22 THE VICTORIAN NATURALIST. 



wings are clearly distinguished. Spiracles large, ovate, blackish. 

 The anal segment is shaped like an extended horseshoe, much 

 wrinkled, and surrounded by a deep groove. The cremaster is 

 broadly truncate, the attachment being made by strong but fine 

 silken threads. Length, 35 mm. ; of head and thorax, 20 mm. ; 

 of abdomen, 15 mm. ; width of thorax, 9 mm. ; of wing-cases, 

 11 mm. ; of base of abdomen, 14 mm. 



Ialmenes evagoras. Don. 



Chrysalis. — Pitchy black, with dull yellow lines marking the 

 course of the abdominal segments, a yellow line also dividing the 

 head from the thorax. A yellow line also proceeds dorsally from 

 the head to the base of the thorax, and thence around the edges 

 of the wing-covers. The tongue and antennal cases are also 

 edged with yellow. The head is slightly produced in front, and 

 the thorax bears a somewhat elevated ridge, highest in the 

 middle, and swollen at the sides into a faint protuberance. 

 Length, 15 mm. ; width, 6 mm. The caterpillars are well known 

 to be gregarious, and to spin a common web on the branches of 

 Acacia, to which they attach themselves by a silken girth, and 

 undergo their transformation with the head downwards. One 

 small branch in my possession bears 34 chrysalides contained in 

 a space of 4^ by 3 inches. 



Euploea corinna. Macleay. 



Chrysalis. — Short, much swollen about the abdominal region, 

 and raised there above into a hump. The thorax is also raised, 

 but in a less degree. Head truncate in front, eyes and antennal 

 cases quite prominent. The thorax is oblique to its junction 

 with the head. Colour, olivaceous brown with large burnished 

 silver patches, these latter nearly covering the whole surface, and 

 giving the chrysalis a most brilliant and attractive appearance. 

 The eye and wing cases, base of the antennal covers, 3 spots at 

 base of the head, 2 on the sides of the thorax, 2 at its base, a 

 treble macular row on the abdomen, and its under side, are all 

 burnished silver, and on the abdomen are some faint shades of 

 gold. The posterior segments are dark brown, as is also the long, 

 roughened, bifurcate cremaster. Across the centre of the wing- 

 covers, runs a medium-sized olive-brown band, bent at a sharp 

 angle in its centre, and not reaching the base of the wing. 

 Length, 18 mm. Width of abdomen, 10 mm.; of thorax, 7 mm. 



Heterocera. 

 fam., sphingid/e. 



CEQUOSA AUSTRALASIA. Bois. 



Pupa. — Dark pitchy, cylindrical, gradually tapering posteriorly. 

 Tongue-case flattened against thorax. Antennal cases strongly 

 marked, transversely wrinkled. Head and thorax also rugosely 



