. The practical study of malaria and other blood parasites. Malaria; Mosquitoes; Trypanosoma; Blood. i66 in the lower lip or labium. The proboscis con- sists of (Fig. 43) :— 1. The labium, forming the sheath. 2. The labrum and epipharynx, "j or upper lip | forming 3. The hypopharynx, or tongue j> the 4. Two mandibles j stylets. 5., Two maxillae j 6. Two maxillary W7" Fig. 43. The Proboscis (Labium and Stylets), after Ndttall and Shipley. Right hand, cross section of Proboscis The Palpi are not shown The —The labium forms the thick and scaly proboscis as usually see
. The practical study of malaria and other blood parasites. Malaria; Mosquitoes; Trypanosoma; Blood. i66 in the lower lip or labium. The proboscis con- sists of (Fig. 43) :— 1. The labium, forming the sheath. 2. The labrum and epipharynx, "j or upper lip | forming 3. The hypopharynx, or tongue j> the 4. Two mandibles j stylets. 5., Two maxillae j 6. Two maxillary W7" Fig. 43. The Proboscis (Labium and Stylets), after Ndttall and Shipley. Right hand, cross section of Proboscis The Palpi are not shown The —The labium forms the thick and scaly proboscis as usually seen. On its dorsal surface it is hollowed out, and in this hollow run, as in a sheath, the piercing mouth parts or stylets (Fig. 43). The labium itself does not penetrate the skin, but becomes sharply bent during the act of biting, just as when a cane walking stick is pushed against the ground. This may easily be seen if a mosquito is watched during the process of Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Stephens, John William Watson, 1865-; Christophers, S. R. (Samuel Rickard), 1873-; Liverpool School of Tropical Medicine. London, Pub. for the Univ. Press of Liverpool by Williams & Norgate
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectb, booksubjectmalaria
