1010] ECONOMIC ZOOLOGY — ENTOMOLOGY. ] 65 



and ' Souche Sldl' are quite virulent even in old cultures. 'Souche Sldl' Is 

 nut as pathogenic to M. atlanis and M. bivittatus :is 'Souche Cham.' No pas- 

 sage infectious with ' Souche Sldl' were attempted." No experiments were 

 made with the culture used by DuPorte and Vanderlech in Canada (E. s. EL, 



3S, p. 338) as a systematic study showed it to be Identical with d'Hei die's 

 " Souche Sidi " strain. 



A bibliography of 15 titles is appended. 



Notes on certain plant bugs connected with cotton in St. Vincent, .7. C. 

 Hutson {West Indian llul., 17 (1918), No. 1, pp. 27-89 ) .—These notes relate to 

 observations of the West Indian cotton stainer (Dysdercus delauneyi), the 

 green soldier hug (Nczara riridula), the leaf-footed tomato bug (Leptoglossus 

 balteatus), the red tomato bug (Phthia picta), the pea chink (Edcssa medita- 

 bttnda), etc., made in St. Vincent during a period of live weeks in November 

 and December, 1917. 



Some effects of cotton stainer control in St. Vincent, W. N. Sands (Wesf 

 Indian But,., 17 (1918), No. 1, pp. 40-46).— The results of control work with 

 Dysdereus delauneyi are reported upon, a summary of the results being pre- 

 sented in tabular form. 



Notes on trapping the cotton stainer in St. Vincent, W. N. Sands (West 

 Indian Bui., 17 (1918), No. 1, pp. 47-49). — These notes supplement the account 

 en the use of the gasoline torch jn destroying Dysdercus delauneyi, previously 

 noted (E. S. It., 38, p. 4G1). 



Insect enemies of the chinch bug, W. P. Flint (Jour. Econ. Ent., 11 (1918), 

 No. 5, pp. If 15-.'/ 19). — The author first reviews briefly records of the enemies of 

 the chinch bug and then reports observations of predacious enemies made dur- 

 ing the outbreak of the pest in Illinois from 1909 to 1915. 



Observations on the life history and habits of Pilophorus walshii, B. B. 

 Fulton (Ann. Ent. Soc. Amer., 11 (1918), No. 1, pp. 93-96).— This relates to a 

 species of black bug found in large numbers in a neglected apple orchard near 

 Geneva, N. Y. Aphids are said to constitute one of its chief sources of food. 



The dimorphs of species of Chaitophorus, A. C. Baker (Proc. Biol. Soc. 

 Wash., 31 (1918), pp. 85-88). — The author gives a key to and descriptions of 5 

 species. A species from Japanese maple at West Chester, Pa., is described as 

 new under the name C. japonicus. 



The apple woolly aphis (Eriosoma lanigera), G. G. Becker (Arkansas Sta. 

 llul. 154 (1918), pp. 3-22, figs. 6). — This is a progress report of Investigations of 

 the woolly apple aphis, a paper relating to which, and carrying the same con- 

 clusions, has been previously noted (E. S. It., 39, p. 25S). 



Ceroplastes grandis new to Argentine fauna, C. Lizer (Physis, 2 (1916). No. 

 12, p. 438; abs. in Rev. Appl. Ent., Set: A, 6 (1918), No. 6, p. 225).— The scale 

 C. grandis is recorded from Argentina on Ilex paraguariensis. 



On the occurrence of Chrysomphalus paulistus in the Parana Delta, C. 

 LlZEE (Physis, 2 (1916), No. 12, pp. 432, 433; abs. in Rev. Appl. Ent.. Ser. A, 6 

 (1918), No. 6, p. 225). — This scale is recorded from Sao Paulo, Brazil, on the 

 sweet bay (Laurus nobilis) and olive (Olea curopcra). 



Impregnation of the underwear as a means of controlling the clothes louse, 

 W. Moore (Jour. Amer. Med. Assoc., 71 (1918), No. 7, pp. 530, 531). — In the 

 author's investigations here reported creosote and heliotropin, often known 

 under the name piperonal, gave the best results. 



" A strip of underwear containing a 10 per cent solution of creosote in lubri- 

 cating oil, used at the rate of 1 cc. to 8 sq. in. of underwear, worn next to the 

 skin, was effective for 24 hours, after which it was found to have lost its 

 toxicity. Surprising results were obtained with heliotropin, which was effec- 

 tive for only 48 hours when worn. . . . 



