994 P. CAMERON, HYMENOPTERA OF THE DUTCH EXPEDITION 
Odynerus meraukensis sp. nov. 
Black, the antennæ, clypeus, mandibles except the teeth, 
the eye orbits, a large mark in the centre of the front uniting 
to the orange of the clypeus and bifurcating broadly, obli- 
quely above, where the branches reach almost to the front 
ocellus; the hinder eye orbits except on the outer part below, 
the line becoming narrowed to a sharp point below, the pro- 
thorax, except for a band in the middle of the basal slope; 
tegule, scutellums, sides of metanotum broadly, the mark 
dilated on the pleuræ above, the 15 abdominal segment, except 
the basal slope, the mark projecting in the middle above, the 
apex of the 2"4 segment, the whole of the others and the 
legs, except the coxæ, bright orange. Wings reddish-hyaline 
to the stigma, fuscous violaceous beyond it, the stigma and 
basal nervures bright reddish orange. 9. 
Length to end of 224 abdominal segment 12 m.m. 
Merauke. 
Closely, distinctly punctured all over, more strongly on the 
top of the head and of the thorax; on the mesopleure the 
punctuation runs into reticulations, strongly above, more 
weakly below. Clypeus covered with longish punctures; it is 
longer than wide, its lower half flattened in the centre, the 
sides obliquely sloped; the apex with a shallow, rounded 
incision. There is a distinct tubercle between the antenne. 
Apex of pronotum transverse, margined. Post-scutellum rugo- 
sely punctured at the base, the apex smooth, obliquely sloped ; 
the apical margin of the posterior part raised. Metanotum 
with a steep slope; its sides rounded above where they are 
dilated ; the metapleuræ below project into a leaf-like expan- 
sion. First abdominal segment large, cup-shaped, if any thing, 
wider than the base of the 224, which is broader than long. 
The 2nd cubital cellule is much narrowed in front. 
This species resembles in form and colouration some Austr- 
