. Civic biology; textbook of problems, local and national, that can be solved only by civic coöperation. Biology. Spiracles 'Trochanter Mandible Maxilla 'Femur â .Tibia 'â .Tarsus Labium. Oripositor Mouth-Farts Fiarts (very complicated, consisting typically of an upper and lower lip (labrum and labium) and two pairs of jaws (mandibles and maxilhe), which move sidewisc instead of up and down). Watch a caterpillar or grasshopper eat a leaf and see if you can discover why the jaws move side wise. A study ol mouth parts is again important with ref(M-ence to methods of destroy- ijicr insects. Tlio
. Civic biology; textbook of problems, local and national, that can be solved only by civic coöperation. Biology. Spiracles 'Trochanter Mandible Maxilla 'Femur â .Tibia 'â .Tarsus Labium. Oripositor Mouth-Farts Fiarts (very complicated, consisting typically of an upper and lower lip (labrum and labium) and two pairs of jaws (mandibles and maxilhe), which move sidewisc instead of up and down). Watch a caterpillar or grasshopper eat a leaf and see if you can discover why the jaws move side wise. A study ol mouth parts is again important with ref(M-ence to methods of destroy- ijicr insects. Tliose that bite and chew can be killtMl by spraying. 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 Hodge, Clifton Fremont, 1859-; Dawson, Jean, 1873-. Boston, Ginn
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