Entomology for beginners; for the use of young folks, fruitgrowers, farmers, and gardeners; . ology. Orthoptera. (4to. 13 pK Washington, 1872.)Eiley. Packard, and Thomas. First. Second, and Third Reports IT. S Entomological Commission. 1^, H. de Studies of the Orthoptera of Mexico and Central America Paris. lsTu-74 . (In French.)Scudder, S. H. Materials for a Monograph of the X. A. Orthoptera (Jour. Bost. Soc , vii., 1862 .—_ Catalogue of North American Orthoptera (Smithsonian Misc. viii. Washington, is> - Revision of the Mole Crickets {Mem. Peabody Acad., Xo. 1. Salem,
Entomology for beginners; for the use of young folks, fruitgrowers, farmers, and gardeners; . ology. Orthoptera. (4to. 13 pK Washington, 1872.)Eiley. Packard, and Thomas. First. Second, and Third Reports IT. S Entomological Commission. 1^, H. de Studies of the Orthoptera of Mexico and Central America Paris. lsTu-74 . (In French.)Scudder, S. H. Materials for a Monograph of the X. A. Orthoptera (Jour. Bost. Soc , vii., 1862 .—_ Catalogue of North American Orthoptera (Smithsonian Misc. viii. Washington, is> - Revision of the Mole Crickets {Mem. Peabody Acad., Xo. 1. Salem, 1869).Serville. A. Natural History of the Orthoptera (suites a Buffon). (1 vol., 8vo. Paris, \In French.)Stoll, C Representations of the Phasmidae, Mantidse, Acrididae, Gryllidae (etc. , of the four parts of the world <2 vols., 4to, 70 pis. Amsterdam, 1815. (In French.)Thomas, C. Synopsis of Acrididae of North America (Final Report U. S. Geol. Surv., vc\ v. 4to. Washington, 187o .Walker, F. Complete catalogue of Denuaptera Saltatoria (4 vols. and suppl. 8vo. London, 1869-71 .. FIG. 44.—Incomplete metamorphosis of the common red-legged locust, Calop-tenus femur-rubrum. 1, la, 2, 26, 2c, the two larval stages; 3-5, the threepupal stages; 6, 6a, the adult.—Emerton del. (To face page 61.) HABITS OF LOCUSTS. 61 stage, and as the locust moults twice afterwards before thefinal imago stage is reached, it may be said to have threepupal stages. When we compare the freshly-hatched larvawith the adult, we see that the only important difference isthe presence of wings. There is no great change, such as marks the life-historyof a butterfly. Perhaps it is by reason of their incompletemetamorphosis, the general uniformity of their habits, andtheir living on vegetable food, that Orthoptera are notnumerous in species compared with the beetles and higherorders. The locusts lay their eggs in packets in the ground(Fig. 45). With its ovipositor, which is made up of
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