of Australian Pyralidina. 77 



20. Scenedra (?) externalis, Walk. 



Curena externalis, Walk., Brit. Mus. Cat., Suppl., 

 1253. 



$ , 18 mm. Head, antemias, thorax, and abdomen dull purplish 

 ochreous. Palpi and legs dark purplish fuscous ; a patch of snow- 

 white scales behind middle pair of legs. Fore wings triangular, 

 rather elongate, costa gently sinixate in middle, abruptly arched 

 towards apex, apex obtusely angulated, hind margin hardly oblique, 

 rounded beneath; Ught ocln-eous, purplish-tinged, becoming ashy 

 whitish posteriorly, with scattered dark grey scales ; a curved 

 faintly double dark gi-ey line from one-third of costa to one-third of 

 inner margin ; a dark grey discal dot ; a dark gi-ey slightly inwards- 

 curved Une fi'om three-fourths of costa to anal angle, beyond which 

 the hind marginal area is purplish grey, becoming deep reddish 

 towards upper anterior angle ; cilia grey-whitish, with two dark 

 grey lines, first suffused with purple-carmine. Hind wings purplish 

 ochreous, deeper towards hind margin ; base suffused with grey ; 

 three grey slightly- ciurved lines forming a moderately broad median 

 band ; cilia as in fore wings. 



Sydney, New South Wales. One specimen in December. 



Endotricha, Z. 



Characterised by the peculiarly elongated patagia of 

 the male, and the absence of maxillary palpi. The 

 genus is a good and natural one, but there is some 

 variation in the neuration ; vein 1 of the fore wings is 

 simple in E. pyrosalis and E. flammealis, but minutely 

 furcate in E. puncticostalis, and perhaps in other species. 

 The affinity of the species is correctly indicated by the 

 structure of veins 4 and 5 of both wings ; in E. heliopa 

 they are separate, in E. pyrosalis very shortly stalked, 

 in E. flammealis and E. puncticostalis moderately stalked, 

 and in E. <2tliopa long-stalked. The patagia are shortest 

 in E. heliopa and longest in E. csthopa. The genus seems 

 characteristic of India, the Malayan Islands, and Eastern 

 Australia. Snellen has described a species from Celebes 

 which I have not seen, but which is allied to E. puncti- 

 costalis, and there are several others in the British 

 Museum unrecognised. E. mesenterialis. Walk., from 

 Ceylon is closely allied to E. puncticostalis. 



