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See Westwood, Tr. Zool. Soc. London, x. pp. 507, etc., for discussion of this question and for figures; also E. Reuter, Act. Soc. Sci. Fenn. xxii. 1896, p. 202.

[317]

Congr. Internat. Zool. ii. 1892, pt. 2, p. 180.

[318]

Ragonot, Ann. Soc. ent. France, 1890 and 1891; and Meyrick, Tr. ent. Soc. London, 1890, p. 429.

[319]

Ent. Mag. xii. 1876, p. 210, and xvii. 1881, p. 249.

[320]

Zool. Jahrb. Syst. vi. 1892, p. 617.