216 P. CAMERON, HYMENOPTERA OF THE DUTCH RXPEDITION 
at the base, the outer dilated part reaching close to the base 
of the segment; a similar mark on the 3", but with the 
2 basal parts broader and rounder, a transverse mark, reaching 
near the centre of the segment, narrowed in the middle, dilated 
laterally, the inner dilated part larger and broader than the 
outer; a short line on the sides of the 5 segment and 2 
irregular marks of moderate size in its centre; black are: a 
broad irregular line on the occiput, the apex of the propleuræ, 
meso- and metapleuræ, breasts, the lower part of the 15 
abdominal segment, a longish mark of equal width on its 
sides at the apex, similar marks on the apices ot the 229, 
3rd and 4, marks of about the some length, but roundly 
narrowed at the base, on the 3 following segments, except for 
the 2 marks in the centre of the 52, and the ventral surface. 
The antenne, apical two-thirds of the fore femora and all the 
tibiae and tarsi, except the apical joints of the anterior tarsi, 
are rufo-testaceous, the rest of the legs black, except the cal- 
caria which are white. Wings hyaline, the base and the 
anterior parts largely dark fuscous, the costa and stigma 
black, the nervures, except at the base, testaceous. d'. 
Length 14 m.m. 
Merauke. 
Smooth and shining; the middle segments of the abdomen 
sparsely punctured, the 7 strongly, closely longitudinally 
striated, its apex slightly incised in the middle, the sides 
broadly rounded ; there is a strong, sharply-pointed tooth on 
the sides of the 6' ventral segment, the apex of which is 
broadly roundly incised; the hypopygium ends in a long 
spine, which becomes gradually narrowed to a sharp point ; 
there is a smooth, flat keel down its centre; at the base of 
the tooth the segment is transverse; on the sides, at the 
apex, are 2 short, but distinct teeth. There are 2 white spots 
on the 2" ventral segment; the 3"¢ and 4' are indistinctly 
spotted. The 3'4 joint of the antenna is shorter than the 4%. 
