Economic entomology for the farmer Economic entomology for the farmer and fruit-grower economicentomolo01smit Year: 1906 Fig. I02. a, Ceresa bubalus, ovipositing in slits b; the eggs, d, arranged as at c; old, scarred punc- tures shown at e. The dog-day harvest-fly, Cicada tibicen. snapping noise whenever the bottom is forced to change from convex inwardly to convex outwardly. By an exceedingly rapid snapping of the convex 'drum' of the cicada, the continuous shrilling sound is produced, intensified and modified by the vari- ous tense membranes more or less surrounding it. The most famous s
Economic entomology for the farmer Economic entomology for the farmer and fruit-grower economicentomolo01smit Year: 1906 Fig. I02. a, Ceresa bubalus, ovipositing in slits b; the eggs, d, arranged as at c; old, scarred punc- tures shown at e. The dog-day harvest-fly, Cicada tibicen. snapping noise whenever the bottom is forced to change from convex inwardly to convex outwardly. By an exceedingly rapid snapping of the convex 'drum' of the cicada, the continuous shrilling sound is produced, intensified and modified by the vari- ous tense membranes more or less surrounding it. The most famous species of this family is the '' periodical cicada,' or ' seventeen-year locust,' Cicada septendecim. It is of especial interest from the unusually long larval period, re- maining in the Middle and Northern States sixteen years beneath
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