NORTH AMERICAN ACRIDIIDjE. 51 



attenuatus, showing indications of the marginal dentate plication of 

 that species. Cerci slender, very nearly symmetrical, three times 

 as long as broad, the middle third narrowed to one-half or less of 

 the width of the base, spatulate, with slightly emarginate symmetri- 

 cal apex, the tip a little incurved, thin, and longitudinally inrolled, 

 i. <?., from side to side convex externally, concave internally, sub- 

 genital plate similar to that of attenuatus. 



" Color light yellowish green, without fuscous markings on sides 

 of abdomen. Hind tibiae glaucous. Post-ocular fuscous stripe 

 obsolete on metazone, interrupted on prozone by two narrow oblique 

 yellowish green fasciae. 



"Length of body: male, 17; hind/femora: male, 11.5; antenna: 

 male, 12; tegmina : male, 2X3 mm." 

 Georgia: Savannah, Aug. 14. 



lyower Austral zone. A near relative of attenuatus and occur- 

 ring in the same kind of habitat : tangled growth of grass, sedge, 

 weeds, etc. , on swampy ground. 



Melanoplus rotundipennis Scudd. 

 Florida : Live Oak, Aug. 10. 



Gulf strip of Lower Austral zone. Quite numerous at one spot 

 in the piney woods, varying much in color according to background, 

 from mottled grayish on sand to dark red-brown among leaves and 

 other plant debris. 



FIG. ii. Melanoplus decoratus. Lateral view of end of abdomen of male. 

 FIG. 12. Melanoplus strumosus. Lateral view of end of abdomen of male. 

 FIG. 13. Melanoplus strumosus. Dorsal view of end of abdomen of male. 

 (Magnified 6 diameters.) 



Melanoplus decoratus Morse. 



Melanoplus decoratus. Psyche, xi, 12 (1904). 



" Related to decorus (Scudder, Rev. Mel., p. 257, pi. 17, fig. 5). 

 Vertex rather strongly protuberant, especially in female. Pronotum 

 with mid-carina strong on metazone, weak or indistinct on prozone. 



