A text-book of entomology, including the anatomy, physiology, embryology and metamorphoses of insects, for use in agricultural and technical schools and colleges as well as by the working entomologist . & Fie. 229.— ^4, portion of wing of a caddis-fly (Mystacides). B, enlarged, showing the androconiaand hair-scales. C, a separate amlroconium. — After Kellogg. (Spuler), variously called plumules (Deschamps), battledorescales, also certain minute cylindrical hairs. To these scent-scales ANDROCONIA 109 is applied the term androconia. They are found, almost withoutexception, on the upper side of t
A text-book of entomology, including the anatomy, physiology, embryology and metamorphoses of insects, for use in agricultural and technical schools and colleges as well as by the working entomologist . & Fie. 229.— ^4, portion of wing of a caddis-fly (Mystacides). B, enlarged, showing the androconiaand hair-scales. C, a separate amlroconium. — After Kellogg. (Spuler), variously called plumules (Deschamps), battledorescales, also certain minute cylindrical hairs. To these scent-scales ANDROCONIA 109 is applied the term androconia. They are found, almost withoutexception, on the upper side of the fore wings, occurring in limitedareas, such as the discal spots, or on folds of the wings. FritzMiiller has shown that they function as scent-scales, and are con-fined to the males. Kellogg has detected androconia-like scales onthe wings of a caddis-fly, Mystacidespunctata (Fig. 229). Thomas has proved by sections of the wing of Danais, etc., thatthe androconia arise from glands situated in a fold of the wing(Fig. 230), and he statesthat the material elabo-rated by the local glands,and distributed upon thesurface of the wing by a,the androconia, is thatwhich gives to many ofthe Lepido
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishe, booksubjectinsects
