Economic entomology for the farmer Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; economicentomol00smit Year: 1906 A water-boatman, Notonecta species. Fig. III. The sub-order Hetcroptera conrains those species of bugs in which the upper wings are thickened toward the base and the terminal portion is membraneous and veined. We have a large number of species belonging here, and some large series may be en- tirely left out of consideration. Such, for instance, are the aquatic families, all of which seem to be carnivorous
Economic entomology for the farmer Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; economicentomol00smit Year: 1906 A water-boatman, Notonecta species. Fig. III. The sub-order Hetcroptera conrains those species of bugs in which the upper wings are thickened toward the base and the terminal portion is membraneous and veined. We have a large number of species belonging here, and some large series may be en- tirely left out of consideration. Such, for instance, are the aquatic families, all of which seem to be carnivorous in habit, whether they live on the surface of the water or beneath it. One of the water-boatmen, a species of Corisa, may be mentioned, because its eggs are used as food in Mexico. These eggs are nearly white in color, about one-tenth of an inch in diameter, and laid in great numbers on sedges, where they are collected by the natives. Judging from the usual odor of the bugs and from the taste of such eggs as are sometimes involun- tarily eaten on fruits, it requires a specially-developed gustatory appa- ratus to enjoy a meal of this char- acter. This suggests the fact that one of the peculiarities of this sub- order is the more or less marked presence of odors, differing some- what in kind, but all of them intensely disagreeable. In bed-bugs we have one type in marked perfection, while in the 'squash-bug' we find an ex- cellent illustration of another. One of the water-bugs that some- times attracts attention is a huge creature, two or three inches in length, broad in proportion, livid gray in color, flattened above, with a short beak and very large, thick- ened forelegs, often drawn in considerable numbers to electric lights. It is the Bdosto7na americana, which lives in ponds and Belostonia americana.
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