. 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. 3dA l^^ Fig. 119.—Venation of a tortricid (Cacoecia). {After Comslock.) Fig. 120.—Venation of Thyridopleryx. {After Comstock.). Fig. 121.—Venation of a cossid {Prionoxystus). {After Comstock.) FF. Subcosta of hind wings united with radius for a considerable distance; cubitus of hind wings apparently 4-branched.—ArctiidcB (Tiger Moths), p. 18 Please note that these images are extracted from scanned page images that


. 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. 3dA l^^ Fig. 119.—Venation of a tortricid (Cacoecia). {After Comslock.) Fig. 120.—Venation of Thyridopleryx. {After Comstock.). Fig. 121.—Venation of a cossid {Prionoxystus). {After Comstock.) FF. Subcosta of hind wings united with radius for a considerable distance; cubitus of hind wings apparently 4-branched.—ArctiidcB (Tiger Moths), p. 18 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