turn broadly rounded ... Derotmenw                 ............................................ 31 30b.Lower posterior margin of pronotum angulate, pointed or toothed ....................................................................................................... 32 3 la. Posterior margin of pronotal disk angulate (Fig. 125)                    ...        D. haydeni (Thomas) HAYDEN'S GRASSHOPPER 3 lb. Posterior margin of pronotal disk rounded (Fig. 126)                    ...         D. laticinctum Scudder 32a. Pronotum with small white spot or thunib-shaped marking near lower center of lateral lobe (Fig. 127)              ...  Trachy- rhachys     ........................................................................... 33 32b.Pronotum with broad pale mark occupying lower portion of lateral lobe (Fig. 128)         ................................................ 35 33a. Tegmina leopard-spotted, with several irregular dark spots. With narrow line along anal angle. Hind wing disk yellow or orange with black band ... T coronata Scudder CROWNED GRASSHOPPER 33b.Tegmina with few dark crossbands (often incomplete) ................................................................................ 34 34a. Hind wing disk yellow with dark band occupying apical half. Central dark band on upper face of hind femora slanting (Fig. 129). Hind tibiae black at distal end ... T. aspera Scudder FU,4NED GRASSHOPPER. Color plate 8. 34b. Hind wing disk clear to yellow; dark band, if present across middle, apex clear (Fig. 130). Central dark band on upper face of hind femora triangular or not slanted (Fig. 13 1). lfind tibiae not black at distal end ... T kiowa (Thomas) KIOWA RANGE GRASSHOPPER. Color plate 8. 35a. Hind wings without dark band, base of hind wings pink or red ... Trepidulus rosaceus (Scudder) 35b.Hind wings with distinct dark band                ... Mestobregma         ............................................ 36 36a.Crossbands reaching midline of tegmina (Fig. 132). Usually with black slanting band in front and below eyes (Fig. 128). Basal area of hind wings yellow, orange, or pink ... M. plauei (Thomas) PLATTE RANGE GRASSHOPPER. Color plate 4.