. Bulletin of the Department of Agriculture. Agriculture; Agriculture. NEW MEXICO EAXGE CATERPILLAR AND ITS CONTROL. Inside this cocoon the pupa is formed. The pupa is dark brown in color, more or less cone-shaped, and from 1 to 1^ inches long. It is this process of ''spinning up" that causes the matted and distorted appearance of the range plants from late AugTist to the end of the year. The pupal period lasts for a month or six weeks and then the moth comes forth. Moth, or parent insect.—^The moth (see figs. 6 and 9), or parent, when freshly emerged bears only short, stubby wuigs,
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. NEW MEXICO EAXGE CATERPILLAR AND ITS CONTROL. Inside this cocoon the pupa is formed. The pupa is dark brown in color, more or less cone-shaped, and from 1 to 1^ inches long. It is this process of ''spinning up" that causes the matted and distorted appearance of the range plants from late AugTist to the end of the year. The pupal period lasts for a month or six weeks and then the moth comes forth. Moth, or parent insect.—^The moth (see figs. 6 and 9), or parent, when freshly emerged bears only short, stubby wuigs, and may be seen durmg the early part of the day cliiigmg to a grass or weed stem sit- uated near its former cocoon. After a few hours the wings be- come fully developed and the moth takes fhght. Mating occurs very soon after emerg- ence from the pupa, and within 24 hours the female deposits her eggs for next year's brood of range caterpillars, after which she usually dies very quickly. In the moth stage this in- sect does not consume any solid food. Most of the moths emerge and deposit their eggs during the period be- tween September 10 and November 15. They are most active just before sunset and arc often so numerous as to give the impres- sion of a snowstorm. The male and female moths differ in color and size. 'V\w. male moth measures about 2 inches from tip to tip of the wings; his wings arc white or light gray, and his body is covered with long, brick-red hairs. Tlic fcunalo moth Is larger than the male, being generally 2^ to 3 inches from tip to tip of the wings; hcsr wings are rechlish gray or dark brown and her robust body is dark reddish brown witli white stripes on the lower Fig. 8.—Tho New Mexico ratiKO cateri)illar: A characteristic mass of cocoons in a single jilant of Oiiticrrczia. Ilodticcd. (C. N. Ainslic.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appear
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