64 STUDIES IN AUSTRALIAN ENTOMOLOGY. 



ambiguus) are of a very distinct type confined to West and North 

 Australia ; the remaining species, P. gracilis, is an isolated species 

 ranging from Bathurst, N. S. Wales, to South Australia. 



Cerotalis (5 species), two are from south-western Australia, of 

 one the exact habitat is unknown ; one is said to be from Victoria ; 

 the last is from the Dawson River, Queensland, and is very distinct 

 from the others. 



Adotela (14 species) seems to be found over most of the 

 Australian continent, except the south-east. On the eastern side 

 of the continent, Gayndah in Queensland is the furthest south 

 that the genus is known to extend ; inland a species is found on 

 the Darling River ; on the south coast Wallaroo, S.A., is the most 

 easterly point from which a species is recorded. 



Gnathoxys (14 species) has no species recorded from Queensland 

 or Victoria. In N. S. Wales two species are found (G. tessellatus is 

 found about Sydney) ; South Australia has four species recorded 

 from it. The other eight species are distributed between King 

 George's Sound, Swan River, and Port Essington. 



Brithysternum calcaratum, the only species of the genus, is 

 from Peak Downs, Queensland. 



Eurylychnus (3 species) is peculiar to the mountains of south- 

 east Australia, its range extending from the Shoalhaven River, 

 N. S. Wales, to the Otway Ranges, Victoria. 



Percolestus blackburni, the only species of the genus, is an 

 isolated form from the mountains at the source of the Ovens 

 River, Victoria. 



Percosoma (4 species) has two species in Victoria and two in 

 Tasmania. The species from the mainland are closely related 

 and differ greatly from those of Tasmania, the latter also being 

 nearly related to each other. 



Lychnus (2 species) is peculiar to Tasmania. 



It may be noted that the last three genera are more nearly related 

 to the New Zealand types of Broscini than to the other Australian 

 genera. All the species of Broscini found in Australia are 

 apterous. 



