98 INSECT PESTS OF FARM, GARDEN AND ORCHARD 



This usually takes place during June and early July in the 

 North, and as early as April in Texas, so that it is frequently 

 impossible to distinguish the broods of the temporary region 

 from the incoming brood which has migrated from the permanent 

 region. Although the eggs for a second brood are sometimes 

 laid, these seldom come to maturity, and the species is essen- 

 tially single-brooded. 



The Lesser Migratory Locust 



Besides the Rocky Mountain locust there is only one other 

 species that truly possesses the habit of migrating, though to 

 a far lesser extent, and which is therefore known as the Lesser 

 Migratory Locust (Melanoplus atlantis Riley). It is considerably 

 smaller than its western relative and somewhat resembles the 

 red-legged locust both in size and appearance. The species 

 is very widely distributed, occurring from Florida to the Arctic 

 Circle east of the Mississippi, and on the Pacific slope north of 

 the fortieth parallel to the Yukon. The habits and life history 

 of the species are in all essentials practically the same as the 

 former species, except that they have no particular breeding- 

 grounds. Injuries by this grasshopper were first noticed hi 

 1743, almost seventy-five years before the first record of the 

 Rocky Mountain locust, and since then it has done more 

 or less serious damage in some part of the territory inhabited 

 every few years. 



Non-migratory Locusts 



There are several species of locusts which, though lacking 

 the migratory habit, and thus being more easily controlled, 

 often become so numerous as to do serious damage over limited 

 areas. Both as regards the regions inhabited, its habits, and 

 life history, the common Red-legged Locust (Melanoplus femur- 

 rubrum Har.) hardly differs from the last species, and is often 

 found in company with it. It is non-migratory, however, and 

 though the damage it does is thus entirely local, it is often of 

 considerable importance. 



