AND TIIEIE TRANSFORMATIONS. 29 



From the Conceca this genus diffei-s in the trigonatc wings ; the deeply ciliated antennae of the males, and the fusiform 

 ones of the females ; by the pendulous case ; and by the metallic lustre of the imago. 



From (Ecohia, by the fusiform antcnnm of the females ; by the very small palpi ; by the case not being cylindrical nor 

 bearing twigs ; and by the metallic lustre of the perfect insects. 



SPECIES 1.— QiCINBA PELDERI.— (Plate <).) 



Those elegant little insects wo collected in September and October, in or immediately about the Botanic Gardens and 

 Government Domain, near Sydney, feeding upon various weeds, preferring chiolv-weed (Stellaria media) and some grasses, 

 and resorting to old and decayed wood eitlior for shelter or for the purpose of procuring material, with which, together with 

 particles of earth, they enlarge and protect their dwellings : these cases are bag-shaped, occasionally with the covering hanging 

 loosely about the entrance, pendent, and lined with soft buff coloured silk. The larva is quick and restless in its movements, 

 and conveys its somewhat cumbrous dwelling from place to place with greater celerity than could at first be imagined. The 

 progression upon any irregular horizontal surface is accompanied by a singular jerking motion, caused by the animal stretching 

 out the thoracic annulations in order to obtain a purchase, and almost simultaneously lifting the case by a muscular motion 

 of the abdomen, it brings it forward with a sudden spring. In length the caterpillar (fig. 1) measures 'i inch, having the head 

 and thorax dark brown and the abdomen black. 



The Chrysalis (fig. 2, <S) is brown, pointed at the extremity, and t's inch in length : having remained in this state one 

 month, the perfect insects take wing. 



The male measures in expanse of wings slightly over ij ineli ; the female J. 



The Anteimm, ? shortish, slightly fusiform, and scaly. 



The Zabial palpi, ? minute, projecting fornards and slightly downwards; moderately hairy; joints almost of an equal 

 length, terminal somewhat obtuse. 



The Zeffs, Anterior pairs liave the coxeg and femora long, and sparingly clothed with scales; 2nd pairs with 



2 rather long apical spurs; posterior pairs the largest, moderately hairy, and with t large spurs 

 on the tibise. 



The wings dcflexed at rest. 



The upper surface of the male is of a dark brown, relieved by gold, disposed in two short subcostal patches, and numerous 

 small dots along the exterior and interior margin of eacli superior wing, and in a large discal patch on the inferior wing. The 

 antennaj and marginal fringes also possess a golden tinge. The female is throughout on the upper side of a dark metallic blue, 

 passing into bright green towards the tips of the superior wings. Distinct largish spots of white are distributed equally over 

 the upper wings, and two small similar spots occupy the abdominal margin of the under ones. The terminal segment of the 

 abdomen tufted with longish yellow hairs, partly oonceaKng an cxserted yellow ovipositor. 



The flight of the male is rapid, that of the female slow and heavy ; and we have reason to believe that the insect is diurnal. 



The male, two females, and the caterpillar, are delineated around a small tuft of the Poa annua, an imported grass. 



SPECIES 2.-a:ciKEA SCOTTI.— (PuTE 9.) 



CEcmea ScotU, Macloay, M.SS. 



The (Ecinca Scotti exceeds in size and beauty of colouring the preceding species, and is withal more frequently met with. 

 We have found the larvaj in considerable abundance during the month of September in Sydney and its vicinity, and on Ash 

 Island, where, from their gregarious habits, we were easily enabled to select from beneath the loose bark of a prostrate tree, 

 upwards of 45 specimens, this number being considered amply sulficicnt for attaining the knowledge of their economy and 

 metamorphoses. When first captured, their cases were entirely covered with dark reddish brown pulverised wood, but being 

 suppKed in confinement with decayed Avood of various colours, these gradually assumed a motley appearance, the larva) attaching 

 to their habitations any convenient substance they may meet with : in one instance a few white hairs from the cat having fallen 

 accidently in the box were immediately appropriated. 



