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pale clay color, or of a dull ochreous-yellow to olive-green, 
with variable pale olive or dark-rufous markings on the fore 
wings. The whitish hind wings do not vary so much, having 
always a broad blackish band, suffused with pink, at the mar- 
gin, and being usually much paler than the fore wings. The 
illustration (Fig. 54, Plate 11) shows the normal form of this 
moth, which expands a little more than an inch and a half. 
The moths have been caught on the wing in Minnesota early in 
October, while others were caught on baited trees on October 
20. None were caught early in the season, but a related 
Species was found flying on June 1. Early in October the 
moths are not unfrequently caught at the electric lights. 
Though generally nocturnal in their habits these moths fly also 
during the day. It seems that this insect does not winter in 
Minnesota, but that all are killed late in the fall. This would 
mean that the insect has to be re-introduced every summer from 
the more southern states, where it can successfully hibernate. 
After mating, the female deposits her beautiful eggs upon the 
various food-plants mentioned before. These eggs are nearly 
white, inclined to yellowish, and are about seven millimeters in 
diameter; their surface is sculptured, having polar ribs with 
cross furrows. A dissection of the ovaries shows that the 
female can deposit about five hundred eggs. If the female 
selects corn she deposits her egg upon the stalk or leaves, pre- 
ferring the under side of the latter. These eggs soon hatch (in 
three to five days), and the young caterpillars, which possess a 
somewhat roving disposition, move about from leaf to leaf, 
until they find food to their taste. As a general rule they 
detect the tassels of the plant, or later the tender kernels 
inside the husks, which they enter, and where they enjoy life by 
rioting in the tender food surrounding them. I am not pre- 
pared at the present time to state how many broods may occur 
in our state; the worms found under the husk are usually all of 
about the same size, which would indicate but one annual 
brood. 
The caterpillars vary greatly in color and markings, yet they 
are most commonly pale-green with longitudinal white or grey- 
ish stripes. A common form has the following markings: on 
each side a broad lateral whitish stripe; above this a narrow 
dusky one, and upon the back another narrow dusky stripe 
