460 AUSTRALIAN STUATIOM YIDJE 



along the sides, 1-75 wide; scutellum bluntly rounded behind, the 

 whole thorax lightly clothed with short pale hairs. 



Legs : fore legs with coxa?, trochanters and tarsi pale strami- 

 neous, distal half of femora and proximal halt of tibiae suffused 

 with brown, the remainder pale stramineous, mid legs similar, 

 with entire tibiae blackish; hind legs, coxae and distal half of 

 femora blackish; tibia? and tarsi pale stramineous suffused with 

 brown. Wings pale smoky, veins and pterostigma dark brown; 

 venation as shown in Fig. 6V. 



Text-fig. 6c. 

 Sargus gsdli, n.sp. , female. 



Abdomen about as wide as head, parallel on the sides, posterior 

 margin of segments bordered with short white hairs. Genitalia 

 prominent. 



II ah.— Northern Territory: Bathurst Island, October, 1916. 

 Type unique. 



Named in honour of Reverend Father Gsell, whose hospitality 

 and cordial assistance are freely extended to visitors to tins 

 locality. 



The intense colouring of this species renders it a conspicuous 

 object. Hitherto the genus has been known in Australia by only 

 one described species, S. meridional^ White. There are one or 

 two additional species in the Australian Institute of Tropical 

 Medicine, Townsville, from North Queensland (Kuranda). 



Subfamily PACHYGASTR1N.«. 

 Wallacea darwini, n.sp. (Figs. 7a, lb, 7c). 

 9. Total length, 4-25; wing, 4. 



Head, thorax, abdomen, femora, tibia? black; tarsi, wing, veins, 

 pterostigma, antenna? ochraceous; wings hyaline. 



