ORTHOPTERA. 1 07 



times assumes the migratory habit, and is sometimes injurious to 

 agriculture. 



2. Dictydphorns. This genus is represented by a very large and 

 clumsy locust, which occurs in the southern part of our country, 

 D. rcticuldtus. The adult is yellow and black ; the tegmina and 

 wings arc shorter than the abdomen ; the base and disk of the wings 

 arc red, with the outer margin black. Length of body in female 

 about 60 mm. (2.4 in.), in male 50 mm. (2 in.). The nymphs of this 

 species differ remarkably from the perfect insect, being of a very deep 

 metallic bronze-green color approaching black, marked with yd 

 deepening into red in spots, or wholly with blood-red; this is most 

 conspicuous in a slender dorsal stripe the whole length of the i 

 ture, and on the hinder edge of the pronotum. I found ti 

 nymphs very abundant in May at Jacksonville, Fla. 



3. Pczotcttix. To the genus Pezotettix belong a considerable 

 number of short-winged locusts, of medium or small size. More 

 than forty species have been found in the United States, but nearly 

 all of these are from the Far West or from the South. The nu-m- 



of this genus, according to Brunner, with but few except; 

 prefer cool and shady localities, and hence are often found among 

 or near rocks, on mountain slopes, in clearings or on the outskirts 

 of timber belts, and in meadows. 



The only species of Pezotettix that has been taken at Ith.i 

 considerable number bA&ri, occurs among .on 



the crests and slopes of our highest hills. This 



rec in form and appearance to the 



Common Red-legged Locust, Mcliuwplu* j\mui -ruhrmn. The only 

 conspicuous difference is in the organs of flight : in /'. 5 the 



wing-covers do not extend beyond tin- second abdomin.i ;t. 



.'<ifiti/is tlu- wings and v, wanting. 



Thi inhabits the mountain- ot igland; it i 



: . N. Y. 



:ic brightest col< I .ill <>ur 1 I It is 



blui n, with bright red and yellow markings. ,,nd is found <>n 



oping eastward from the Rocky Mountains. 



4. Mtlaihiplus. We have mam of locusts, \\huh 1>< 

 to this gnu; 



most <i of the family Acridiidae. Mi 



ning tlu-m : l>ir 

 that they belong to tin . it will be necessary to 



