41 



The chief enemies of 0. snicatas are toads, hedgehogs and shrews, 

 as well as Carabid and Staphylinid beetles. Of the vertebrates, the 

 hedgehog appeared to be the most efficient. 



To ensure the collection and destruction of the adults a syndicate 

 was formed, and very good results were obtained in 1914, 206 lb., 

 representing about 1,400.000 individuals being collected, almost all 

 before oviposition. Collections are made during the early hours of the 

 night, the weevils, which remain hidden all day at the foot of the vines, 

 being then found on the shoots. Even since the war and the subsequent 

 scarcity of labour, this work has been continued, and in 1916 the insects 

 did but little damage in the zone which they invaded in 1914. 



La Punaise bleue dans les Vignoblcs du Sud-Ouest. [Blue-bug in the 

 Vineyards of the .Soutii-W'est.J — Bull. Soc. Etude Vulg. Zool. 

 Agric, Bordeaux, xv. no. 9-10, September-October 1916, 

 pp. 110-111. 



A warning is given against confusing the blue bug {Zicrona coendea, 

 \j.), a very useful Heniipteron, with the flea-beetle {Halfica ampelo- 

 phaga, Guer.), a vineyard pest on whicli it feeds and which it very 

 closely resembles in appearance. 



Report of the Deli Experiment Station for the Year ended 30th June 

 1916. Med. Deli Proefslalion, Medan, x. no. 3, September 1916, 

 pp. rj8-59. [Received 21st November 1916.] 



Tobacco was greatly damaged by Prodenia, and on some low-lying 

 lands was also attacked by Helopelfis. The larvae of Acheroniia were 

 found experimentally to eat tobacco. The use of Paris green and lead 

 arsenate as insecticides is increasing, (ireat damage was done during 

 the year under report by Lasinderntn serricorne, although am])le supplies 

 of carbon bisulphide were obtainable. A beginning has been made of 

 a " black list "' of brands of tobacco, cigars and cigarettes infested bv 

 this beetle with the names of the firms selling them, and it is hoped that 

 the publication of this list will result in a better control in Egypt and 

 Europe. In one box of 50 cigars no less than 5,446 specimens were 

 found dead from want of food, nothing being left but the thickest part 

 of the midribs and the residue was a tine powder smelling strongly of 

 ammonia. Had the box .been opened two months earlier, it is probable 

 that some hundreds of beetles would have been set free, while the 

 manner and extent of their distribution would have been entirely 

 dependent upon the method adopted by the purchaser in returning it 

 to the vendor. 



De Trek made (Rups van den kleinen Winter vlinder, Cheinialobm brv- 

 ntiiid, L.) [The Processionary Caterpillar of the small Winter- 

 Moth.]- -3/erf. Phyfopath. Dienst, Waqeningen, no. 3, September 

 1916, 22 pp., 2 plates & 1 map. [Received 27th November 1916.] 



The life-history of Cheimatohia bncnuUa, L., is dealt ^^^th in detail in 

 this paper. When this pest appears in large numbers in orchards, the 

 damage done in Holland is very serious. The importance of control 

 measures is considerable, and these may double or even treble the 

 value of the crop. It is calculated that in the first year in which 



