. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. 33. Fig. 29.—Prodmia ornitlnxjaUi: dark form, male, above; pale form, female, below— somewhat enlarged (original. Division of Entomology). food, as with so many other forms of cutworms, consists of wild grasses of little or no value, and when grasses or weeds are replaced by crops these are apt to be attacked, under favoring conditions. THE COTTON CUTWORM. {Prodenkc ornitJiogulli Guen.) This species, although called a cut- worm, has little in common with pre- ceding species, being more distinctl}'^ marked, more o
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. 33. Fig. 29.—Prodmia ornitlnxjaUi: dark form, male, above; pale form, female, below— somewhat enlarged (original. Division of Entomology). food, as with so many other forms of cutworms, consists of wild grasses of little or no value, and when grasses or weeds are replaced by crops these are apt to be attacked, under favoring conditions. THE COTTON CUTWORM. {Prodenkc ornitJiogulli Guen.) This species, although called a cut- worm, has little in common with pre- ceding species, being more distinctl}'^ marked, more or less diurnal in habit, and in having the cutting trait some- what feebly developed. In fact, it more nearly resembles the boll worm in its habit of boring into the bolln of cotton and the fruit of tomato. It is a ver}" common species, but as a rule not especially destructive, as it is more solitary than the ccmmon cutworms. It has l)een observed attacking and doing more or less injury to beets, potato, asparagus, cabbage, cucumber, peach, and eottonwood. It is also common on violet, morning-glory, and other ornamental plants, and on weeds, and is frequently found in greenhouses. The moth has a wing expanse of a little less than 1^ inches, and is quite distinct from any which have already been con- sidered, the fore-wings having a more complicated pattern. There is much varia- tion in the colors, which has caused differ- ently colored varieties to be described as species. Two extreme forms are shown in figure 29. That they are mere colorational varieties of one species has l)een proved by the writer by rearing both from an egg mass deposited by a single female (Bui. 27, new series, Div. Ent., pp. 64-73, 11-i). The larva is subject to the same varia- tion as the moth. The ground color is generally olive or greenish brown, finely lined with dark gray and brown, while the upper surface is ornamented with a double row of velvety black or greenish spots, which give it a st
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