. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. Fig. 43.—Melanoplusfemur-nibrum—nat ural size (after Riley). THE ROCKY MOUNTAIN LOCUST. {Melanoj)lus spretiis Thomas). This is the most destructive of all native grasshoppers, and has been the cause of greater losses to agriculture in the past thirt}^ 3"ears or more than perhaps all of the other known species of grasshoppers combined. Its range of injuriousness is not limited to the Rockj'- Mountain region, but it is more abundant there than elsewhere. It is illustrated in ligures 44 and 45. Those who were i
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. Fig. 43.—Melanoplusfemur-nibrum—nat ural size (after Riley). THE ROCKY MOUNTAIN LOCUST. {Melanoj)lus spretiis Thomas). This is the most destructive of all native grasshoppers, and has been the cause of greater losses to agriculture in the past thirt}^ 3"ears or more than perhaps all of the other known species of grasshoppers combined. Its range of injuriousness is not limited to the Rockj'- Mountain region, but it is more abundant there than elsewhere. It is illustrated in ligures 44 and 45. Those who were inter-. FiG. ^.—Melanoplus spreUm: a, a, a, female in different posi- tions, ovipositing; b, egg-pod extracted from ground, with the end broken open; c, a few eggs lying loose on the ground; d, c, show the earth partially removed, to illustrate an egg-mass already in place and one being placed; /, shows where such a mass has been covered up (after Riley).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Bureau of Entomology. Washington : G. P. O.
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