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 . FIG. 7fi. — Hypopharynx of Erio-cepltala c<i/tf« ll,i ; li<j. ligula, its mem-branous hinder edpe; lig, anteriorhorny edge of the lifrula-tube openingoutwards ; tip, contour of the hypo-pharynx ; mi, mala interior (lacinia);me, mala exterior (galeal, of secondmaxilla; mxp, labial palpus.— AfterWalter. 70 TEXT-BOOK OF ENTOMOLOGY. FIG. 77. — Labiiim of Mioropteryas ander-schella seen from w
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 . FIG. 7fi. — Hypopharynx of Erio-cepltala c<i/tf« ll,i ; li<j. ligula, its mem-branous hinder edpe; lig, anteriorhorny edge of the lifrula-tube openingoutwards ; tip, contour of the hypo-pharynx ; mi, mala interior (lacinia);me, mala exterior (galeal, of secondmaxilla; mxp, labial palpus.— AfterWalter. 70 TEXT-BOOK OF ENTOMOLOGY. FIG. 77. — Labiiim of Mioropteryas ander-schella seen from within (the labial palpi ()removed to their basal joint). Lettering as inFig. 76. — After Walter. remarking that this organ in the achilt Eriocephalidae (Tig. 76) exhibits a great similarity to the relations observable in the lower insects, adding: — The furrow is here within coalesced with the inner side of the labium, and though I see in the entire structure of the head the inner edge of the ligula tubeextended under the epipharynxas far as the mandible, I mustalso accept the fact that herealso the hypopharyiix extends tothe mouth-opening as in all otherSlicking insects with a well-developed underlip, viz. the Dip-tera and Hymenoptera. He has also discovered inMicropteryx a paired structurewhich he regards as the (Fig. 77). As he states:A portion of the inner sur-face of the tube-like ligula is covered by a furrow-like band which, close to the inner side, is coalesced with it, and in position, shape,
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishe, booksubjectinsects
