357 



into small trenches and burying. Contact insecticides are useful, but 

 not to the same extent. The adult locusts should be collected and 

 destroyed ; the natives do this wiUingly for a small payment. Internal 

 poisons and Coccobacillus acridiorum have proved unsuitable in 

 Egypt, No swarms arrived at maturity and only very little damage 

 was done in general. Cases of appreciable injury were usually due to 

 indifference or negligence on the part of the cultivator or official 

 concerned. Government supervision is absolutely necessary if a 

 locust invasion is to be coped with successfully. The total cost of the 

 locust campaign was £ (E.) 16,927 ; it saved the cotton crop of the 

 Delta, which was in great danger. Seven appendices are given with 

 this report, one of which deals with the appearance of locusts in the 

 second half of 1915, after the campaign had closed in mid-June. 

 Fortunately no damage was done. 



DE Peyerimhoff (P.). Description de la Larve de Lasiodactylus 



chevrolati, Reitt. [Description of the larva of L. chevrolati.] — 



Records hid. Mus., Calcutta, xii, no. 3, May 1916, pp. 109-113, 



3 figs. 



The larva of the Nitidulid, Lasiodactylus chevrolati, reared from 



fallen and fermented fruits of Melia azadirachta (nim tree) in Madras, 



is described. 



Andrews (E. A.). Insect Pests of Tea in North-East India during the 

 Season 1915. — Qtrly. Jl. Scient. Dept. Ind. Tea Assoc, Calcutta, 

 1916, Part i, pp. 1-6. [Received 23rd June 1916.] 

 The season of 1915 was characterised by an increase in the numbers 

 of certain minor pests of tea and by the occurrence of a swarm of 

 locusts in the Darjiling, Terai and Duars districts. [See this Review, 

 Ser. A, iv., p. 64.] Helopeltis theivora, Waterh. (tea mosquito) was 

 very abundant in the northern part of the Terai, below Kurseong, but 

 less numerous than usual around Siliguri. In the western Duars 

 this species caused somewhat serious injury during September, and in 

 the Chulso district in the following month. Injury was recorded at 

 Dum Duma between February and the end of the season and was 

 most serious in October. In various localities in Cachar the insest was 

 present in injurious numbers in October and November, while the 

 Balisera and Luskerpur districts were free from attack throughout 

 the season. Tetrani/chus bioculatus, W.M. (red spider) was present 

 in the northern part of the Dar j iling-Terai district during May, and 

 in Cachar and Sylhet gardens affected by floods or difficult to drain 

 suffered from attack. No serious damage was reported from Duars 

 and Assam. Injury by Termes sp. occurred in Tezpur, South Sylhet 

 and North Lakhimpur. Heterusia magnifica, Butl. (red slug) was more 

 prevalent than usual in one district in Assam during April, July and 

 September-October. Little damage occurred in the Duars and Darj iling- 

 Terai. Biston suppressaria, Guen., was present in districts on the right 

 bank of the Brahmaputra ; the autumn brood was the most injurious. 

 Thosea spp. (nettle grubs) were reported from the Duars. Clania spp. 

 (faggot and bag worms) occurred in small numbers in the Duars, 

 Cachar and Maiigaldai. A slight attack of Empoasca flavescens, F., 

 was recorded from Bishnath during May. 



