356 EXPERIMENT STATION KECOBD. 



the food habits of ](> iniportaut sijecies of woodpeckers, and points out the ex- 

 tent to which each is beneficial or injurious. While most woodpeckers are 

 highlj' beneficial, the sapsuckers are injvn-ious, since tliey subsist to a consider- 

 able extent on the cambium or inner bark of trees. 



Index-catalogue of medical and veterinary zoology, C. W. Stiles and A. 

 Hassall {U. S. Dept. Agr., Bur. Anim. Indus. Bui. 30, pt. SJf, pp. IV+2583- 

 2654). — This part lists the literature by authors from Werlhof to Xf'mard. 



Forty-first annual report of the Entomological Society of Ontario, 1910 

 (Ann. Rpt. Ent. Soc. Ontario, J/J {t'JlO), pp. 12',, pJa. 3, /?f/.s'. 23).— Among the 

 papers of economic importance presented in this report are accounts of the oc- 

 currence of insects during the year, by A. Gibson, L. Caesar, C. G. Hewitt, 

 T. W. Fyles, and others; the seed corn or bean maggot (Pcgomyia fu.scnccps) 

 In Ontario in 1910, by J. E. Howitt; the horse-radish flea beetle (Phyllotreta 

 armoracicc) , by A. F. Winn; the migration of some native locusts, by N. Grid- 

 dle; some observations on the pi'actical importance of the study of parasitic 

 insects, by C. G. Hewitt ; the Coccidfe of Canada and the Aleyrodidse of Ontario, 

 by T. D. Jarvis; some insects of the larch and insect notes from Ste. Anne's, 

 by J. M. Swaine ; and basswood or linden insects, by A. Gibson. 



Second report of the state entomologist, C. P. Gillette (Ann. Rpt. Bd. 

 Hort. Colo., 1910, pp. 167-191, pis. 2).— This is a detailed report of the horti- 

 cultural inspection work for the year 1910. 



Report of the entomologist, I). T. Fullaway (Hawaii Sta. Rpt. 1910, pp. 

 19-24). — ^An account of the occurrence of injurious insects during the year. 



On one plantation pineapple plants were badly damaged in the fall by an 

 introduced locustid (Xiphidium varipenne) which attacked the leaves, making 

 large abrasions that permitted the entrance of fungi and caused the leaves to 

 wilt and die back. The eggs of this locustid are highly parasitized, however, 

 and it is not likely to become a serious pest. The edible nuts of the litchi ti'ee 

 in several Honolulu gardens were badly attacked in July by a tortricid moth 

 (Cryptophlebia illepida), the larvae of which bore into the succulent fruit and 

 render it unfit for use. In one orchard the entire crop was destroyed. 



A brief report is made on introductions of parasites of the algaroba weevil 

 in cooperation with the Bureau of Entomology of this Department. Lists are 

 given of the insects Hint Jittackcd corn, wheat, barley, jack bean, and cotton. 



Report of the department of entomology, W. O. O'Kane (Neio Hampshire 

 Sta. Bui. 151, pp. 89-46). — This is a report of the department for the biennial 

 period ended. October 30, 1910. 



One of the principal investigations was that of the apple maggot or railroad 

 worm, of which a brief summary of the results obtained to date is here pre- 

 sented. The author states that 95 iier cent of the orchards of the State were 

 found to be more or less infested by this pest. Seventy-one varieties have thus 

 far been studied to determine their susceptibility to attack, and certain varieties 

 found especially susceptible, others only occasionally infested, and 1 or 2 

 varieties practically immune. Studies of apples in cold storage show that as a 

 rule deterioration is more rapid in the case of infested fruit. 



The author finds that the first eggs are laid soon after the flies begin to 

 emerge, about July 2 to 5, and that egg-lying continues through July and 

 August, and probably into September. It is stated that this is true regardless 

 of variety, except that the eggs are not laid in early apples after they have 

 ripened and dropped from the tree. It was found that where winter fruit 

 such as the Biildwin becomes infested, the early drops falling in August may 

 easily become sutHciently mellow to permit the maggots to mature. On the 

 other hand badly infested Baldwins gathered early in October failed to mature 

 a single maggot and the same was found to be true of russets. Thus in the case 



