle of propleurae obscurely, the base of mesopleurae, 
the lower longitudinal mesopleural furrow and the apex narrowly, 
erenulated. Metanotum on either side of the central keel smooth, 
the rest and the pleurae irregularly rugose. Abdomen smooth, the 
1°* segment strongly longitudinally striated, the central stria stronger 
than the others. 
Pentapleura? flavipes sp. nov. 
Black, smooth and shining, the antennal scape, mandibles, 
palpi, tegulae and legs, yellow, the hind tibiae and tarsi slightly 
infuscated; wings hyaline, the stigma and nervures fuscous; the 
basal joints of the flagellum and the ventral surface of abdomen 
rufo-testaceous. There is a longitudinal furrow on the centre of the 
basal half of the metanotum; at its apex is a stout transverse keel, 
the part beyond which is irregularly reticulated. Antennae twice the 
length of the body, the flagellum densely covered with whitish pubescence ; 
there are at least 56-joints: the apical are broken off. The basal 
abscissa of the radius is very short, not one sixth of the length of 
the 2”d:; the 34 is twice the length of the basal two united; the 2”4 
is obliquely sloped; the 2” cubital cellule is narrowed towards the 
apex, where it is not much more than half the width of the base; 
the transverse median nervure is received beyond the transverse 
basal; the recurrent is received in the base of the 2»4 cubital 
cellule ; the discoidal nervure is united to the recurrent ; the 2"4 discoidal 
cellule is open at the apex below; the 2”4 transverse cubital ner- 
vure is very faint throughout. Mandibles bidentate, the left with 
the outer tooth long, curved and somewhat sharply pointed; the 
riecht has the outer tooth bluntly rounded and not much longer than 
the second; that is as seen from the inner side; seen from the 
outer the left has a long conical, about 3 times longer than wide 
and with the apex bluntly rounded tooth; the lateral are short, 
hardly projecting and bluntly rounded. d. 
Length 4 mm. 
Toneking (Fruhstorfer). 
The 1° abdominal segment is black, is longer and narrower 
than the 2" and has prominent spiracles; the other segments are 
