BY E. MEYRICK, B A. 693 



FAM. III. CONCHYLID^E. 



Lower median vein of hindwings not pectinated ; vein 2 of 

 forewings rising from posterior fourth, of lower margin of cell. 



This family appears to be very scantily represented in the 

 Australian region by a few peculiar genera ; none of the previously 

 described genera have yet occurred. The four genera with which 

 I am acquainted may be thus distinguished : 



A. Veins 3 and 4 of hindwings remote at origin 1 . Heliocosina. 



B. Veins 3 and 4 of hindwings stalked or from 



a point. 



1. Palpi very long .. .. .. ..2. Paramorpha. 



2. Palpi moderate. 



a. Forewings in male with a raised mem- 



branous ridge near base .. ,. 4. CosciLOptycha. 



b. Forewings in male without membran- 



ous ridge . . . . . . . . 3. Oistophora. 



1. HELIOCOSMA, n. g. 



Thorax smooth. Antennae in male thickened, laterally com- 

 pressed, pubescent. Palpi very long,' straight, porrected, second 

 joint roughly haired, attenuated, terminal joint long, exposed. 

 Posterior tibise fringed with hairs above. Forewings elongate, 

 somewhat dilated, costa in male simple, slightly arched, bent 

 before apex, hindmargin obliquely rounded ; surface with rough 

 scales. Hindwings broader than forewings, rounded-ovate. 

 Forewings with veins 7 and 8 separate, 7 running to hindmargin, 

 secondary cell indicated, vein 1 furcate at base. Hindwings with 

 8 veins, 3 and 4 remote at origin, 5 parallel to 4, 6 and 7 remote 

 at origin, nearly parallel. 



Larva sixteen-legged, case-bearing, feeding on flowers. 



The species of this genus in superficial appearance nearly 

 resemble Conchylis, but the genus differs widely from all others 

 of the family in the remoteness of veins 3 and 4 of the hindwings 



