These moths have slender bodies; short generally broad fore wings, truncate at the extremities; the hind pair also broad; and when they are at rest during the day time their wings are folded flat down. The costal margins of the fore wings are much rounded when the wings are folded, giving a general bell shaped form; from which these moths take their popular name. They are sometimes called “leaf twisters” or “leaf rollers,” but differ from the true gregarious leaf roller caterpillars in seldom matting a number of the leaves together. The caterpillars also feed upon seeds. [Illustration: =Fig. 139.=--_Cacaecia postvittana_ (Walker). The light-brown Apple Moth.] The members of the Genus _Cacaecia_ are interesting insects because several have been found attacking fruit in orchards: _C. postvittana_, was recorded by Olliff gnawing in apples like a codlin moth. It measures ¾ of an inch across the wings; is of a general dull yellow marked with brown, but its colour and markings are very variable. It has a wide range over Tasmania and the eastern coast of the mainland into Queensland; and about Sydney the caterpillars feed upon half a dozen different common native shrubs. French in his Handbook of the Destructive Insects of Victoria Pt. I. 1891 has named and figured one, _C. responsana_, the “Light Brown Apple Moth,” as an apple pest in Victoria; this is probably _C. postvittana_. _C. Australasiae_ is a larger species of a dark brown colour; the fore wings are lightly mottled or marbled. _C. lythrodana_ is a smaller, similar coloured moth, but the colouration is finer. _Paramorpha aquilina_ is a tiny, creamy-grey moth not quite ½ an inch across the wings: in its native state it frequents damp or marshy ground, flying low among the herbage. The larva is a short, pale green grub that, in several of the orange growing districts, attacks the ripening oranges; boring through the skin, it feeds upon the pith between the rind and flesh, where it finally pupates and causes the orange to turn yellow and drop off. [Illustration: =Fig. 140.=-_Paramorpha aquilina_ (Meyrick). The Orange-skin Borer.] [Illustration: =Fig. 141.=--Life history of the Lucerne Leaf Roller, _Tortrix glaphyriana_ (Meyrick).]