[399] ‘Lepidopteren-Doubblettren Liste,’ Berlin, No. x. 1866.
[400] This naturalist has been so kind as to send me some results from former years, in which the females seemed to preponderate; but so many of the figures were estimates, that I found it impossible to tabulate them.
[401] Günther’s ‘Record of Zoological Literature,’ 1867, p. 260. On the excess of female Lucanus, ibid. p. 250. On the males of Lucanus in England, Westwood, ‘Modern Class. of Insects,’ vol. i. p. 187. On the Siagonium, ibid. p. 172.
[402] Walsh, in ‘The American Entomologist,’ vol. i. 1869, p. 103. F. Smith, 'Record of Zoological Literature,’ 1867, p. 328.
[403] ‘Farm Insects,’ p. 45-46.
[404] ‘Observations on N. American Neuroptera,’ by H. Hagen and B. D. Walsh, ‘Proc. Ent. Soc. Philadelphia,’ Oct. 1863, p. 168, 223, 239.
[405] ‘Proc. Ent. Soc. London,’ Feb. 17, 1868.
[406] Another great authority in this class, Prof. Thorell of Upsala (‘On European Spiders,’ 1869-70, part i. p. 205) speaks as if female spiders were generally commoner than the males.
[407] See, on this subject, Mr. Pickard-Cambridge, as quoted in ‘Quarterly Journal of Science,’ 1868, p. 429.
[408] I have often been struck with the fact, that in several species of Primula the seeds in the capsules which contained only a few were very much larger than the numerous seeds in the more productive capsules.