. 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. FiG. 228.—Venation of a tenthredinid (Janus). (After Comslock.) Fig. 229.—Venation of the honeybee. (After Comslock.) nae elbowed and with one or more ring-like segments next to last.—Chalcididce (Chalcis Flies), p. 353. DD. Ovipositor issuing from the apex of the abdomen; antenna straight, or if elbowed without ring-like segments.—Proct- otrypidce, p. 351. CC. Fore wings with one or more closed Fig. 230.—Venat
. 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. FiG. 228.—Venation of a tenthredinid (Janus). (After Comslock.) Fig. 229.—Venation of the honeybee. (After Comslock.) nae elbowed and with one or more ring-like segments next to last.—Chalcididce (Chalcis Flies), p. 353. DD. Ovipositor issuing from the apex of the abdomen; antenna straight, or if elbowed without ring-like segments.—Proct- otrypidce, p. 351. CC. Fore wings with one or more closed Fig. 230.—Venation of an ichneu- monid. (After Comstock.). 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
