44 NORTH AMERICAN ACRIDIIDjE. 



Upper Austral and Transition zones. This species is most 

 plentiful in or near sylvan habitats, being found usually in or on 

 the borders of dry, open woodlands, groves, and thickets. It is 

 an expert leaper, using its legs as a means of escaping its enemies 

 quite as freely as its wings, though flying freely on occasion. It is 

 interesting to note, in this connection, that its wings are distinctly 

 abbreviated as compared with those of purely campestrian species 

 such as femur-rubrum and atlanis. 



Melanoplus deletor Scudd. 



South Carolina: Denmark, Aug. 14, 15. 



Lower Austral zone. Locally common in shrubbery among 

 pines near swampy ground. 



Melanoplus differentialis uhler. 



Tennessee : Chattanooga, Aug. 24. 



Austral zones, almost exclusively west of the Appalachians. 

 This species was found in considerable numbers in the rank vegeta- 

 tion of the bottom-land along a creek, where it was accompanied by 

 Dichromorpha viridis, Tryxalis brevicornis, and Schistocerca americana. 



Melanoplus symmetricus Morse. 



Melanoplus symmeiricus. Psyche, xi, 8 (1904). 



" A long-winged species allied to robustus. Furcula wanting. 

 Cerci stout at base, laminate and a little incurved at tip, broad, 

 nearly symmetrical, the basal half or three-fifths a little longer than 

 wide, with subequal, subparallel sides ; the distal half or two-fifths 

 broadened equally above and below into a transverse plate with 

 axis perpendicular to that of the stem, its length one and two-thirds 

 times the width of the stem, the apex smoothly convex (sometimes 

 sinuous through extension of lower angle of lobe), the proximal 

 sides straight and leaving the stem at an angle of 30 or 40 , the 

 dorsal portion of the plate slightly broader and its angle more 

 rounded than the lower. 



"General color brownish testaceous; hind tibiae red with 

 black spines. Hind femora stout, flavous on outer lower face, coral 

 red within on basal two-thirds, often showing indications of oblique 

 fuscous fasciae. 



" Length of body : male, 28-30 ; female, 31-34.5; hind femora: 

 male, 16-18; female, 19-20; antenna: male, 13. 5-14. 5; female, 

 11-14; tegmina : male, 20-22; female, 21-23; vertex to tip of 

 tegmina : male, 30-31.5 ; female, 30.5-33.5 mm." 



(See Fig. 10, p. 46 drawing of male cercus.) 

 Florida: Carrabelle, Aug. 9. 



