56 



Fernald (H. T.) & Bourne (A I.). Report of the Department of 



Entomology. — 33rd Ann. Rept. Mass. Agric. Expt. Sta., 1920, 

 Amhcyst, 1921, pp. 36a-43a. [Received 29th November 1921.] 



Further data are required concerning the best time for spraying 

 for codhng-moth [Cydia pomonella] ; it is hoped that an early appli- 

 cation of lead arsenate, about two weeks after the calyx spray, will 

 be successful, as then it can be combined with a fungicide, whereas 

 the usual application, four weeks after the calyx spray, is too late 

 for this. Observations have been made on the seasonal appearance 

 of some common Coccids, and studies of the squash vine-borer [Melittia 

 satyr inif or mis'] and squash bug [Anasa tristis] have been carried out. 



Tests with several proprietary spray materials were made. White 

 arsenic, with Bordeaux mixture, prepared on the lines described by 

 Sanders and Kelsall in Canada [R.A.E., A, viii, 150], provided that 

 a very finely divided arsenic is used, was profitable, at least as a spray 

 for potato pests, and proved far cheaper than lead arsenate, either 

 in powder or paste form. Studies have been made of the composition 

 of certain dry sulphides as substitutes for lime-sulphur concentrate, 

 though there has been no opportunity for field tests with them. Lime- 

 sulphur concentrate (1:8) proved much cheaper than dry lime-sulphur, 

 barium tetrasulphide or soluble sulphur ; these substances, at the 

 strengths advised by their makers, will have much less of the active 

 agent present, and should be far less effective. It is thought that 

 the concentrate may prove effective at a weaker strength than that 

 hitherto used. 



No outstanding infestation of any insect is recorded for the year. 

 The gipsy-moth [Porthetria dispar] was reported from Amherst for the 

 first time, but in small numbers. 



L.\MBiLLiox (L. J. L.). Zophodia Hb. convolutella Hb. ou en est 

 son Histoire naturelle ? [What is the Life-history of Zophodia 

 convolutella, Hb. ?] — Rev. Mens. Soc. Ent., Namiir, xxi, no. 11, 

 November 1921, pp. 41-43. 



Continuing his investigations on a gooseberry pest thought to be 

 Zophodia convolutella [R.A.E., A, ix, 474], the author has taken 

 23 larvae of this moth in the third stage from gooseberry plants, and 

 has found experimentally that they will attack the fruit of more 

 than one variety of gooseberry. A small Ichneumonid, probably a 

 species of Microgaster, was reared from the larva. The Tortricid, 

 Tortrix {Cacoecia) podana, Sc, and the Pyralid, Pionea prunalis, 

 Schiff., were found infesting the leaves of gooseberry plants. 



Frogg.\tt (W. W.). a Descriptive Catalogue of the Scale-insects 

 ("Coccidae") of Australia. Part in.^iV.S.IF. Dept. Agric, 

 Sydney, Sci. Bull. 19, October 1921, 43 pp., 23 figs. 



Psendopsylla hirsutus, gen. et sp. n., on Eucalyptus; Sphaerococciis 

 cantentulatns, sp. n., on Acacia pendula ; 5. neu'manni, sp. n., and 

 S\ turhinata, sp. n., on Melaleuca sp. ; and Palaeococcus dyniocki, sp. n., 

 on the basal stems of an undetermined shrub, are described. 



