350 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 4 



Tests of Sprays against the European Fruit Lecanium and the 

 European Pear Scale, by P. R. Jones. U. S. Dep't Agric, liur. Ent. 

 Bui. 80, Prt. 8, p. 149 00. 1910. 



This publication is of special value to the economic entoip.ologist, since it gives 

 details of field tests against Lecanium corni Bouch6 and also Epidiaspis pyricola Del 

 Guer. The author finds that winter treatments with five or six per cent distillate oil 

 emulsion with and without caustic soda, and a twelve per cent crude oil emulsion are 

 effective in controlling both of these pests without injury. Caustic soda and creosote 

 oil emulsion sprays, while effective in destroying the insects and lichens, are also in- 

 jurious to the trees. Several excellent illustrations add greatly to the value of this 

 publication. 



Medullary Spots." A Contribution to the Life History of Some 

 Cambium Miners, by J. G. Grossenbacher. N. Y. Agric. Exp't 

 Sta. Tech. Bui. 15, p. 49-65. 1910. 



This records the discovery of Opostegn nonstrigdla Chamb. as a cambium miner 

 in currants. The study shows this species to be callable of causing direct injury and 

 also, as a result of its operations, facilitating serious fungous infection. The various 

 stages of the insect are described, the original account of the moth reproduced and 

 our knowledge of European species summarized. There is an excellent series of 

 illustrations. The author is to be congratulated on having discovered the larva in 

 this country. 



The Smoky Crane-Fly, by James A. Hyslop. U. S. Dep't Agric, 

 Bur. Ent. Bui. 85, Prt. 7, p. 119-32. 1910. 



This paper records serious injury to Japanese clover, Lespedeza striala, in Tennes- 

 see by the smoky crane-fly, Tipula iiifuscata Loew. The life history and habits of 

 this species are carefully worked out and a summary given of the more important 

 records of injury by Tipulid larvse. There is also a list of birds, compiled from the 

 records of the Bureau of Biological Survey, known to feed to a greater or lesser extent 

 upon the Tipulidse or their eggs. This bulletin, with its admirable series of illustra- 

 tions, forms an excellent basis for further studies in this group. 



The Control of the Argentine Ant, by C. W. Woodworth. Cal. 

 Agric. Exp't. Sta. Bui. 207, p. 53-82. 1910. 



This is a well illustrated bulletin discussing the Argentine ant and other For- 

 micidae. It is somewhat technical in that it gives keys to subfamilies and genera 

 and lists the species found in California. The admirable series of illustrations and 

 the keys will be very helpful to students of the California fauna. The author states 

 that there are in California about forty colonies of the Argentine ant distributed 

 over some 5,000 acres. Under control measures he gives prominence to the excluding 

 of the pests and ant-proof construction. The use of carbon bisulfid, a solution of 

 potassium cyanide or a sweetened arsenical preparation is advised for the destruction 

 of these pests. 



Some Common Bag Worms and Basket Worms, l)y Claude 

 Fuller. Natal Dep't of Agric, Bui. 16, p. 1-11. 1909. 



The natal bag worm fauna, judging from the acocunts, is a most interesting one. 

 This publication is a popular discussion of Psychidae larva; with observations. 

 upon a number of species. Unfortunately, the latter are designated only by common 

 names. The excellent illustrations add greatly to the value of this contribution to 

 entomological knowledge. 



