Economic entomology for the farmer and fruit-grower : and for use as a text-book in agricultural schools and colleges . eand black color, with red markings, making them easily visibleand readily destroyable. The largest species occurring in the Eastern United States isthe so-called wheel-bug, Prionidus cnstatus, and this becomesmore common southwardly. It lays its curious, jug-like eggs inhexagonal masses on bark of trees, fences, or any other conven-ient locality, and the adult, which is brown in color, is one of themost readily recognized of our species. The thorax has a semi-circular crest,
Economic entomology for the farmer and fruit-grower : and for use as a text-book in agricultural schools and colleges . eand black color, with red markings, making them easily visibleand readily destroyable. The largest species occurring in the Eastern United States isthe so-called wheel-bug, Prionidus cnstatus, and this becomesmore common southwardly. It lays its curious, jug-like eggs inhexagonal masses on bark of trees, fences, or any other conven-ient locality, and the adult, which is brown in color, is one of themost readily recognized of our species. The thorax has a semi-circular crest, the edge of which is toothed, so that, viewed fromthe side, it has somewhat the appearance of a segment-of a cir-cular saw. It attacks all sorts of insects, piercing them with its THE INSECT WORLD. ^S% powerful beak and sucking their juices. There are other speciesof the same general appearance common everywhere, and someeven maintain themselves in our cities, feeding upon the larvaeinjuring shade-trees. I have noticed certain ol them in NewBrunswick destroying the larvae of the elm-leaf beetle in large Fig. The wheel-bug, Prionidus ct-istaius, in all its stages; natural size. numbers. Taking it altogether, we find in this family mainlyforms that are beneficial to the farmer. There are a few other common species, also predaceous incharacter, but much smaller and more slender than the pre-ceding, belonging to the family Nabidce. Our common speciesof the genera Nabis and Coriscus are yellowish in color, flat-tened above and rather roughened, with long legs, but other-wise resembling in head and beak the usual predaceous form,except that the beak is longer antl more slender. Tliey arefound on flowers and leaves, preying upon almost anything thatthey can conquer. 154 AN ECONOMIC ENTOMOLOGY. A very curious, chunky little species, with the sides of theabdomen much elevated, and the forelegs much broadened andfitted for clasping, belongs to the genus Phymata and the familyPhyma
Size: 1620px × 1542px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectinsectp, bookyear1906
