This organ is termed the tongue by Mr. Meyrick. As many mandibulate insects possess a true tongue, and the proboscis of the Lepidoptera is not homologous with the tongue, but with the maxillæ, I think the term is very misleading.

[2]

For the examination of the wings taken from dried specimens, I have found that immersion in methylated spirits renders the veins visible after partial denudation with the camel's-hair brush. With recent specimens, however, the scales can easily be entirely removed.

[3]

I have found considerable difficulty and uncertainty in examining the neuration of undenuded specimens.

[4]

Entom. xxvi. 220.

[5]

Trans. N. Z. Inst. xxii. 218.

[6]