554 EXPERIMENT STATION RECORD. 



which cause much damage to sugar cane in liritish Guiana. Egg parasites 

 of these pests are said to be particuhu'ly effective, at times as high as 95 per 

 cent of the eggs in the field being parasitized. 



A wood-boring moth {Agr. ^^ews [Ii(irhado)i], 13 (19 Vt), No. 325, p. 328).— 

 This is a discussion of Diiomitiis punvtifcr, an account of which is included 

 in the paper by Bovell and Nowell previously noted (E. S. R., 31, p. 547). The 

 larva of this moth is injurious to a wide range of trees and shrubs and is 

 generally distributed in the Lesser Antilles. It tunnels in the whitewood tree 

 (Tecoma Icucoxylon) in all directions in the larger branches and through the 

 middle of the smaller ones even to fine twigs. Its life history is said to resemble 

 closely that of the leopard moth (Zeuzera pyrina). 



Relation between the larvas of vine moths (Cochylis ambiguella and Poly- 

 chrosis botrana) and the weeds of vineyards and other plants, G. Llstneb 

 (Ztschr. Wciiibau u. WcinheUandl., 1 (lOUf), No. 1, pp. 3-35; aba. in Internat. 

 Inst. Agr. [Rome}, Mo. Bui. Agr. Intel, and Plant Diseases, 5 (lOl-i), No. 6, p. 

 826). — In experiments carried out in the fall Cochylis larvae were observed to 

 be distinctly polyphagous, even devouring euphorbiaceous plants. Experiments 

 with Polychrosis larv£e conducted in the spring showed them to be equally 

 polyphagous. 



Contribution to the study of the biology of Hyponomeuta malinella in 

 Roumania, G. Fintzescou (Rev. Sci. Bourbon., 27 (1914), No. 3, pp. 78-80; 

 abs. in Rev. Appl. Ent., 2 (191^), Ser. A, No. 9, p. 56J,).— The author, who has 

 studied this lepidopteran for many years, reports that there are three genera- 

 tions each year in Ronuiania. 



The bacterial diseases of caterpillars, R. W. Glaser (Psyche, 21 (1914), 

 No. 6, pp. 184-190). — ^This is a brief review of the literature relating to the 

 subject. 



The author states that while there seems to be a considerable amount of 

 collateral evidence that caterpillars are subject to bacterial diseases, he is not 

 familiar with a single case where this has been conclusively proved. It is 

 pointed out that many of the authors reviewed agree that the flacherie-like 

 diseases are primarily intestinal affections and that the bacteria concerned 

 are found outside of the intestine, in the body cavity, only during the later 

 stages when the alimentary canal ruptures. 



" While it therefore seems possible that some of the caterpillar diseases nov/ 

 grouped under the name of flacherie are intestinal disturbances caused by 

 toxic products liberated within the alimentaiy tract by specific bacteria, it is 

 not at all unlikely that other diseases affect other parts of the body, such as 

 the disease described by I'icard and Blanc [E. S. R., 29, p. 855]. The entire 

 subject, however, is still one for controversy." 



A bibliography of 14 titles is appended. 



[Cecidomyiid flies attacking willows] (Bui. Soc. Nat. Acclim. France, 61 

 (1914), No. 1, pp. 24, 25). — The habits of two cecidomyiids, Rhabdophaga rosaria 

 and R. pulrhil, which are at times a source of serious injury in oseries are 

 briefly considered. Salix purpurea, S. depressa, vS. aurita, and S. cinerea are 

 the species that suffer most from their attack. 



Economic and biologic notes on the giant midge (Chironomus (Tendipes) 

 plumosus), A. C. BuRRiLL (Bui. Wis. Nat. Hist. Soc.. n. ser., 10 (1913), No. 

 3-4, pp. 124-163). — This paper deals at some length with the life history and 

 habits of this midge, its natural enemies, economic importance, and remedial 

 measures. An annotated bibliography of 14 pages is appended. 



Mosquitoes and sewage disposal, F. Knab and A. Busck (Amer. Jour. 

 Trop. Diseases and Prev. Med.. 2 (1914), No. 5. pp. 333-338) .—The authors 

 point out that, certain species of mosquitoes, particularly Culcx pipiens and 



