164 



larvae is the result of their complete destruction. Subcutaneous 

 injections of an extract of inoculated larvae, from which Bacillus 

 Jiocki had disappeared, were given to guinea-pigs and it was found 

 that when an extract was used after an inoculation lasting 5 minutes 

 within the larvae, the guinea-pig died three months later of general 

 visceral tuberculosis. When an extract after 2 to 8 hours' inoculation 

 was used, death occurred after a similar interval, though in 5 to 8 

 hours after inoculation of the bacillus into the body of the larva it 

 is exceptional to find any trace of it there. 



Further research on this subject is necessary, but it is evident 

 that the larva of the bee-moth does not possess any substance capable 

 of breaking down the action of the bacillus. The tubercle bacillus 

 is rendered inoffensive, it encysts and loses its affinity for acid, but it 

 is not destroyed, at least for some hours. 



Illinoworth (J. F.) & Jarvis (E.). Cane Grub Investigation, — 

 Queensland Agric. Jl., Brisbane, xiii, January 1920, pp. 33-36. 



The mode of oviposition of the digger wasp, Dielis formosa, parasitic 

 on Lepidiota frenchi is described. The larvae emerge after about 

 3 days and pupate after feeding for seven or eight days. The adults 

 emerge in about five weeks, the total Ufe-cycle thus occupying less 

 than two months. There are probably four generations a year. 



Breeding experiments show that unfertihsed females of another 

 wasp Ckmipsoineris radula begin ovipositing about 4 days after emerg- 

 ence and that the ova hatch in a normal manner and produce indi- 

 viduals of both sexes. 



In addition to the grubs of Lepidiota spp., Isodon spp. and Haplo- 

 nycha spp., a cockchafer is recorded as damaging sugar-cane, as well 

 as an unidentified Psychid. 



Experiments with manures show that meat-works manure has 

 the disadvantage of having a distinct attraction for sugar-cane grubs. 

 Of the various forms of arsenic used, common white arsenic (arsenious 

 acid) proved most effective. 



Lyon (A. V.). The Viticultural Industry.— <Scimce & Industry, 

 Melbourne, i, no. 8, December 1919, pp. 490-494. 



Insects affecting grapes in Australia include the Indian meal moth 

 [Plodia ifiterpunctella], Avhich is a serious pest of dried fruits ; the 

 elephant beetle, which is best kept in check by the destruction of 

 tamarisk hedges in the winter between April and October before 

 the adults emerge ; and the hght brown apple moth \Torfrix ashwor- 

 thana], which is particularly destructive to sultanas and against which 

 a spray of 2 lb. lead arsenate to 30 gals, of water has proved successful. 



Beeson (C. F. C). The Life History of the Toon Shoot and Fruit 

 Borer, Hypsipyla robusfa, Moore (Lepidoptera, Pyralidae, 

 Phycitinaej with Suggestions for its Control. — Indian Forest 

 Records, Calcutta, vii, no. 7, 1919, 71 pp., 13 jilates, 2 figs. 

 [Received 23rd February 1920.] 



This detailed account of Hypsipyla robusta, Moore (toon shoot and 

 fruit borer) is the result of investigations carried out during 1914-1916, 



