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A Revision of certain Genera of European and Asiatic Lithosiidæ, with characters of new Genera and Species.
Author(s) -
Moore P.
Publication year - 1878
Publication title -
proceedings of the zoological society of london
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.915
H-Index - 96
eISSN - 1469-7998
pISSN - 0370-2774
DOI - 10.1111/j.1469-7998.1878.tb07927.x
Subject(s) - citation , library science , genealogy , zoology , computer science , history , biology
All the genera in this subfamily possess a peculiar stridulatory apparatus in both sexes. This is distinctly visible on the upperside of the posterior margin of the fore wing, and as viewed from the underside of the wing appears as a short oval nacreous cavity, situated between the submedian vein and the extreme margin, along the upper edge of which projects a raised longitudinally oblique fold, which is smooth in some, and transversely scabrous in others ; and on the upperside of the hind wing is a patch of scabrous scales, or a short transverse outwardly-curved raised scabrous bar, which, by the motion of this wing, evidently plays upon the raised fold over the edge of the cavity, and produces* a stridulating sound.