178 Annals Entomological Society of America ■ [Vol.1, 



On September 2nd, 1907, it was noted that adults were still 

 mating in numbers, and larvae were also abundant; this obser- 

 vation made in a single field. On the 6th of the same month in 

 the same field adults and large larvae were numerous, but eggs 

 were relatively scarce; several egg-masses were found, however. 

 On September 25th, a long search in this field failed to find either 

 eggs or larvae, and but very few adults and these were extremely 

 restless. I find unfortunately that these fragments are all that 

 were recorded, and they leave much to be desired. 



LITERATURE REFERRED TO. 



1889. Wheeler, William Morton. The embryology of Blatta 

 germanica and Doryphora decemlineata. Journal of 

 Morphology, Boston, III, pp. 319-320. 



1906. Tower, William Lawrence. An investigation of evolution 



in chrysomelid beetles of the genus Leptinotarsa. 

 Publication No. 48, Carnegie Institution of Washington, 

 Washington, D. C. 



1907. Girault, Alecandre Arsene. Errors in Tower's "An inves- 



tigation of evolution in chrysomelid beetles of the 

 genus Leptinotarsa. Science, Lancaster, Pa., N. series, 



XXVI, pp. 550-551- 



Girault, Alecandre Arsene and Arthur H. Rosenfeld. Bio- 

 logical notes on the Colorado potato beetle, Leptinotarsa 

 decemlineata (Say), with technical description of its 

 stages. Psyche, Cambridge, Mass., XIV, pp. 45-57. 



1908. Girault, Alecandre Arsene. Outline life-history of the 



chrysomelid Gastroidea cyanea Melsheimer. Psyche, 

 Cambridge, Mass., XV, pp. 6-9. 

 Knab, Frederick. Tower's evolution in Leptinotarsa. 

 Science, Lancaster, Pa., N. series XXVII, pp. 225-226. 



