THE VICTORIAN NATURALIST. 139 



I y^ mm. in diameter, concave beneath, very pale yellowish green, 

 and hollowed slightly at apex ; very much depressed, and ribbed 

 longitudinally. 



27th Nov. — Eggs of //. ornata showing a light crimson inter- 

 rupted band, of unequal thickness, running round egg, about half- 

 way down, and crossing ribs at right angles ; also showing a pale 

 crimson nearly circular blotch, covering the hollowed apex and 

 extending unevenly beyond it. 



27th Nov. — Eggs of H. perornata not showing any of the above 

 markings. 



30th Nov. — Eggs of //. ornata still coloured with crimson. 



8th Dec. — Larvie of //. perornata emerged. Length, 5 mm. In 

 colouration they resemble those of //. ornata, but differ in having 

 the raised collar to first thoracic segment dark brown and very 

 slightly tinged with crimson. 



8th Dec. — Eggs of //. ornata changed their apical blotches and 

 side bands of crimson to a dark brown. 



i2th Dec. — Larvae o( H. omata emerged. Length, 4 mm. In 

 colouration pale yellow, shaded towards anal segment with 

 darker colour ; dorsal, sub-dorsal, and lateral lines brown, 

 becoming indistinct towards and on thoracic segments; first 

 thoracic segment slightly raised, shining, and of bright crimson 

 colour ; head shining black. 



H. perornata seems to be not quite so swift on the wing as U. 

 ornata, and is very fond of fluttering slowly about the clumps of the 

 Cladium in a manner I have never observed in H. ornata,, which 

 usually flies to the food-plant with quick precision, and at once 

 settles on the blades. H. perornata may probably be considered 

 to be a very local species. My specimens, taken last spring, were 

 got within a radius of a few square chains, but it may not be 

 found to be so extremely local as this generally. The favourite 

 locality seems to be a gentle westerly slope, with open sunny 

 patches, sheltered by timber, and supporting abundant clumps of 

 of the food-plant. This species is fond of flying with H. ornata, 

 and settling on the extreme tips of various native shrubs, seeming, 

 when in this situation, to enjoy being rocked slowly by the light 

 breezes." 



From the foregoing notes by Mr. Jarvis it will be seen how 

 important is the study of the early stages of an insect in de- 

 termining the species. 



I take advantage of this opportunity to record for the first 

 time H. perornata from New South Wales. During a trip to the 

 Blue Mountains I look several specimens at Katoomba, on 20th 

 and 2ist November, 1897. I captured them fluttering slowly 

 around clumps of Cladium, before 8.30 a.m., and, though I several 

 times visited the same spot later in the day, could see no further 

 trace of them. 



