Entomology : with special reference to its biological and economic aspects . Hypopharynx ofgcnia. I, lingua;After Vayssiere. si, ephemerid, Hepta-sl, superlinguae.— ANATOMY AND PHYSIOLOGY 41 sent special modifications. A pharyngeal pumping apparatusis present, which is similar in its general plan to that of Lepi-doptera and Diptera, as presently described, though it differsas regards the smaller details of construction. Fig. 50. /. Mouth parts of a hemipteron, Bcnacus griscus. A, dorsal aspect; B, transverse sec-tion; C, extremity of mandible; D, transverse section of mandibles and maxillae; c
Entomology : with special reference to its biological and economic aspects . Hypopharynx ofgcnia. I, lingua;After Vayssiere. si, ephemerid, Hepta-sl, superlinguae.— ANATOMY AND PHYSIOLOGY 41 sent special modifications. A pharyngeal pumping apparatusis present, which is similar in its general plan to that of Lepi-doptera and Diptera, as presently described, though it differsas regards the smaller details of construction. Fig. 50. /. Mouth parts of a hemipteron, Bcnacus griscus. A, dorsal aspect; B, transverse sec-tion; C, extremity of mandible; D, transverse section of mandibles and maxillae; c,canal; I, labrum; li, labium; m, mandible; mx, maxillse. Lepidoptera.—In Lepidoptera. excepting Erioccpliakt, thelabrum is reduced (Fig. 51) and the mandibles are either rudi-mentary or absent (Rhopalocera ). The two maxilhe are rep-resented by their galeae, which form a conspicuous proboscis;the grooved inner faces of the galeae (or lacinicT, according toKellogg) form the sucking tube, which opens into the oesoph-agus. The labium is reduced, though the labial palpi () are well developed. The so-called rudimentary mandi-bles of Anosia and other forms have been shown by Kelloggto be lateral projections of the labrum (Fig. 51) and he termsthem pilifers. 42 ENTOMOLOGY Fig. 51.
Size: 1592px × 1570px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectentomology, bookyear1
