. Injurious insects and the use of insecticides [microform] : a new descriptive manual on noxious insects, with methods for their repression . Fig. 19.—Gad-fly ok Horse-fly. Fig. 20.—The Adult Ox {Garman.) INSECTS WITH INCOMPLETE METAMORPHOSES. 1. HEMIPTERA, OR HALF-WINGED INSECTS. It includes, first, the true bugs—a name which should not be appliedto tbe insects of any other order ; second. Harvest-flies, Leaf-hoppers,Plant-lice ; and, third. Lice that are parasitic on mammals. The first includes many injurious insects, such as the Chinch bug,Squash-bug, Tarnished Plant-bug,


. Injurious insects and the use of insecticides [microform] : a new descriptive manual on noxious insects, with methods for their repression . Fig. 19.—Gad-fly ok Horse-fly. Fig. 20.—The Adult Ox {Garman.) INSECTS WITH INCOMPLETE METAMORPHOSES. 1. HEMIPTERA, OR HALF-WINGED INSECTS. It includes, first, the true bugs—a name which should not be appliedto tbe insects of any other order ; second. Harvest-flies, Leaf-hoppers,Plant-lice ; and, third. Lice that are parasitic on mammals. The first includes many injurious insects, such as the Chinch bug,Squash-bug, Tarnished Plant-bug, Four-lined Leaf-bug. Among thecannibals are the Bed-bug and Soldier-bug, and some species useful toman. Some are amphibious, or aquatic ; among these are the Water-scorpion, the Giant Water-bug or the Electric Light-bug. 30 INJURIOUS INSECTS. The second group includes many families, all of which are plantfeeders. Some insects of ttiis group have sound producing organs, dis-. ^mMe Fig. 21.— Cicada orni, common in Manna. 2. Singing cicada, with pupa.


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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbenefic, bookyear1894