155 
the habitat there being given as Canada (Pettit), Albany, 29". Y, (Lint- 
ner). Prof. G. H. French, who first determined the species for me, 
has it from Maine and New York, and Prof. John B. Smith has it from 
Maine to Ohio, Minnesota to Colorado. How far south it extends I 
do not know. The adults are so exceedingly quick in movement and 
secluded in habit that it is not surprising that it should be overlooked. 
Several specimens of both sexes that were transferred from the cage 
in which they were reared to another in which grass was growing were 
not observed afterwards. 
The habits of the larvae are in strange contrast with those of stipata, 
at least in the cornfields, where that species works entirely below 
ground, entering the stem just above 
the roots and eating its way upward, 
whilein this species they climb up the 
plant and eat downward, devouring 
the whole interior of the stem down 
to a point where the stipata would be- 
gin. If the plant be a young one — 
that is only 2 or 3 inches in height — 
these larva3 will enter the cylinder 
formed by the youngest leaf, but if 
the plant be older and tougher they 
will eat downward along the edges, 
as shown in Fig. 5, until the tissue is 
more tender, when they will enter the 
stem and work downward. The time 
of oviposition I am unable to give. 
Larvae, from two-thirds to quite full 
grown, were taken the last of June, 
when they were said by farmers to be 
disappearing. From these larvae 
imagoes appeared, in the insectary, the 
last days of July and up to the 10th 
of August. I did not observe them, 
nor can I learn of their occurrence 
elsewhere than on spring-plowed grass 
land, and this either wholly or in part 
timothy sward. There appeared to 
be no difference in point of injury between early and late spring plow- 
ing. There did not appear to be any disposition on the part of the 
larvae to wander about, but if the corn was planted in hilks, after finish- 
ing one stalk they would abandon it and attack another, and so on 
until all were destroyed. 
Description of the Larva. (Fig. 5, a). — Length 26 mna ; color, yellowish white, two 
dark, broad, dorsal stripes separated by a narrower light stripe of the general color 
of the body, the dark stripes extending from the anal segment forward, unbroken, 
Fig. 5. 
Hadena fractilinea ■. a, lava; b, pupa — 
nat. size. (Webster del.) 
