278 
Froggatt (p. 267). On E. leucoxylon at Bcndigo, Vic.j and on E. macr&rrJiyncha and 
E. hemiphloia at Tumut, NJ3.W. R. assimilis Froggatt (p. 269). On E. viminalis 
at Cooma, N.S.W. R. comiculata Froggatt (p. 270). On E. gracilis at Bendigo, Vic., 
and at Wagga, N.S.W., on E. gracilis (sic.). Mr. Froggatt suggests that specimens on 
E. largiflorens (bicolor) from Bourke, N.S.W., and from E. rudis, Western Australia, 
may belong to thus species. 7?. oslreata Froggatt (p. 272). On E. gracilis at Bendigo, 
Victoria. R. pinncefvrmis Froggatt (p. 273). At Yass, N.S.W., on an undetermined 
Eucalypt. 7?. liturata Froggatt (p. 274) on E. robusta in the Sydney district, also Tumut 
(but ? E. robusta there). R. viridis Froggatt (p. 276). On E. robusta. 
Aplialaria lecta Maskell (p. 279). On E. Stuartiana from Victoria. A. carinata 
Froggatt (p. 279). The larvae attack the extreme tips of the leaves of E. capitettata, at 
Sydney, forming half-rounded galls through the tips of the leaves swelling out and 
curving round. 
Cardiaspis artifex Schwarz (p. 282). On foliage of E. robusta at Manly, Sydney, 
and Termeil, N.S.W. On E. leucoxylon, South Australia. C. plicatuloides Froggatt 
(p. 284). On E. roitrata in Botanic Gardens, Melbourne, and in the Sydney district 
and at Mittagong, Yass, and Tumut, N.S.W., on undetermined Eucalypts. 
Cardiaspis sp. Re Lerp insects or Psyllidse destroying ironbark trees in the Taree 
district, Mr. Froggatt reports on 26th April, 1916 : 
The insects infesting the foliage of the trees are the larval forms of an unnamed species of Cardiaspis, 
one of the lerp insects. The minute adult insects lay their eggs all over the surface of the leaves, the larvae 
hatch out, and puncturing the surface, suck up the sap, and with the surplus secretion spin lace-like 
coverings of lerp, under which they remain sucking up the sap until ready to emerge as perfect insects. 
Wherever the larva forms a lerp and there are millions of these lerp insects on every bush or sapling), a 
brown patch appears, and through a severe infestation every leaf becomes brown and dies. As this 
infestation, which was first noticed some seven years ago, has been rapidly spreading all through the ironbark 
on the Northern Rivers, it is now a constant thing; not only have all the leaves continued to die, but the 
branches have died back until the whole tree dies, and thus, through these minute insects, many valuable 
trees are already dead, while many others are following in their wake. At the rate this is going on this 
lerp insect seems to be a very serious thing for the future. It was reported that the Grey Gum was also 
attacked by this pest, but examination showa that it was another species of the same family, a species 
described by the writer from specimens obtained in the Botanical Gardens at Sydney on the foliage of a 
smooth-barked gum, and named Eucalyptolyma Maideni. This covers the foliage in the same way that the 
ironbark lerp does. 
There seems to the writer to be no practical way of dealing with these minute psyllidco, which cover 
the foliage of trees up to 50 or 60 feet in height, as the leaves are simply encrusted with the lace-like tests 
of the larva;. Opening up the forests will probably help in clearing out useless timber and letting in the MIII 
and air to the trees. Many Chalcid wasp parasites infest the larva;, and they may increase with the 
enormous increase of the lerp insects, and become a factor in the future in keeping down this pest. 
It seems to mo an allied species is referred to by R. T. Baker in Proc. Linn. Soc. 
N.S.W., XXIV, 297, (1899). 
At certain seasons of the year the leaves of this tree alone (Eucalyptus Dawsoni, the Slaty Gum). 
are affected by a species of Psylla ; the insects eat off the cuticle of the leaves, giving the whole country- 
Bide (Goulburn River to Pilliga) an appearance in the distance as if a bush fire had passed over it. 
Cometopsytta rufa Froggatt (p. 286). At Liverpool, N.S.W. (on E, cp.}; at 
Wagga, NJ3.W. (oh E. mettiodora). 
