. A manual for the study of insects. Insects. Fig. 359.âAcontia catidefacta. trate this group. Chamyris cerintha (Cham'y-ris ce-rin'tha) (Fig. 358} is white, with the fore wings marked with shades of oHve, brown, and blue. The hind wings have a narrow border of dark scales, within which there may be a cloudy shade as shown Fig. 358. â Chamyris ce- \\\ the figure, or this shade may be Avant- rintha. -i <â 1 11 ing. The larva feeds on the leaves of apple. The second of our illustrations of this group is Acontia candefacta (A-con^ti-a can-de-fac'ta) (Fig. 359). This species is also largely whi
. A manual for the study of insects. Insects. Fig. 359.âAcontia catidefacta. trate this group. Chamyris cerintha (Cham'y-ris ce-rin'tha) (Fig. 358} is white, with the fore wings marked with shades of oHve, brown, and blue. The hind wings have a narrow border of dark scales, within which there may be a cloudy shade as shown Fig. 358. â Chamyris ce- \\\ the figure, or this shade may be Avant- rintha. -i <â 1 11 ing. The larva feeds on the leaves of apple. The second of our illustrations of this group is Acontia candefacta (A-con^ti-a can-de-fac'ta) (Fig. 359). This species is also largely white, with the fore wings marked with shades of olive, brown, and yellow. The amount of yellow varies greatly in different specimens. The larva feeds on the leaves of Ambrosia arteniisicefolia. The Boll-worm, Heliothis arniigera (He-li-o'this ar-mig'e- ra).âThis widely distributed pest is best known in its larval state ; but the larva varies so greatly in color and markings that it is dijfficult to prepare a description by which it can be recognized. The senior author has published colored figures of this insect, including five varieties of the larva, in his Report on Cotton-insects and also in the Report of the U. S. Department of Agriculture for 1879, Plate VIII. The larva when full grown measures about one and one half inches in length. It is often found feeding on the tips of ears of growing corn. It also frequently infests tomatoes, eat- ing both the ripe and the green fruit. Occasionally it is found within the pods of peas and of beans eating the immature seeds. But the most serious of its injuries is to cotton. The larva bores into the pods or bolls of the cotton, destroy- ing them. The injury thus done to the cotton crop is second in importance only to that done by the Cotton-worm, which destroys the foliage of the plant. Much can be done to check the injury of the Boll-worm to cotton by planting rows of corn in the cotton-field, and collecting the larvse of the early
Size: 2216px × 1128px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectinsects, bookyear1895
