332 Mr. E. Meyrick on the classification 



a. Hind wings with apex yellow eurychrysa. 



b. „ ,, ,, dark fuscous. 



1. Fore wings with large triangular dark-margined 



orange patch from costa . . . . . . . . calliaspis. 



2. Fore wings with three orange or yellow blotches. 



a. Central blotch very broad . . . . . . . . achoealis. 



[3. ,, ,, fascia-like. 



i. Central blotch straight . . . . . . . . diplochrysa. 



ii. ,, ,, bent over posteriorly at apex .. epichrysa. 



A. Frontal projection long, flattened, terminal edge 

 somewhat excavated. 



Metallarcha calliaspis, n. s. 



(? , ? , 17 — 21 mm. Head, palpi, thorax, and abdomen reddish 

 cchreous-yellovp ; palpi externally dark fuscous on upper half; 

 shoulders and a central spot of thorax dark fuscous. Antennse 

 dark fuscous. Legs dark fuscous, tarsal joints yellowish at base, 

 middle and posterior tibias yellovs^ish. Fore wings moderate, 

 triangular, costa faintly smuate, arched towards apex, apex 

 tolerably rounded, hind margin obliquely rounded ; light greyish 

 ochreous ; a reddish ochreoiis-yellow spot at base of inner margin ; 

 a large blackish triangular blotch, irrorated with whitish grey, 

 extending on costa from about one-third to five-sixths, its apex 

 reaching nearly or quite to inner margin at two-thirds, sometimes 

 truncate ; this blotch connected with base by a tolerably broad 

 streak along costa ; within the blotch are three irregular orange or 

 reddish spots, placed in a triangle, and occuj)yiBg nearly the whole 

 of the blotch ; a blackish hind-marginal band, suffused anteriorly 

 into ground colour ; a few blackish scales along inner margin ; 

 cilia dark shining grey, with a basal ochreous-whitish line followed 

 by a blackish line. Hind wings reddish ochreous-yellow ; a 

 blackish discal dot, sometimes obsolete ; a well-defined broad dark 

 fuscous hind marginal band, attenuated and disappearing before 

 anal angle ; cilia as in fore wings. 



Variable to some extent, but very distinct. 



Petersburg and Port Lincoln, South Australia ; 

 tolerably common in October and November, frequenting 



Beyeria opaca {Euphorhiacece) . 



B. Frontal projection truncate-conical. 



Metallarcha diplochrysa, n. s. 

 (3^ , 5 , 16 — 19 mm. Head, palpi, thorax, and abdomen deep 

 ochreous-yellow ; sides of face, upper half of palpi externally, 

 shoulders and a central spot of thorax, dark fuscous; abdomen 



