194 AUSTRALIAN THYRIDIDAE AND PYRALIDAE 



■wings with veins 4 and 5 closely approximated towards base ; 

 in <? with a small grandular swelling on mid-costa, beneath which 

 in disc is an oblong thinly scaled fovea, round which veins are 

 distorted. Hindwings with veins 4 and 5 closely approximated 

 towards base, veins 7 and separate, or very shortly anastomosing. 

 I view this as a development of Macalla with exaggerated 

 palpi and loss of antennal processes. In structure it approaches 

 Arnatula, but differs in the hindwings. 



HETEROBELA TRIGLOCHIS W. Sp. 



T/Dty\a)x<.s, three-forked ; in allusion to the posterior line. 



^ $ 27-82 1T1_111^. Head, thorax and palpi grey. Antennae 

 fuscous ; in ^ simple, moderately ciliated (f). Abdomeo 

 ochreous-whitish irrorated with fuscous. Legs whitish irrorated 

 with grey ; anterior and middle tarsi dark-fuscous annulated 

 with whitish. Forewings triangular, costa scarcely arched, 

 apex rounded, ternien slightly rounded, moderately oblique ; 

 grey-whitish irrorated with dark-grey and some dark-fuscous 

 scales ; lines dark-fuscous ; antemedian straight, from } costa 

 to -J dorsum, sometimes suffused ; postmedian from •§■ costa 

 obliquely outwards, forming three acu^e teeth in disc, then 

 sharpely indented inwards before ending on f dorsum ; a more 

 or less interrupted line from costal end of antemedian to 

 indentation of postmedian ; an interrupted dark-fuscous terminal, 

 line ; cilia whitish, bases mixed with fuscous and reddish. 

 Hindwings with termen rounded ; whitish, with a broad 

 suffused dark-fuscous terminal band ; cilia whitish with a 

 fuscous basal line. 



Var. a. Space between lines of forewings suffused with 

 dark-fuscous. 



Type in Coll. Turner. 



Q., Brisbane, in October, January, February, and March, 



sixteen specimen?. 



Gen. 28. Macalla. 



Mamlla, Wlk., Brit. Mus. Cat. xvi., p. 156. 



Stericta, Led. Wien, Ent. Mon. vii, p. 340 (1863). Meyr.. 

 Tr. E. S. 1887, p. 187. 



It will be noted that I use this and the following two 

 generic names in a different sense to that in w^hich they are 

 employed by Sir Geo, Hampson. 



MACALLA NUBILALIS. 



Stericta nubilalis, Hmps., 111. Het., ix, p. 157. PI. 172, f. 9. 

 Sir Geo. Hampson informs me that specimens from Ceylon 

 and Australia are exactly alike. 



