460 EXPERIMENT STATION RECORD. [Vol. 36 



The cochylis, H. Faes and F. Porchet (In La Station Viticole Cantonale 

 Vaudoise de Laiisanne des Sa Fondation d Son Transfert d la Confdderation 

 Suisse, 1886-1916. Lausanne: Dept. Vaud. Agr., 1916, pp. 56-76).— This article 

 deals with the manner of combating the caterpillar, the pupa, and the adult, the 

 use of natural enemies in dealing with the cochylis, etc. A discussion of 

 Eudemis botrana, etc., follows. 



Reducing malaria by reducing the number of Anopheles within buildings, 

 J. Zetek {Ann. Ent. Sac. Amer., 9 (1916), No. 3, pp. 275-283, figs. 3).— The 

 author's observations here reported, which are largely applicable to temporary 

 construction camps in malarious regions, show that screening, traps, and 

 mosquito catching indoors will suffice to keep malaria at a verj' low rate. 



Ronald Ross and the prevention of malarial fever, W. C. GomiAS and F. H. 

 Gakeison {Sci. Mo., 3 {1916), No. 2, pp. 133-150, pi. i).— Following a historical 

 review of the work relating to the transmission of malaria by mosquitoes, the 

 authors describe at length that of Ross and his demonstration of the role of 

 Anopheles in the transmission of malarial parasites. 



Syrphidse of Maine, C. L. Metcalf (Maine Sta. Bui. 253 (1916), pp. 193-264, 

 pis. 9, fig. 1). — The first part of this bulletin consists of a general account of 

 the .Syrphidffi and particuhirly of the structure of the larvte of the several 

 types, namely, the aphidophagous, boring, short-tailed filth inhabiting, long- 

 tailed (rat-tailed) filth inhabiting, and microdon types. The economic impor- 

 tance of the larvae, including their beneficial and injurious habits, the eco- 

 nomic importance of the adults, and practical measures for increasing the num- 

 ber of Syrphidse, are next discussed. A list of 20 species of Syrphidse 

 reared from eggs in 1915, nine of which have apparently not previously been 

 described in the immature stages, and a list of 39 species of Homoptera 

 attacked by Syrphida? in Maine as observed in 1915 are next given. Descrip- 

 tions of life stages and life histories of ten Maine forms studied by the author, 

 together with artificial keys to the known larvce and pupae of Syrphidse, make 

 up the main part of the work. The species thus considered and illustrated 

 are Pipiza pisticoides, Melanostoma mellinum, Sphcerophoria cylindrica, Allo- 

 grapta obliqua, Syrphus americanus, S. torvus, S. nitens, Didea fasciata, 

 Tropidia quadrata, and Syritta pipiens. 



A glossary is given of the new or unusual terms used, together with a 

 bibliography of GG titles. 



The attraction of Diptera to ammonia, C. H. Richardson (Ann. Ent. Soc. 

 Amer., 9 (1916), No. 4. PP- 40S-413). — Substantially noted from another source 

 (E. S. R., 3G, p. 156). 



A contribution to the knowledge of dipterous larvae and pupae, J. C. H. de 

 Meijeue (Zool. Jahrb., AM. System. Geogr. u. Biol. Tiere, 40 (1916), No. 3-4, 

 pp. 177-322, pis. 11). — This paper describes the larval and pupal stages of some 

 25 forms. 



The transmission of disease by flies, E. A. Sweet (Pub. Health Kpts. [U. S.], 

 Sup. 29 (1916), pp. 20, pis. 2, figs. 2). — A general discussion of flies and the 

 role which they may play in the transmission of disease, their ener.iies, and 

 eradicative measures. 



Sciara maggots injurious to potted plants, H. B. Hungerford (Jour. Econ. 

 Ent., 9 (1916), No. 6, pp. 538-549, pis. 2).— "The life history of Sciara copro- 

 phila requires a period of from 24 to 32 days. The egg stage occupies 6 days, 

 the maggot stage 12 to 14 days or longer, the pupa stage 6 days, and the adults 

 have lived under laboratory conditions about a week. 



"The maggots, though omuiverous feeders, are injurious to potted plants 

 through their feeding upon the roots and root hairs. Soils that are moist and 

 rich in m:uiur(> or dried blood attract the flies and lead to tlie laying of l.-irge 



