. Class book of economic entomology, with special reference to the economic insects of the northern United States and Canada. Beneficial insects; Insect pests; Insects; Insects. STRUCTURE, GROWTH AND ECONOMICS OF INSECTS 9 jointed beak, the modified labium. The labrum closes the base of the groove (Fig. 14). I li h. Fig. II.—Mouth-parts of female mosquito (Culex pipiens). A, Dorsal aspect; B, transverse section; C, extremity of maxilla; D, extremity of labrum-epi- pharynx; a., antenna; e., compound eye; h., hypopharynx; I., labrum-epipharynx; li., labium; m., mandible; mx., maxilla; p-, maxill
. Class book of economic entomology, with special reference to the economic insects of the northern United States and Canada. Beneficial insects; Insect pests; Insects; Insects. STRUCTURE, GROWTH AND ECONOMICS OF INSECTS 9 jointed beak, the modified labium. The labrum closes the base of the groove (Fig. 14). I li h. Fig. II.—Mouth-parts of female mosquito (Culex pipiens). A, Dorsal aspect; B, transverse section; C, extremity of maxilla; D, extremity of labrum-epi- pharynx; a., antenna; e., compound eye; h., hypopharynx; I., labrum-epipharynx; li., labium; m., mandible; mx., maxilla; p-, maxillary palpus. {After Folsom and Dimmock.). 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 Lochhead, William, 1864-. Philadelphia, Blakiston
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsects, bookyear1919
