Studies in Australian Lepidoptera, 33 



Fam. NOCTUIDAE. 

 Subfam. AGARISTINAE. 



Gen. Prostheta, nov. 



Frons with a truncate conical prominence, at its apex a large cir- 

 cular depression with raised edge. Antennae dilated before apex. 

 Palpi moderate, porrect; second joint covered with long, rough hairs; 

 terminal joint short, hairy. Thorax and abdomen (?) not crested. 

 Posterior tibiae with long rough hairs on dorsum. Neuration normal. 



Intermediate in structure between Periscepta, Turn., and 

 PhalaenoideSj Lew., agreeing with the former in the palpi, with the 

 latter in the antennae. I will not be sure of the absence of abdominal 

 crests, as the type is not in the best condition. Specifically it is 

 very different from species of both these genera. 



Prostheta acrypta, n. sp. 



^ 22 mm. Head blackish with lateral whitish streaks. Palpi 

 blackish, towards base whitish; apex of second joint whitish. Thorax 

 [abraded] blackish with whitish spots. Abdomen blackish with some 

 whitish scales; a basal dorsal spot and tuft pale-ochreous. Legs 

 blackish; tibiae and tarsi with whitish annulations; hairs on posterior 

 tibiae ochreous. Forewings triangular, costa gently arched, apex 

 round-pointed, termen bowed, slightly oblique; blackish with some 

 whitish irroration and whitish-ochreous spots; a minute subcostal 

 basal spot; a subcostal spot near base with another obliquely beyond 

 it in disc; a spot beneath 1/3 costa, with another obliquely beyond it 

 in disc; a spot beneath 2/3 costa, with another close beneath it; 

 a series of subterminal spots, those in middle smaller; cilia blackish, 

 on tornus white. Hind wings with termen rounded; orange-ochreous; 

 a blackish discal spot on costal side of middle; a broad blackish ter- 

 minal band containing a series of subterminal whitish spotp; cilia 

 blackish, mixed with whitish. 



Type in South Australian Museum. 



S.A., Tumby ; one specimen. 



Subfam. AGROTINAE. 



Agrotis poliotis, Hmps. 

 Agrotis hromeana^ Auriv., Arkiv. f. Zool., Stockholm. Band 

 xiii., p. 16, T. i, f. 6. N.W.A., Broome. 



A $ example admirably figured. 



Subfam. MELANCHRINAE. 



Dasygaster pammacha, n. sp. 

 5 23-24 mm. Head brownish with a few blackish scales; face 

 paler with a pair of blackish spots above middle. Palpi slightly over 

 1; brownish with some dark-fuscous Irroration. Thorax brownish- 

 grey with a few blackish scales. Abdomen grey-brownish; densely 



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