468 DESCRIPTIONS OF AUSTRALIAN MICRO-LEPIDOPTERA, 



round Melbourne ; in August and October, and from January to 

 March, apparently in a succession of generations. 



The type of Pandemis mediana, Walk., is from Tasmania ; it is 

 a female, larger and more brightly coloured than usual, but 

 apparently not essentially different. 



16. DICHELIA, Gn. 



Thorax smooth (or rarely crested). Antenna} in male thickened, 

 more or less serrate, ciliated. Palpi rather short, porrected, 

 densely rough-scaled above and generally also beneath, the hairs 

 often forming a rough tuft beneath, in which the terminal joint 

 is nearly concealed. Eorewings elongate-oblong or rather short, 

 costa in male simple, evenly arched towards base, hindinargin 

 oblique, rounded. Hindwings rather elongate, hardly or not 

 broader than forewings. Forewings with veins 7 and 8 stalked, 

 vein 7 running to hindinargin. Hindwings with veins 3 and 4 

 rising from a point or short-stalked, 5 approximated to 4 at base, 

 6 and 7 stalked. 



This genus forms the type of a group distinguished by veins 3 

 and 4 of hindwings rising from the same point, 7 and 8 of fore- 

 wings rising from a common stalk, and the absence of a costal fold 

 in male ; the latter character separating it from Capua, to which 

 it is otherwise intimately allied. The distinguishing points of 

 Anatropia and Anisogona, its nearest Australian allies, have been 

 already pointed out. Other genera of the group are Oenectra, 

 Gn., (Europe and America,) separated by the very long palpi; 

 Amphisa, Curt., (Europe,) by the pectinated antenna of male ; 

 Amorbia, Clem., (North America,) by the coincidence of veins 7 

 and 8 of forewings in male ; Cenopis, Z., (North America), by the 

 deeply excavated forehead of male. 



The species are generally small and rather neatly marked. 

 There are eight European species, and at least two have been 

 described from North America ; other North American species 

 have been referred to this genus, as well as one (probably correctly) 



