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wattles, throiigli fhe larv® eating tlie centre pitli out of the 

 trees and killing them. Another species rings round gums, 

 and then eats up the centre, thus destroying them. Cossus 

 cinereus, appearing about the end o£ December, has also a 

 wood-boring larva, though, as the borings were transverse, it 

 injured, though rarely destroyed, trees. A curious relative of 

 this family, having a bright green colour, bordered with 

 ochreous red, tunnels the Melaleucas on the Onkaparinga, 

 but it is rare. A species of Hepialus feeds in the roots of 

 eucalypts, and when full grown the larva constructs a cocoon 

 of silk and earth, about five inches long, with a similar tunnel 

 up to the surface of the earth ; after the first rains the perfect 

 insect emerges — always at night. The Doratifera (Limatodes) 

 vulnerans is remarkable, because the larva has the power of 

 emitting tufts of stinging hairs from a series of wart-like pro- 

 minences on the back. It has no visible legs, crawling, slug- 

 like, on the leaves of the eucalypti. The cocoon is like a small 

 birds'-egg, and the larva, before emerging, cuts a perfectly 

 circular piece from the top. The Procridco are represented by 

 two species, living in the hills. They are day-fliers. Two 

 species of LitJiosia are common in the gullies. An Emijdia is 

 very common about Adelaide. The male insect flies at early 

 dawn, the female at night, though not invariably so. Deiopeia 

 pulchella, a beautiful insect, is also cosmopolitan. Euchelia 

 poas (?) may commonly be seen flying in tlie hot sunshine ; it 

 broods at the spring and autumn. Of the Agarisfida;, A. ghjcince 

 is fortunately not common in this colony, for it has forsaken 

 its natural food-plant for the vine, to which it appears to do 

 much damage in Victoria; there are two broods during the year. 

 A. CasuariiKe, Scott, also a day-flier, is not common ; its larva 

 feeds on the Lorantlius Eucalypti. Two species of Spilosma are 

 both common and much like European insects. A species of 

 Gastropacha is common ; the larva feeds on the buds of olives, 

 eucalypts, &c., and makes an egg-shaped green cocoon ; the 

 larva of another species spins a brownish cocoon between the 

 *' gum"-leaves, and may eventually be found of some use, it 

 being closely related to Antliuria pernii, the very large silk- 

 worm of China, which is about the same size, with similar 

 markings, but nuich lighter in colour. Our indigenous species 

 feeds upon the white gum, spins a good-si/cd cocoon of a light 

 grey silk, with no waste, and it could be utilised. 



Professor Tate asked if Dr. Gaze could name the indigenous 

 plant upon which the Arjaridida ghjcince fed before it changed 

 its food in favour of the vine. 



Dr. GrAZK replied that he was not aware, but probably it was 

 a species of Grlycine, since the species was named after that 

 genus of plants. 



