42 
been stated, the habits of the two migratory species now found 
in Minnesota vary to some extent, and it is best to describe them 
in detail. 
THE LESSER MIGRATORY LOCUST. 
(Melanoplus atlanis Riley. ) 
This locust, of which an illustration is given in Fig. 20, d, e and 
f, resembles very closely the Rocky Mountain species, 
Fig. 21, but is alittle smaller. Of course there are other dis- 
tinguishing characters not neces- 
sary toenlarge upon at this time. 
Like the former species it has 
=a wings much longer than the 
FIG. 21.—Rocky Mountain Locust. body, and is thus enabled to 
Natural size. After Riley. fly long distances. The longer 
wings, besides other characters, distinguishes it from our com- 
mon red-legged locust, which is illustrated in Fig. 22. The 
lesser migratory locust is essen- 
tially an eastern species, and is 
found in larger or smaller num- 
bers from the northern part of 
Florida to the extreme north of FIG. 22.—Common Red-Legged Lo- 
eastern United States. Like the cust. Natural size. After Riley. 
‘‘Hateful’” western locust it is single brooded in Minnesota, 
but has the tendency to become cCouble-brooded, a property in 
our favor, as all the young that are hatched during a warm 
autumn are doomed to die. This species matures more rapidly 
than the pellucidand the Rocky-mountain species, hatching early 
in May and becoming winged early in July. This depends to 
a large extent upon the climatic conditions prevailing in that 
year. Eggs are deposited soon afterward, and oviposition 
continues for several months, though specimens of the adult 
insects become very scarce early in September, and those found 
show their old age by the frayed out wings. The life-history 
of this insect is almost identical with that of the western or 
Rocky-mountain species. It seems to be a geographical variety 
of the same, which has established a home in the eastern 
mountains, where it always breeds, and on account of which it 
is frequently called the ‘‘White Mountain Locust.” Itis avery 


