ECONOMIC ZOOLOGY — ENTOMOLOGY. 553 



The losses are increasing each year with the spread of the pest. The infesta- 

 tion has not as yet occurred to such an extent as to cause noticeable defolia- 

 tion, but the losses incurred by the worms feeding upon the fruit in several 

 orchards has appi'oached 40 per cent of the entire crop. The injury was even 

 more severe on trees in light bearing, where the percentage of injury amounted 

 to more than 50 per cent. 



A series of experiments with lead arsenate, crude-oil emulsion, kerosene emul- 

 sion, distillate emulsion, and a miscible oil were carried on in order to deter- 

 mine the most advantageous method of control that could be employed under 

 Hood River Valley conditions. In comparing the results of application of 

 lead arsenate at different strengths it was found that none controlled the leaf 

 roller, although some benefits were derived from an application as weak as 2 

 lbs. to 50 gal. of water. When used within the bounds of economy, both kero- 

 sene emulsion and distillate emulsion were found to be lacking in sufficient 

 penetrating qualities to be of value in destroying the leaf roller eggs. The re- 

 sults obtained with criide oil as a means of control proved disappointing, but 

 those obtained from the use of miscible oil for the destruction of the eggs were 

 highly satisfactory in every way. 



Concerning the traubenwicklers (Clysia [Cochylis] ambiguella and Poly- 

 chrosis botrana), and methods of combating them, E. Schwangakt (Ueber 

 die Trauhenwkldcr (Clysia [Conchylis] ambigueUa und Polychrosis botrana) 

 vnd Hire Bekdmpfung, mit Beriicksichtigung natiirUcher Bekdmpfiingsfaktoren. 

 Jena: Gustav Fischer, 1913, pt. 2, pp. 195, pis. 9, figs. 9). — This second part of 

 the work previously noted (B. S. R., 26, p. 655) reports at some length upon 

 investigations of control measures for these grape berry moths, particularly of 

 their natural enemies. 



Two new species of Coleophora, C. Heineich (Insecutor Inscitio Menstruus, 

 3 (1915), No. 11-12, pp. 143, IH). — Coleophora lentella, reared from a larva 

 found mining the leaves of sweet birch (Bctula lenta) at Great Neck, Long 

 Island ; and C. gaylussaciella, reared from a larva found feeding on huckleberry 

 (Gaylitssacia baccata) at Falls Church, Va., are described as new to science. 



Leaf miners, particularly those occuring in Finland, W. M. Linnanzemi 

 (Acta Soe. Fauna et Flora Fennica, 37 (1913), No. 4, pp. 138, pis. 9). — ^An ex- 

 tended account of leaf miners, including reproductions of photographs illustrat- 

 ing their work and a bibliography of 11 pages. 



Larch shoot moths (Jour. Bd. Agr. [London], 22 (1915), No. 1, pp. 50-52, 

 pi. 1). — A brief description is given of Argyresthia atmorieUa, its life history, 

 plants attacked, nature of injury, and methods of control. 



Some modifications of the hjrpopharynx in lepidopterous larvae, J. J. 

 DeGryse (Proc. Ent. Soc. Wash., 17 (1915), No. 4, pp. 173-179, pis. 3, fig. 1). 



Anopheline surveys. — Methods of conduct and relation to antimalarial 

 work, R. H. voN Ezdorf (Pub. Health Rpts. [U. S.], 30 (1915), No. 18, pp. 

 1311-1320, pis. 3). — A description of the method of procedure. 



Notes on the species of Culex of the Bahamas, H. G. Dyae and F. Knab 

 (Insecutor Inscitiw Menstruus, 3 (1915), No. 8-10, pp. 112-115). 



New Ceratopogoninae from Peru, F. Knab (Insecutor Inscitiw Menstruus, 

 3 (1915), No. 8-10, pp. 109-111). 



On a dipterous parasite of a mycetophilid larva, W. R. Thompson (Compt. 

 Rend. Soc. Biol. iParisI, 78 (1915), No. 5, pp. 87-89, fig. 1).—An undetermined 

 dipteran occurring in France is reported to parasitize the larva of a myce- 

 tophilid of the genus Sciara. It is pointed out that only two dipterous species 

 have hitherto been recorded as internal parasites of other dipterans; both are 

 tachinid parasites of tipulids. 

 31501°— No. 6—16 5 



