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WoNFOR, T. W. 1868. On certain butterfly scales characteristic of sex. Quart. 



Jour. Micr. Sci., N. S., v. 8, pp. 80-83. 

 1869. On certain butterfly scales characteristic of sex. Ibid., v. 9, 



pp. 19-22, 426-428. 

 ZouBAREFF, A. 1883. A propos d'un organe de I'abeille non encore decrit. 



Bui. d' Apiculture Suisse Romande, v. 5, pp. 215-216. 



