The house-fly, Musca domestica Linn: its structure, habits, development, relation to disease and control . and drnt. Fig. 64. Internal aspect of the posterior thoracic imaginal discs of the right Dorsal mesothoracic or alar imaginal disc. Dorsal metathoracic disc. Lateral tracheal trunk of the right side of larva,metathoracic imaginal disc. Ventral Fig, 65. Longitudinal sections through the major cephalic imaginal discs ofmature larva to show the position of the individual imaginal rudiments. Thedextral section is more dorsal than the sinistral. (Camer
The house-fly, Musca domestica Linn: its structure, habits, development, relation to disease and control . and drnt. Fig. 64. Internal aspect of the posterior thoracic imaginal discs of the right Dorsal mesothoracic or alar imaginal disc. Dorsal metathoracic disc. Lateral tracheal trunk of the right side of larva,metathoracic imaginal disc. Ventral Fig, 65. Longitudinal sections through the major cephalic imaginal discs ofmature larva to show the position of the individual imaginal rudiments. Thedextral section is more dorsal than the sinistral. (Camera lucida drawings.) Imaginal disc of the antenna. Facial imaginal disc. Sheath of imaginal rudiments. Optic imaginal disc; Imaginal disc of the optic ganglionic structures. Optic stalks. Fundament of theimaginal supra-oesophageal ganglionic. .•^h. Sheath of cerebral lobe. instances they are coimected with the hypodermis by means of astalk of varying thickness. The imaginal disc or rudiment mayconsist of a simple or of a folded lamina of deeply-staining columnarembryonic cells,
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishercambridgeuniversit
