. Class book of economic entomology [microform] : with special reference to the economic insects of the northern United States and Canada. Insect pests; Entomologie; Entomology; Insectes nuisibles, Lutte contre les; Insect pests; Insectes nuisibles. 340 ECONOMIC ENTOMOLOGY D. Abdomen slender; wings narrow; antenna! pulmose in the males; wing veins strong near costal margin.—C«i>o- tiomida (Midges), p. 25J. 1)D. Abdomen short and thick; wings broad; antenna short and non-plumose.—5i)>iM/iW<r (Black Flies), f. ^s^- Ckief Families of Ihe Brackyarous Orlkanhapha (Figs. 146-149); A. Antenn
. Class book of economic entomology [microform] : with special reference to the economic insects of the northern United States and Canada. Insect pests; Entomologie; Entomology; Insectes nuisibles, Lutte contre les; Insect pests; Insectes nuisibles. 340 ECONOMIC ENTOMOLOGY D. Abdomen slender; wings narrow; antenna! pulmose in the males; wing veins strong near costal margin.—C«i>o- tiomida (Midges), p. 25J. 1)D. Abdomen short and thick; wings broad; antenna short and non-plumose.—5i)>iM/iW<r (Black Flies), f. ^s^- Ckief Families of Ihe Brackyarous Orlkanhapha (Figs. 146-149); A. Antenna: of five or more segments, those beyond the second more or less united. (Fig. 144, £)•. Fig. 145.—Venation of a tipulid {Tipula). {After Comstock.) Pig. 146.—Venation of a tabanid iTabatius). (.After Comslock.) B. Alulets large, third joint of antenna without a style or bristle.— Tabatlidx (Horse Flies), p. 2%i. BB. Alulets small; branches of Radius crowded together near the costal margin.—5(ra/ii)myiK(ii (Soldier Flies). AA. Antenna of four or five segments but the third joint not ringed. B. Antenna long, clavate, 4-jointed; branches of Radius curving toward costal matgia.—iiidaida (Midas Flies).. 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, 1864-1927. Philadelphia : P. Blakiston's Son
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectentomology, bookyear1
