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 . e antennary socket,round which they form a kind ofrim. (Miall and Denny.) Theoesophagus passes upwards be-tween its anterior crura, the longflexor of the mandible lies oneach side of the central plate;the supracesophageal ganglionrests on the plate above, and thesuboesophageal ganglion lies be- low it, the nerve Cords which lal»inf posteriores ; u, tentorium; w, kniina- orbitales ; a1, os trans
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 . e antennary socket,round which they form a kind ofrim. (Miall and Denny.) Theoesophagus passes upwards be-tween its anterior crura, the longflexor of the mandible lies oneach side of the central plate;the supracesophageal ganglionrests on the plate above, and thesuboesophageal ganglion lies be- low it, the nerve Cords which lal»inf posteriores ; u, tentorium; w, kniina- orbitales ; a1, os trans versum ; y, articulating cav-ity for the mandible; s, os hypopharyngeum. — After Newport. unite the two passing throughthe circular aperture. (Miall andDenny.) In Coleoptera (Hy-drous) it protects the nervouscord which passes under it.(Newport, Fig. 32, M.) In Anabrus the tentorium is V-shaped, the two arms originatingon each side of the base of the clypeus next to the base of each mandi-ble (the origin being indicated by two small foramina partly concealedexternally and passing inwards and backwards and uniting just beforereaching the posterior edge of the large occipital foramen (Fig. 33).. Flo m_ Interior fllld npper 8nd under sur.
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishe, booksubjectinsects
