60 



1888. ; 



20. CocKERELL, T. D. A.— The Entomologist, Nov. 1888, p. 279. 



States that the larvse exhibited before the South London Ento- 

 mological Society in June, 1887 (see No. 11), although found in 

 flour which came from America, are supposed to have come from 

 some infested Trieste flour which was in the same warehouse. 



21. PODLTON, E. B. -Trans. Enh Soc. Lond., Dec, 1888, pp. 



598, 599. 



Under the caption "The Determination of Sex in certain Lepi- 

 dopterous Larva?," gives an interesting item concerning the larva 

 of Ephestia kuehiiiella. Demonstrated by observation and experi- 

 ment that larvse with dark spots on the dorsal surface of the 

 fifth abdominal segment always developed as males, and that the 

 spots are embryonic testicles. 



22. Brocchi, p.— Bull, du Minist6re de 1' Agriculture, 1888. 



A brief summary of the past history of the pest, with mention 

 of remedies. 



1889. 



23. Ormerod, E. A.— Insect Life, Mar., 1889, v. 1, p. 314. 

 A letter to Dr. C. V. Riley regarding this pest in England. 



24. Twelfth Rep. Inj. Ins. 1888, pp. 66-72. 



An interesting account of the outbreak of the flour moth ia 

 England. 



25. Riley, C. V., & Howard, L. O.— Insect Life, May, 1889^ 



V. 1, p. 355. 

 Mention of Ephestia kuehniella in connection with a review of 

 Miss Ormerod's Twelfth Report. 



26. Bryce, p. H.— Bull. L, Provincial Bd. Health, Ont. (Issued 



by Ont. Dept. Agr., Oct., 1889.) 

 An important article concerning the Canadian outbreak. 



27. Riley, C. V., & Howard, L. O.— Insect Life, Dec, 1889, v. 2^ 



pp. 166-171. 



Summary of history and literature, with original notes and ob- 

 servations. 



28. Fletcher, James.— Insect Life, Deo., 1889, v. 2, pp. 187-189. 

 A letter to Dr. Riley regarding the Canadian outbreak. 



1890. 



29. Fletcher, James.— Rep. Minister Agr. [Ottawa], 1889, App./ 



pp. 73-79. 



A review of Dr. Bryce's Bulletin (see No. 26), with much ad- 

 ditional information regarding the Canadian outbreak. 



