- BY R. J. TILLYAKD. 49 



A b d oin e n fairly stout, uniformly shiny dark grey, with pale 

 grey, downy hairs. 



Wings: neuration grey-brown, So speckled. In forewing, 

 along 11 up to pterostigma is a series of very narrow, blackish 

 markings encroaching slightly into sul>costal space: pterostigma 

 l)lackish, covering 7-8 veinlets, all but three of them forked dis- 

 tallv. Along Cuj + M^ runs a thick, somewhat sinuous, longi- 

 tudinal, black band, continued distally across M, to tip of wing. 

 Hind wing without markings, pterostigma weakly indicated by a 

 brownish patch. 



Hab. —Western Australia; also Broken Hill, N.S.W. (O. 

 Lower). 



Type in Coll. West Australian Museum. Label " H. 22," 

 indicating that it was collected by Mr. G. H. Hardy, now of the 

 Tasmanian Museum, Hobart. No date or locality-label. 



The Broken Hill specimen was unfortunately badly damaged 

 in the post; only a small piece of the thorax, and the two wings 

 of tiie right side, hanging by a thread, remain. 



This rare species superficially resembles the commoner Dislo- 

 leoii nigrosu/natns, irom which, however, it can be distinguished 

 at sight bv the fact that the lonoitudinal, black mark is single 

 and continuous, whereas, in Z>. niyrosignatus, it is bi'oken into 

 two. parts. The venations of the two species are, of course, quite 

 distinct. It is somewhat remarkable that there should be, in a 

 small collection of Western Australian forms, representatives of 

 three genera {Protoplectron, Distoleoti, Glenoleon) having this 

 unique development of a longitudinal, black line in the forewing, 

 while, in a fourth {Duadroleon), there is also a considerable 

 development of black pigment. 



3. Photoplectrox eremi^, n.sp. (PI. ii.. fig. 4). 



Total length 19, abdomen 13, forewing 24*5, hiudwing 23mm. 



Head: epicranium grey, with black markings behind and a 

 touch of brown in front; eyes dark grey; antennve 6mm., grejush; 

 face orange-brown, mouth-parts blackish. 



Thorax grey-brown with blackish markings; on prothorax, 

 two, parallel, longitudinal, blackish bands. Leys greyish, very 

 short and thick, hairy. 



