BULLETIN 378 3 1 MELANOPLUS ATLANIS 4 1, Eggs hatching; 2, first-stage nymph; 3, second-stage nymph; 4, third-stage nymph 2 PLATE III The adult grasshopper is a comparatively small insect, about an inch in length (Fig. 5), and is of a general yellowish or tan color. The femur of each hind leg has two distinct dark bars across the outer surface (Fig. 6). Late in the season the insects become somewhat darker in color, with a very slight olive tinge. The fore wings, which ex tend beyond the end of the body, are grayish in color, with a few FIG. 5. THE LESSER MIGRATORY LOCUST (M. ATLANIS), FEMALE】 distinct dark AND MALE. NATURAL SIZE spots along the middle. This species may be readily distinguished from other common forms by the absence of any prominent markings other M FIG. 6. VARIATIONS IN MARKINGS OF HIND FEMORA OF LESSER MIGRATORY LOCUST; OUTER FACE ABOVE, INNER FACE BELOW than those mentioned, and by its small size. The following is a technical description of the adult stage (Plate v, I and 3), as given by Blatchley (1903): Size, medium. some Vertex what elevated above the pronotum, the interspace between the eyes nearly (male) or fully (female) twice as broad as the basal joint of antennæ; the front half strongly sloping, distinctly sulcate in the male, shallowly in the female. Frontal costa short, not reaching clypeus; feebly or not at all |