218 P. CAMERON, HYMENOPTERA OF THE DUTCH EXPEDITION 
Calcaria and tarsal spines black. The upper part of the meso- 
pleuræ at the base distinctly projects. 
The d has the thorax more opaque and more closely and 
strongly (including the mesonotum) punctured all over; it is 
also densely covered all over with black pubescence. The 
mesopleuræ, before the tegulæ, project more distinctly, the 
upper part being distinctly separated from the lower, pro- 
jecting over it. Clypeus opaque, sparsely punctured and haired ; 
its apex is broadly rounded. 
Dielis formosa Guérin, var. maculiceps Cam. 
What is probably a variety of this Australian species is in 
the collection from Merauke. It has the 2"d and 3" abdominal 
segments entirely and the greater part of the 4!" and 5 pale 
orange-yellow, the 244 segment with 2 and the 3'¢ with a 
larger oblique, somewhat pyriform black mark on the sides. 
There is a curved transverse mark on the vertex close to the 
eyes of a pale orange colour, and there isa similarly coloured 
line behind the eyes. The apex of the clypeus is pale orange- 
yellow. Legs black, the hair long and pale, the spines and 
calcaria pale rufous; the inner spur of the hind tibiæ is 
much longer than the outer and ends in a dilated point. The 
hair on the occiput, pro- and mesonotum and scutellum is 
bright red; on the rest of the head and thorax it is pale 
fulvous, almost white. The abdominal segments are smooth ; 
the last is thickly covered with long black hair. 
Dielis Tecineta Fab. ? 
There is a single d of what is probably the above species. 
The elypeus, except for a triangular black mark in the centre, 
the narrowed end above; the lower half of the outer orbits, 
the mark narrow above, becoming gradually wider below and 
extending below the eyes, the fore legs and the 4 hind tibiæ 
