78 THE AUSTRALIAN NATURALIST. 
In 1908, I found several vines were affected with this dis- 
ease at Penshurst and also at Schofields, and as the disease 
‘appeared again on the same vines in the following year they 
were all destroyed on account of the very poor crop of berries, 
which appeared to be the result of the ravages of this disease. 
Entomocenous Funcr.—Several species of fungi are known 
to attack insects. The most common species found in Aus- 
tralia is Oordyceps gunnti, wnilss Cordyceps robertsti is 
very common in New Zealand. These attack and kill certain 
Lepidopterous larvae, but in doing so, do not destroy the 
natural body shape. Various other species of these remark-. 
able fungi are known to attack flies, spiders, bees and scale- 
insects. r 
THE LIFE-HISTORY OF WILETUS HECALIUS, 
MISKIN. 
(By G. A. Waterhouse, B.Sc., B.E.) 
TuE first mention of this species is to be found in the “‘Trans- 
-actions of the Entomological Society of London’’ for 1884, p. 
94, when W. H. Miskin described the female collected in Vic- 
toria by Kershaw. In the ‘‘Proceedings of the Linnean So- 
-ciety of New South Wales,’’ 1888, p. 1ol6, he described the 
male also from Victoria in the collection of Dr. T. P. Lucas. 
The species described by Boisduval as Lycaena (%) byzos in 
the ‘‘Voyage de l’Astrolabe: Lepidopteres,’’ 1832, p. 81, 
‘from the neighbourhood of Port Jackson, may possibly be an 
earlier name for this species. JL. byzos has usually been con- 
sidered as a synonym of Cundalides azanthospilos, but this 
cannot be so, since Boisduval redescribed the latter species in 
the above-mentioned volume (p. 80) under the name of Ly- 
caena (1) hubneri, as a photo of the type in the Paris Mu- 
seum clearly shows. At the same time I was informed that 
_the type of byzos could not be found, so it must remain as 
‘a doubtful species. 
Following my capture of this fine species at the October ex- 
-cursion of the club to Como, I searched the suspected food 
‘plant with excellent results, and am now able to give details 
“of the history of the species :— 
Ovum.—White, about 1-3rd as high as wide, covered with short 
white hair-like spines, deposited singly on the underside of 
‘the leaf, or on the stalk of the plant. 
Larva.—Flat, greenish, hairy, especially at the sides. The 
“nearly full-grown larva is flat, with a slight dorsal ridge, and 
-as is usual in Lycaenid larvae, the head is concealed under the 
-anterior segments. In colour it is pale greenish or greenish- 
