280 



In fhe absence of the hindlegs I cannot be sure that this is 

 a Crypsipliona, but the total absence of abdominal crests 

 makes it probable. 



Western Australia: Cunderdin, in October, one male 

 received from Mr. R. lUidge; Mount Barker, one female 

 (L. J. Newman). 



Gen. PiNGASA, Moore. 



Differs from Terpna in having crests of scales on upper- 

 surface of hindwings. The distinction seems natural and 

 tenable. So far I agree with Prout, but cannot follow him 

 in separating from it a new genus Hypodoxa; the former 

 with cell of hindwings short, scale-tuft at its end ; the latter 

 with cell normal, scale-tuft before its end. I have carefully 

 noted (without actual measurement) the comparative length 

 of the cell of the'hindwing in seven Australian species. The 

 dorsal edge of the cell is longer than the costal, and I have 

 made my comparisons from the length of the costal edge. 

 In chlora it is about f ; in cinerea between f and ^ ; in 

 emiliaria^ muscosaria, myriosticta, and erehata about \ ; in 

 deteriorata about f . These differences and slight variations 

 in the position of the scale-tufts appear to me to be of specific 

 value only. 



Type P. ruginaria, Gn., from India and Africa. 



PiNGASA MUSCOSARIA, Gu. 



This species varies much according to locality. It would 

 be easy to distinguish local races or subspecies, probably a 

 longer series will show these to be connected by intermediate 

 forms. 



PiNGASA ACUTANGULA, Warr. 



$ , 42-46 mm. Head brownish, on sides whitish. Palpi 

 rather long, ascending; terminal joint as long as second joint, 

 porrect; whitish. Antennae fuscous, towards base fuscous- 

 whitish. Thorax whitish with a central biownish suffusion. 

 Abdomen whitish suffused with fuscous and brownish ; a 

 double median reddish-brown line, enclosing crests, which 

 are brownish; underside whitish. Legs, anterior pair 

 fuscous, coxae whitish [middle and posterior pairs 

 broken off]. Forewings triangular, cost a gently arched, apex 

 round-pointed, termen bowed, crenulate; whitish with fine 

 pale-brown or grey irroration; lines fine, blackish, becoming 

 reddish on dentations ; first from | costa, acutely angled 

 inwards beneath costa, then prolonged outwards nearly to 

 middle of disc, where it forms a narrow quadrangular process, 

 in which is included a brownish linear discal mark, return- 

 ing it forms an acute angle on disc beneath subcostal angle, 



