563 



expense of their fat-bodies. The cessation of flight is also due to 

 physiological causes, and is not connected with the finding of places 

 suitable for the oviposition. 



A full description of the phases of both species is given in this 

 important and interesting paper. 



Dry (F. W). The Egg Parasites of the Coffee Bug {Antestia 

 Imeaticollis Stal) m Kenya Colony.- 5/^//. Ent. Res., London 

 xii, pt. 2, September 1921, pp. 191-201. 



Some of the information here given concerning Hadronotus antestiae 

 and -r^/^«om?«^n^;zca^?i;g;z^ns parasitising ^wfe5^?:a/mm^/co/fe Stal has 

 already been noticed [/?. J. £, A, vii, 406], the parasites being referred 



to as A and 'B- respectively. The present observations show that 

 Telenomus passes through its life-cycle rather more quickly than 

 Hadronotus, but in hotter weather the life-cycle of the latter is more 

 accelerated in proportion. Under laboratory conditions more females 

 than males were bred from H. antestiae, whereas in T. truncativentris 

 the proportion of males was greater. The highest number of offspring 

 rom one individual of H. antestiae was 34, and from T. truncativentris 

 the host"""^ ^""^ parasite has never been reared from one egg of 



Of 16,531 eggs of Antestia lineaticollis collected between Tulv 1917 

 and September 1920, 78 per cent, were parasitised, the month v 

 percentage of parasitism ranging from 54 to 90 per cent 



Many eggs that are parasitised do not give rise to parasites The 

 cause of this has not yet been investigated, but it is not improbably 

 due to the presence of superparasites and hyperparasites. The 

 variations m the frequency of the two species are considerable but 

 the numbers over a long period are fairly evenly balanced 



Antestia nsn^Wy exists in plantations in smaU numbers only but 

 wherever it was foiind, parasitised eggs were also always present 

 Ihese parasites have been known to control outbreaks of Antestia 

 without artificial measures being taken. Antestia 



Evans (H H.). Codling Moth Control in British Columbia— ^ a„v 



JL, Victoria, B.C., vi, no. 7, September 1921, pp. 170-171, 3 ficrg." 



This' is a brief review of the economic importance of the codhne- 

 moth, Gy^,a pomonella, in British Columbia. Between 1905 and 

 1920 sixteen, or possibly seventeen, outbreaks have been discovered • 

 of these ten have been completely eradicated, and the work is sfll 



success. In 1920 the average cost of spraying against codhng moth 

 Tw V f ^Y?' ^" '^^ Wenatchee distric? of^he adjoinin| StTe 

 of Washington, but in spite of this over £200,000 worth of fruit was 

 rendered unmarketable. If a relative degree of infestation wire pres n 



1. if .? ''''^^^'] ^^^^^y *°-^^y' t^e loss would be over /lOO 000 to 

 which the cost of remedial measures must be added 



Frmt-refrigerator cars appear to be the chief cause of infestation 

 and a system of inspection now exists, while it is hoped to devise a 

 practical method of superheating such cars in order to destroy aU 

 insect life. The measures at present used are quarantining infested 

 areas, spraying banding, fruit inspection, car inspection, Imd crop 

 Scessa?y"' ^^°^^°"^"^g P^^^^^ i" districts where i proves to 



(4873) 



