ECONOMIC ZOOLOGY ENTOMOLOGY. 57 



and other diseases. The sulithnr and lime mixUire is reeoimiiended as the most 

 eOieient and cheapest remedy for the control of the San Jose scale and it also 

 has the advantage of ehecking a number of fungus diseases. Practical sug- 

 gestions are made regarding the selei-tion of spraying machinery and the time 

 and m(>thod of application of insecticides and fungicides to orchard and otlun- 

 erops. 



Spraying calendar, L. K. Taft and C. I). Smith {JilicliiiHiii <S7(/. >S'/>ec. Bid. 

 ;Uk fo'io). — Formulas are given for the preparation of staiKhird insecticides and 

 fungicides and dates are recommended for the application of these materials in 

 the control of the chief insects and fungus diseases of various <-ultivated plants.' 



The biology of Litomastix truncatellus, F. Silvestri {A)in. I', f^ciiola Sup. 

 A(/r. Portivi. 2. so:, 6 (VJOd). tip. 1-51, pis. //, figs. 13). — This species was taken 

 as an example of hymenopterous parasites and all features of its biology were 

 studied in detail, beginning with the development of the young parasite in the egg 

 of I'lusia f/aniiita, its host. 



According to the author's observations the larval life of the parasitized Plusia 

 is 3 or 4 days longer than that of healthy larvte and the larva reaches a greater 

 size than is normally the case. The generations of the parasite correspond 

 strictly with those of the host insect. 



Parasites of leaf-hoppers. Leaf-hoppers, R. C. L. Perkins and C. W. 

 KiRKALDY (Haiiaiidii Sitpur PUi liters' Htii., Div. Ent. Bui. //, pp. G6). — The de- 

 scriptive material contained in this bulletin is based almost entirely on studies 

 of leaf-hoijpers and their parasites collected by Koebele in Arizona. The new 

 species and genera of hymenoptera noted in the report belong chiefly to the 

 family Dryinidjie, but other families are represented. A number of new genera 

 and species of leaf-hoppers are also described. 



Hosts of insect egg parasites in North and South America, A. A. Girault 

 (rsychc, I'l (1901), \(i. :i, pp. 21-39). — A classified list is given of host insects 

 the eggs of which are attacked by true egg parasites, together with a bibliography 

 relating to the sul).iect. 



[Report of] the lecturer in apiculture, H. li. Rowsome (Ann. Rpf. Onniiiti 

 Agr. Col. and Expt. Farm, 32 (19(16), p. 211).- — An experiment was tried in pro- 

 tecting colonies of bees in order to increase the heat inside the colonies during 

 the time of the most active manufacture of wax. It has been found that in 

 exceptionally mild winters there is little benefit from the use of too expensive 

 and elaborate arrangements of protecting bees." 



Breeding bees by selection, F. W. L. Sladen (Brit. Bee Jour., 3'> (1907), Xo. 

 129<>. pp. lii'i. 16')). — Attention is c-alled to the difficulty of carrying on breeding 

 experiments with l)ees, particularly in being sure of the ancestry of drones 

 selected for this purpose. In most localities it is practically impossible to find 

 for I)reeding experiments an isolated place in which no other bees are raised. 

 The best system of selection appears to be the one in which dependence is placed 

 ui»on the color of the bees. 



A method of swarm control, W. C. Lyman (Amer. Bee Jour., Jfl (1907), 

 A'o. 20, pp. -'ill-'il3. figs. }). — A description is given of a device tested by the 

 author in which swarming is controlled in a satisfactory manner. A brood 

 chamber is connected with the main hive by means of a passage which opens in 

 front near the entrance to the main hive. The bees are thus given additional 

 room for rearing the brood and for accommodating the increasing colony without 

 the necessity of swarming. 



Handmade comb foundation, J. Sureaud (Apiculteur, 51 (1907). No. 3, 

 pp. ll.')-120). — The difticulties and advantages of preparing comb foundation at 

 home are briefly outlined by the author, who has had considerable experience 



