| Pronotum, lateral lobes uniformily colored or with lighter-colored areas or maculae in pro or metazona | Pronotum, lateral lobes of general color of body, with neatly defined light-colored margin which is narrowest on anterior part, widens in lower part and is widest posteriorly |
| Tegminae, vannal region (upper surface of tegmen when folded) light-colored; below this area a black or piceous stripe along PCu or 1A veins; rest of tegmen uniformly colored green or purplish-green, or with light-colored areas or maculae variously distributed in different species | Tegminae, vannal region light-colored, then dark-colored stripe along PCu- 1A veins like Agriacris, below this, wide area of general color of body, light-colored marginal band on costal area, separeted from color above by black or fuscous stripe along C vein or before it, this stripe well marked on basal third of tegmen may weaken or dissappear altogether |
| Wings, membrane opaque, for the most part tinged with red, orange or yellow, apex and posterior margin of wing infuscated, costal area frequently of different color from rest of wing, the only transparent part being the resonatory area immediately caudad of stridulatory mechanism in 2nd vannal vein, and sometimes also the resonatory area anterior to it | Wings membrane uniformly transparent, sometimes slightly tinged with green |
Hind femora lower median carinae and usually also lower inner carinae denticulated like upper median one
| Hind femora carina smooth; in some species with very small, insconspicuous denticulations
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| Hind tibiae, inner spines very long, narrow and curved | Hind tibiae, inner spine usually shorter, thicker and straighter than in Agriacris |
| Genitalia, upper endophallic valves long and smooth | Genitalia, upper endophallic valves comparatively shorter, thicker and slightly corrugated laterally on apical part |
| Habitat, generally in humid forested areas | Habitat, generally in open plant formations such as the Cerrado, Chaqueña or Pampean provinces |
| Distribution: Panama and Northern South America to Tropic of Capricorn | Distribution: Southern part of S. America, from the 10th to 36th parallel |
