18 AUSTllALIAX LEPIDOPTEllA 



the wounding apparatus is tlirowu out. Two elongated spine-shaped reddisli projections are placed in front, and two similar ones 

 on the penultimate segment ; under these in the region of the stigmata arc smaller green-coloured projections enoircUng the 

 caterpillar. When irritated, the caterpillar exserts four star-shaped rose-coloured appendages, which on contact with the skin, 

 wiE cause pain similar to the sting of a nettle. 



The Cocoon is coriaceous, thin, smooth exteriorly, hrown-coloured, a regular oval, and affixed to the brancli by silken 

 threads : it possesses a neat fitting opening at the lower end, and is delicately lined within. 



The Chrysalis (fig. 1) is a little under -J an inch in length, squat in form, soft and fleshy, of a yellowish tinge, and in the 

 female much rounded at the abdomen. 



The female perfect insect is li inch in expansion ; the male slightly under 1} inch. 



The AnteiiiKB, ...of the male very moderately bipeetinated to about the half, the remainder minutely serrated to the tips ; 

 of the female (fig. 2) setaceous. 



The Labial palpi (fig. .3 and d) anterior joint small, pointed at the tip, and slightly longer than the basal ; tlie middle joint 

 more robust and twice as long ; the whole projecting so as to be nearly even with the front of the liead. 



IheLegs, 2nd and posterior pairs (fig. 4) mth 2 small apical spurs on tibia;; slightly pilose, with long hairs 



arranged in front of the tibia; and tarsi. 



The wings deflexcd in repose. 



The upper wings of both sexes are fulvous, darkening in colour towards the costa and base : the whole surface delicately 

 transversely corrugated. An oblique transverse row of black spots near the middle, the tlirce anterior and two posterior 

 distinct ; intermediate ones very small and faintly marked, each surrounded by a pale yellowish shade, which also pervades the 

 space near the exterior margin. The under wings are pale yellowish-brown, deepening towards the margin. Head, thorax, and 

 abdomen dark fulvous, the latter in the female bordered towards the extremity ivith dark brown wool. The underneath 

 throughout is pale fulvous. 



The female moth, two caterpillars, a cocoon, and the young foliage of a species of Eucalyptus, are figured. 



SPECIES 2.— DORATIOPHOKA CASTA.— (Plate VI.) 



The perfect insects of this species, altliough smaller, agree so closely with the D. Lcwini just described, that those 

 unacquainted with the larva; would be apt to associate them under the idea that the present ones were not so large, nor such 

 fine specimens as the preceding. The utter dissimilarity between the caterpillars of the two species may, however, at once be 

 recognised by reference to the drawings. It wiU thus be seen that this caterpillar is jot black, armed with four longitudinal 

 rows of .short, thick, yellowish, spine-shaped protuberances, the two largest placed anteriorly : between these and along the back 

 are small spots and streaks of the same pale colour, assuming in the region of the stigmata a continuous undulating line. The 

 thoracic segments carry the four fasciculated stings, which are of the same colour as the spots and protuberances, so that the whole 

 upper surface of the larva is black and ycUowisli-white, ivith the exception of the small reddish anterior annulation. When full 

 grown it attains to 1 inch in length, tliick, elongate, obtuse at the extremities, and somewhat depressed along the back. 



The larva; are of frequent occurrence in March, and mdely distributed, as we ourselves have procured them both at the 

 Turon, and in our immediate vicinity on the Lower Hunter, the distance between the two places being fully 130 miles. They 

 feed upon the loaves of various Eucalypti, principally confining themselves to the upper surface, which they speedily consume, 

 leaving untouched the inferior epidermis and the uervures, so that from their congregated numbers, the boughs of the tree which 

 they infest appear as if scorched by a hot wind, the leaves becoming shrivelled or rolled up. 



Like that of the preceding species, the cocoon is ovate, furnished with a lid, and attached to the twig by threads ; but 

 outwardly of a more shining brown, and in length a trifle under ^ an inch. 



The Chrysalis (fig. 1, male) ycUowish-white, sliort and fleshy, tliick, particularly that of the female. 



In expanse of wings the female measures 1), inches, the male .V inch less. 



Tlie Anlenna; ...(fig. 2, male) moderately bipeetinated to half its length, remainder minutely serrated to the tips ; of the 

 female setaceous. 



The Labial palpi (fig. 3 and 4) small, pilose, projecting as far as the front of the head, terminal joint smaU, pointed, 

 slightly shorter tlian the basal ; middle fully twice as long. 



The Legs, sliglitly hairy, the tibia; and each joint of the tarsi, with long brushes exteriorly; 2nd and posterior 



pairs (fig. 5), with 2 small apical spurs on tibia;. 



Wings deflexcd at rest. 



