The insects in Madeira which are not ground-feeders, and which, as certain flower-feeding coleoptera and lepidoptera, must habitually use their wings to gain their subsistence, have, as Mr. Wollaston suspects, their wings not at all reduced, but even enlarged.

马德拉的昆地面食性动物， 而且像某些以花为食的鞘目和鳞目昆，它们必须习惯性地使用它们的膀来维持， 如沃拉斯顿先所怀疑的那样， 它们的膀根本没有减少， 但甚至扩大。