638 DESCRIPTIONS OF AUSTRALIAN MICRO-LEPIDOPTERA, 



costa (? or hindniargin), secondary cell distinct, vein 1 furcate at 

 base. Hindwings with veins 3 and 4 stalked, 5 approximated to 

 4 at base, 6 and 7 stalked. 



Allied to Penthina, but distinguished from all other genera of 

 the group by the stalking of veins 3 and 4 of hindwings ; the 

 stalking of veins 6 and 7 of hindwings, and the termination of 

 vein 7 of forewings on the costa, are also noticeable characters. 



I have only been able to thoroughly examine the neuration of 

 H. uberana ; but the other two species appear to agree in all 

 essential points, as well as they can be made out, and especially 

 in the stalking of veins 3 and 4 of hindwings, which is distinct. 



The three species may be separated as follows : 



a. Forewings white and black ; hindwings yellow. . 1. tricolor ana. 



b. Forewings ochreous-brown; hindwings dark-grey 2. uberana. 



c. Forewings light ochreous ; hindwings pale 



brownish-ochreous .. .. .. . .3. fang ij er ana. 



1. Helict. tricolorana, n. sp. 



$ . 7". Head, palpi, and thorax dark fuscous mixed with 

 whitish, second joint of palpi with an ochreous spot on outer side. 

 Antenna) brownish-ochreous. Abdomen dark fuscous, tinged 

 with ochreous. Legs blackish-fuscous, tibiae and tarsi with 

 slender whitish rings. Forewings moderate, costa gently arched, 

 apex obtusely rectangular, hindmargin hardly oblique ; white, 

 costa and inner margin very shortly strigulated with black ; basal 

 patch blackish, mixed with dark grey and whitish, its outer edge 

 extending from one-third of costa to one-third of inner margin, 

 irregular, slightly angulated in middle ; a dark fuscous-grey 

 ill-defined blotch extending along inner margin from basal 

 patch to three-fourths, reaching half across wing, somewhat 

 rounded posteriorly ; two or three small black marks immediately 

 beyond its posterior edge ; a small black triangular spot at apex 

 of wing, slenderly produced along hindmargin, and containing 



