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Published online by Cambridge University Press: 31 May 2012
1873—Stretch, Zygænidæ and Bombycidæ, 118.
Head small, hardly retracted; eyds inconspicuous, bulging; ocelli distinct; vestiture thin, loose and divergent; tongue weak and short, spira; palpi weak, short, drooping, with thin divergent vestiture; legs sub-equal, posterior slightly the longest; middle and posterior tibiæ each with minute terminal spurs only.