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 . matopota, according to Menzbier), or may be hairy(Musca). The upper side of the base of the hypopharynx iscontinuous with the lower wall of the pharynx; its under surfacemay entirely coalesce with the labium (Culex, male), may jointhe labium more or less, anterior to the month (Musca), or, if TEXT-BOOK OF ENTOMOLOGY oc cither mandibles or maxillaa are present, its base may join them (Culex, fem
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 . matopota, according to Menzbier), or may be hairy(Musca). The upper side of the base of the hypopharynx iscontinuous with the lower wall of the pharynx; its under surfacemay entirely coalesce with the labium (Culex, male), may jointhe labium more or less, anterior to the month (Musca), or, if TEXT-BOOK OF ENTOMOLOGY oc cither mandibles or maxillaa are present, its base may join them (Culex, female). (p. 43.) We will now briefly describe the lingua, first of the mandibnlate or biting insects, and then its specialized form, the hypopharynx of the haustellate and lapping insects. The lingua (hypopharynx) exists inperhaps its most generalized conditionin the Thysanura (Fig. 69), where itforms a soft projection, having the samerelations as in Anabrns and other In the cockroach (Fig. 70), as statedby Miall and Denny, the lingua is achitinous fold of the oral integumentsituated in front of the labiuni, and ly-ing in the cavity of the mouth. Thecommon duct of the salivary glands. Ibr rnx. Fir,, section of head of Ma- enters the lingua, and opens on its chili* iiKii-itiiint : In/p, hypopharynx; hinder snrflPP Thp lincmn iqqnrmnrtprlI1>,-, labnnn; t, tentorium ; ph, room Liace. .ngua IS SUppOUl in which the mandibles move on each l-,v a phitinnnc cVplpfrm fTTio-o 70 R • Q9 other ; /,, para-lossa ; m;r , labium • DJ c * 1SS- ( U> -° > <^5 .«/, salivary duct; , salivary pland. o/irA « Thp thin fhitinnnq Qiirfqpp nf thp oe, uesophagus. - After Oudeuians. ^ *• lingua is hairy, like other parts of the month, and stiffened by special chitinous rods or bands. (Mialland Denny.) In the Acrydiidse (Melanoplus femur-rubrum) the tongue is a large, c B
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishe, booksubjectinsects
