which is in all probability its food plant ; as an allied species 

 H. delicia, Hew., feeds on " Blackwood " (Acacia melanoxylon). 

 This beautiful specimen has not been recorded previously for S. A. 



Ialmenus, Huh. 



23. I. Illidgei, Lucas. 



Proc. Royal Soc. Queensland, p. 156, f. 1-2, 1889. 



Parkside and Hi^^hbury. Common in larval state, but more 

 scarce in the wing. Not previously taken here. 



In Miskin's Catalogue for 1891 I notice that this species is 

 quoted as synonymic with ictinus, Hew. Now, I am always 

 amenable to reasonable queries, but I think Miskin goes a little 

 too far. There is as much difference, if not more, between the 

 two above-mentioned than between Lye. agricola, D. H. and W., 

 and serpentata, H. S. If they are the same as Miskin says, how^ 

 is it that we do not get "ictinus" down here"? And how is it 

 that our larva? are green, whilst the Brisbane and Victorian 

 forms are broivn ? The typical " Illidgei" differs very little from 

 our species, and is immediately recognisable by the absence of 

 black markings on underside, wliich are so prominent in the true 

 " ictinus." Larva full fed. Length, 26 mm. Moderately stout, 

 tapering at both ends. Head small, shining black, with a few 

 whitish scattered strigula. Body bright yellowish-green, sides 

 more yellowish ; second segment with two curiously raised w^art- 

 like protuberances of a dark crimson colour, which are thickly 

 covered with moderately long hairs ; third and fourth segments 

 with somewhat similar protuberances, but not hairy, like second. 

 Segments from seven to ten inclusive are marked with curious 

 uninterrupted wedge-shaped spots on dorsum. On each side of 

 these spots is a deep crimson blotch, corrugated at sides, the pos- 

 terior portion being raised in the form of an erect projection — 

 those on anal segment much larger — sparsely furnished with 

 hairs. Spiracles ochreous-yellowish, margined with brown. Be- 

 neath each spiracle is a tuft of scattered hairs, generally about 

 six. Anal segment is densely covered with short blackish hairs. 

 Belly light green, sides densely clothed with short whitish hairs. 



Chrysalis pitchy-black, shining. Abdominal segments marked 

 with ochreous-yellow lines. A similar line placed dorsally from 

 head to base of thorax, and continued round the wing-covers. 

 Spiracles orange-yellow. Length, 13 to 15 mm. Feeds on ^c«cm 

 pycnantha, the larva being covered with small ants. The 

 chrysalis is usually found at the foot of the tree, and the perfect 

 insect emerges in from six to nine days, males predominating. 



24. I. ixous, Herv. 

 111. D. L., p. 54, n. 3, t. 24, fig. 1-2, 1865. 



