[Proc. Roy. Soc. Victoria, 24 (N.S.), Pt. II., 1911.] 



Art. XVII. — Some Neiv Australian Gicadidae. 



By HOWARD ASHTON. 



(With Plates XLIX-LI.) 



[Read 11th September, 1911.] 



For most of the- material from which the following neiv 

 species of Cicadidat are described, I have to thank Mr. F. P. 

 Dodd (Queensland) and Mr. H. Elgner, of the same State. 

 Amongst them it will be noticed is a new species of C yclochila 

 from Queensland, and also a species of Prasia, a genus so far 

 unrecorded in Australia, though common in New Guinea. I 

 have had some difhculty in deciding upon the generic deter- 

 mination of Pmltnda pulchra, as* it has strong affinities with 

 Thopha in the structure of the head and the proportions of the 

 tegmina and wings. The abdomen, however, is unadorned with 

 the sacs which hide the t^nnpana in the division Thopharia, 

 so I have placed the species tentatively in the genus Psaltoda. 

 The types of all these species are in my collection. 



Sub-family Cicadinae. 



Division Gyclochilaria. 



Cyclochila laticosta, sp. nov. 



Similar in colour and size to ( '. australaslae, Douov, from 

 which it differs chiefly in the innnense breadth of the tegminal 

 costal membrane, which is as wide as the radial area. The 

 front is far less prominent than in Donovan's species, the mem- 

 branous margins of the tegmina and wings very much nar- 

 rower, the opercula broader, not sinuate on the exterior mar- 

 gins and more obtusely rounded posteriorly. 



Long, (excluding tegmina) - c^ 44 2 41 mm.; exp. teg. 

 ^ 125 ? 122 mm. 



ZTaft.— Queensland (Evelyn Scrub), Mr. F. P. Dodd. 



