552 EXPERIMENT STATION RECORD. [Vol.41 



substance in the louse sufficiently toxic to give rise to a generalized skin erup- 

 tion and mild fever. The details of four cases are reported. 



The biolog'y of Pediculus humanus, G. H. F. Nuttall {Parasitology, 11 

 (1919), No. 2, pp. 201-220, pi. 1, fig. 1). — These notes, supplementing the mono- 

 graphic account previously noted (E. S. R., 38, p. 765), deal with color and 

 light reactions ; the influence on lice of temperature conditions in clothing 

 and the absorption of radiant heat by cloth ; the influence of black, white, and 

 colored backgrounds and of colored screens upon pigmentation in lice, proving 

 that pigmentation is not hereditarily transmitted ; and the relative proportions 

 of the sexes. 



Beport on typhus conditions in native dwellings, C. K. Beaix {Union So. 

 Africa, Dept. Agr. Local Ser. 51 {1919), pp. 20, pis. 4)- — This is a report of an 

 investigation conducted in the native territories and eastern Cape Province, 

 where the fever now recognized as typhus has existed for at least 30 years 

 and where, between the early part of 1916 and October, 1917, a widespread 

 epidemic occurred. The investigations have led to the conclusion that the 

 disease is identical with European tj^hus and that the chief means of trans- 

 mission is the body louse. 



Notes on the tussock moth (Hemerocampa vetusta gulosa) in British Co- 

 lumbia, W. B. Anderson {Agr. Gas. Canada, 6 {1919), No. 2, p. 139).— The 

 author records the devastation of a grove of young Douglas fir {Pseudotsvga 

 mucro)iat(') at Hedley in the Similkameen Valley, B. C, by 11. vetusta gnlosa. 



The European corn borer, J. S. Houser {Mo. Bui. Ohio Sta., Jf {1919), No. 6, 

 pp. 185-190, figs. 8). — A brief summarized account, in which attention is called 

 to the importance of the pest. 



The history of the codling' moth in British Columbia, R. C. Treherne '{Agr. 

 Gas. Canada, 6 {1919), No. 1, pp. 19-24, fiff- !)■ — This discussion includes an 

 account of investigations conducted by the Dominion entomologist during 1916, 

 1917, and 1918. 



Some characteristic differences in the pink bollworm and Pyroderces sim- 

 plex, R. Averna-Sacca {Bol. Agr. [Sao Paulo], 19. scr.. No. 8-12 (1918), pp. 

 656-665, figs. 4)- — The differentiation of these species is discussed. 



Physiological and parasitological studies of economic Lepidoptera, O. 

 Gautier {Cornpt. Rend. Soc. Biol. [Paris], 81 (1918), No. 22, pp. 1152-1155).— 

 In this article, which is in continuation of previous studies (E. S. R., 40, p. 263), 

 the author deals with the oviposition of Apanteles glomeratus, which is para- 

 sitic on Pieris hrassicce, the eggs normally being deposited in the small cater- 

 pillar. 



Coccobacilli parasites of the caterpillar of Pieris brassicae, A. Paillot 

 {Compt. Rend. Acad. Sci. [Paris], 168 {1919), No. 9, pp. ^76-// 78). —The author 

 has found five species of coccobacilli to infect P. hrassiew caterpillars, four of 

 which occur in the Lyonnais region and one at Sellieres in Jura. The charac- 

 teristics of these species, namely, BaciUus pieris fltiorescens, B. pieris lique- 

 faciens, B. pieris nonliquefaciens a, B. pieris nonliquefaciens P, and B. pieris 

 agilis, are described. 



The Argentine fruit fly (Anastrepha fraterculus), P. Caride Massini and 

 J. BEfiTHES {An. Soc. Rural Argentina, 52 {1918), No. 5, pp. 213-216, fig. 1).— 

 A brief account of this fruit fly, a more detailed account of which by Rust has 

 been noted (E. S. R., 40, p. 7n(;). 



A contribution to the study of the black fig fly (Lonchaea aristella) and its 

 parasites in the Sorrento peninsula of Italy, L. Savastano (.Inn. R. Stas. 

 Sper. Agrum. e Fnitticol. Acireale, 4 {1916), pp. 113-1^6, pis. 2; abs. in Internat. 

 Inst. Agr. [Rome], Internat. Rev. Sci. and Pract. Agr., 9 {1918), No. 6, p. 113).— 



