194 THE CANADIAN ENTOMOLOGIST. 



Melaiioplus femur-rubrum, DeG. The Red-thighed Locust. 



Last on the list of destructive locusts is herewith presented the one that 

 perhaps enjoys the greatest geographical range of all of our species It is 

 the common one in all parts of the country from the Atlantic to the 

 Pacific and from the Arctic circle to Central America. Its devastations, 

 while perhaps not as vast as some of the preceding, have been more 

 frequent and have occurred at more localities than those of any other one. 

 Like the bivittatus, differentialis and several of our non-destructive 

 species, femiir-rubrum is a frequenter of rather low places and rank 

 vegetation. 



After giving these brief notes on the various species of locusts that 

 have been known in the past to have been connected with the injuries 

 from this class of insects within the country, it will not come amiss for 

 me to say a few words about the subject for the present season, and to 

 give my opinion as to the probable outlook for the coming year. Briefly, 

 then, let me say that there have been received reports of locust injury 

 from the following States : — Alabama, Mississippi, Texas, New Mexico, 

 Arizona, California, Idaho, Colorado, Kansas, Nebraska, North Dakota, 

 Minnesota, Iowa, Indiana, Ohio, Michigan and New York. In fact, 

 there have been more separate reports received the present year than 

 ever heretofore from this cause. 



Now a word or two as to the different species of these destructive 

 locusts that are responsible for the injuries of the present year. In 

 California the devastator is present] the Caninula pellucida is known to 

 be unduly common in Idaho, Minnesota, North Dakota and parts of the 

 Rocky Mountain region ; the Rocky Mountain or Migratory locust is the 

 one that is responsible for most of the injury that has been reported from 

 the Red River Valley of Minnesota and North Dakota as well as in 

 Manitoba to the north of the international boundary ; Alelanoplus diffe7'- 

 entialis is the one that must receive much of the blame for Kansas and 

 Nebraska injury ; while in the States of Indiana and 0\i\o feinur-riibrujn 

 and bivittatns are the guilty parties. Melanoplus atlanis is present in 

 injurious numbers in the Red River Valley along with bivittatns, spretus 

 and the Camnida pellucida. In Colorado and New Mexico for the first 

 time Dissosteira longipennis has appeared as one of the injurious species 

 of the country. 



While all of these locusts, along with nearly every other species of the 



