1917] ECONOMIC ZOOLOGY ENTOMOLOGY. 847 



recorded as of economic importance, became injurious to crops in Arizona. 

 These consist of a nitidulid beetle {Conotelus mexicanus) destructive to fruit 

 blossoms, a variety of false chinch bu^' {Nysius minutus) destructive to flaxseed, 

 a cotton stainer {Dxjsdercus ulbidiventris) injurious to cotton bolls, and a red 

 spider (Tetranychus modestus) injurious to corn. Aside from these, the most 

 noteworthy insect records of the year consist of that of a cornstalk borer, 

 thought to be the larger cornstalk borer {Diatrcea zeacolella), and that of an 

 apparently new moth borer of pear trees. 



Annual report of the State entomologist for 1915, E. L. Woesham (Ga. 

 Bd. Ent. Bui. 45 (191G), pp. 31, pi. 1, figs. S). — This reports upon the occurrence 

 of the more important insects of the year in Georgia, particularly the boll 

 weevil, and includes an account by I. W. Williams of cotton breeding work, 

 of truck crop pests and miscellaneous insects affecting shade trees and 

 ornamental plants, a report by C. S. Spooner on pecan pests, etc. A map 

 showing the area in Georgia infested by the boll weevil in 1915 and the quar- 

 antined area in 1916 is attached. 



Report of the division of entomology for the biennial period ending 

 December 31, 1916, E. M. Eiirhorn {[Bien.'] Rpt. Bd. Comrs. Agr. and For- 

 estry Uatoaii, 1915-16, pp. 79-109, pi. 1). — This, the usual biennial report on 

 inspection and other work of the year (E. S. R., 34, p. 59), includes a classified 

 list of the insects collected. A report by D. T. Fullaway on beneficial in.sects 

 (pp. 105-109) deals briefly with the parasites of the melon fly, corn leaf- 

 hopper, fruit fly, mealy bug, and horn fly, and gives a tabulated list showing 

 the liberation of beneficial insects in 1915-16. 



Report of the economic biologist, G. E. Bodkin {Rpk Dept. Set. and Agr. 

 Brit. Guiana, 1915, App. 3, pp. 10). — The author reports upon the occurrence 

 of and work with the more important insect pests of the year in British 

 Guiana. 



Observations on some insects attacking rice, F. Supino {R. 1st. Lombardo 

 Sci. e Let. Rend., 2. ser., 49 {1916), No. 2-3, pp. 108-114) .—Three aquatic in- 

 sects that are of importance in rice fields near Milan are reported upon by the 

 author, namely, ^tratiomys chamwleon, Tricenodes hicolor, and Eydrocampa 

 (Nymphula) nympliwata. 



Wild vegetation as a source of curly-top infection of sugar beets, P. A. 

 BoNCQUET and C. F. Stahl (Jour. Econ. Ent., 10 (1917), No. 4, pp. 392-397, pis. 

 2). — Malva rotundifolia, a common weed in sugar beet fields, has proved to be 

 at least a symbiotic host of the virulent factor of curly-top of sugar beets. 

 Beet leaf hoppers, which were known to be nonvirulent when placed on sickly- 

 looking mallow plants in the field and subsequently on healthy beets, produced 

 curly-top in four experiments. " Insects known to be virulent were placed 

 on healthy seedlings of M. rotundifolia. After a certain lapse of time they 

 were removed and replaced with nonvirulent insects which were later trans- 

 ferred to healthy beets. All transfers brought about the disorder." 



Meadow and pasture insects. — Practical methods of control for the more 

 common forms, H. Osbokn {Mo. Bui. Ohio Sta., 2 {1917), No. 8, pp. 268-273).— 

 A brief discussion of meadow and pasture insects and means for their control. 

 The difficulties to be met with in their control are pointed out and' emphasis 

 placed upon the importance of crop rotation. The control measures applicable 

 for permanent pastures and meadows consist of burning, hopperdozers or hopper 

 catchers, baiting, and trap lights. Brief reference is made to their natural 

 enemies. 



Insects that factor in the grading of apples, P. J. Parrott {West. N. Y. 

 Hort. Soc. Proc, 62 {1917), pp. 72-81, figs. 2; Rochester, N. Y.: Davis and Jeens 

 Printing Co., 1917, pp. 10, figs. 2). — An address, delivered before the Western 



