110 



become a serious crop pest. The eggs of this species are laid in the 

 soil. The larvae remain in the ground during the daytime, emerging 

 at night to feed upon the bark and foliage of the host plants. The 

 habits of the adult are similar to those of the larva. 



D. maculala, which is distributed throughout Australia, is equally 

 destructive to fruit trees and vines, while D. malevolens causes injury to 

 orchards in the Swan River district of Western Australia. The best 

 method of control is to trap the insects by means of weeds or grass 

 placed in a shallow depression round the roots of the plant. A ring 

 of stiff oiled paper placed round the stem should prevent the weevils 

 from climbing up the plant. 



Froggatt (W. W.). a Descriptive Catalogue of the Scale Insects 

 {" Coccidae ") of Australia. — Agric. Gaz. of Neiv South Wales, 

 Sydney, xxvi, no. 12, December 1915, pp. 1055-1064, 2 plates. 



The following species of Coccidae are recorded : — Cerococcus 

 auranticus, sp. n., onBursarva spinosa (blackthorn) ; C. bryoides, Mask., 

 on Exocarpus cupressiformis (native cherry) and Helichrysum 

 diosmifolium ; C. punctifenis, Green, on Pittosporum eugenioides ; 

 C. pyriformis, sp. n., on an undetermined shrub ; Kermes acaciae, Mask,, 

 on Acacia sp. ; Rhizococcus bicolor, sp. n., on Acacia sp. ; R. casu- 

 arinae, Mask., on Casuarina suberosa and C. distyla ; R. grandis, Mask., 

 on the roots of Acacia hn^ifolia ; R. lecanioides, Green, on Casuarina • 

 distyla ; R. lidgetti, Ckll., on Acacia estrophiolata ; R. hbulatus, Green, 

 on Acacia p)€.7idula ; R. mancus, Mask., R. pustulatus, Mask., and 

 R. tripartitus, Full., on Casuarina spp. ; R. viridis, Green, on Acacia 

 decurrens ; Gossyparia casuarinae, Mask., on Casuarina sp. ; G. con- 

 fiuens. Mask., on Eucalyptus sp. and G. syncarpiae, sp. n., on Syncarpia 

 laurifolia (turpentine gum). 



Hill (G. F.). Insect Pests of Plants : Northern Territory of Australia. 

 — Dept. External Affairs, Melbourne, Bull. Northern Territory 

 no. 13, August 1915, 16 pp. [Received 27th January 1916.] 



This bulletin gives a list of some of the principal insect pests of 

 trees and crops at present grown in the Northern Territory, with 

 information as to methods for their control and the preparation of 

 insecticides. 



Melons, pumpkins, maiTows :• — The Pyralid, GlypJiodes {PhaceUura) 

 indica, Saund. (melon moth) ; the Ghrysomelids, AidacopJiora hilaris, 

 Boisd. (pumpkin beetle), A. jmlmerstoni, Blackb. (pum^pkin beetle) and 

 Epilachia 28-punclata, F. (28-spotted ladybird) ; the Pentatomid, 

 Megymenum insidare, Westw. (pumpkin bug), and the Trypetid, 

 Dacus cucurbitae, Coq. (melon fruit fly). An important natural 

 enemy of Epilachna has been discovered, viz. : — the Chalcid, 

 Mestocharis lividus, Gir. 



Tomato :■ — The Noctuid, Chhridea obsolela, F. (HeUothis armi- 

 gera, Hb.), (tomato moth). 



Cotton :— The Pyrrhocorid, Dysdercus cingidatus, F. (red cotton , 

 bug), the Pentatomid, Tectocoris lineola, F. (yellow cotton bug), the 

 Lygaeid, Oxycarenus arctatus, Walk, (little cotton bug), the Noctuid, 



