. Bulletin of the Department of Agriculture. Agriculture; Agriculture. 10 DEPARTMENT BULLETIN 779. of head slightly reflesed or cariniform. First anteunal segment less than one- half as long as second; second, third, fourth, and fifth segments of nearly the same length, the second slightly the longest and most slender. BucculiB long and prominent. Rostrum extending to hind coxa^. Pronotum coarsely punctured and appearing somewhat rugose. Lateral mar- gins reflexed or cariniform. Callosities prominent. Scutellum coarsely punctured and appearing somewhat rugose, like the pronotum. Three lar
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. 10 DEPARTMENT BULLETIN 779. of head slightly reflesed or cariniform. First anteunal segment less than one- half as long as second; second, third, fourth, and fifth segments of nearly the same length, the second slightly the longest and most slender. BucculiB long and prominent. Rostrum extending to hind coxa^. Pronotum coarsely punctured and appearing somewhat rugose. Lateral mar- gins reflexed or cariniform. Callosities prominent. Scutellum coarsely punctured and appearing somewhat rugose, like the pronotum. Three large prominent callosities on anterior border, one at each anterio-lateral angle, and one at the middle. Apex bluntly rounding. Elytra more finely punctured than scutellum with many small callous spots. Membrane clear. General form elongate. Average size of female mm.; males somewhat smaller. The general size varies considerably. Color normally a decided deep green, but varying from a pale yellowish green to red- dish brown. Numerous small white calloused spots on prono- tum, scutellum, and elytra. Lateral border of pronotum, basal portion of costal border of elytra, the three large cal- louses on anterior border of scutellum, and apex of scutel- lum yellow or red. As noted, the color varies greatly but the numerous light colored callous spots are characteristic. AntennjB blacli except for basal segment and basal half of second segment, which are green. Pale yellowish green beneath. Abdomen above black except borders, which are yel- FiG. 10.—The grain bug: Adult. Much enlarged. low and LIFE HISTORY AND DEVELOPMENT. The observations on the life history and development of Chloro- chroa saij% as detailed herein, were made at an altitude of about 6,000 feet in northeastern New Mexico. These details probably would vary considerably under the different conditions of humidity, latitude, and altitude within the distribution of the insect. EGG. PERIOD OF INCUBATION. The
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