990 P. CAMERON, HYMENOPTERA OF THE DUTCH EXPEDITION 
Etna Bay. 
Salius fervidus Smith. 
Priocnemis fervidus Smith, Journ. Linn. Soc. III, 156; L. c. 
IV, Supp. 120. 
Etna Bay. 
This species was described from Aru. Smith calls the wings 
»fuscus basi subhyalinis« ; in the Etna Bay example they are 
brilliantly blue-violaceous, with the base narrowly yellowish 
hyaline. Apart from the difference in colouration S. fervidus 
(S. ferrugineus has the abdomen coloured like the head and 
thorax and the base of the wings is not yellowish hyaline) 
may be known from the commoner ferrugineus by the longer 
and more slender antennæ, by the more prominent metanotal 
tubercles ; by the 8" transverse cubital nervure being roundly 
curved, not angled and obliquely sloped as in ferrugineus, and 
by the arrangement of the ocelli ; in fervidus they are separated 
from the eyes by twice the distance they are from each other; 
in ferrugineus by the same distance, the vertex between the 
eyes being narrower in the latter species. 
Sphegidæ. 
Sphex umbrosus Christ. 
Merauke. 
Cf. Cameron, l.c. p. 56. 
The specimens agree with the form which F. Smith deseri- 
bed from Australia as Sphex ephippium. I have the latter from 
Brisbane, Australia, identical with the Merauke examples. 
Sceliphron letium Smith. 
Cf. Cameron, l.c. p. 56. 
Merauke. May. 
