23b.Top front of head angulate in profile (Fig. 120). Fastigium distinct and concave. Pronotum with prozona much shorter than metazona. Hind tibiae with inner apical spur less than twice as long as outer. Frontal costa narrowed between or just behind antennae                    ... Pardalophora       ................................................................................ 24 24a. Posterior angle of pronotum usually obtuse. Inner face of hind femora unicolor yellow, orange, or red. Hind wing disk yellow, orange, or pink ... P. haidenwni (Scudder) HAILDEMAN'S GRASSHOPPER 24b. Posterior angle of pronotum acute. Inner face of hind femora, banded. Hind wing disk yellow, orange, or pink                   .................. 25 25a. Inner face of hind femora partly bluish with two to four black bands. Hind wing disk yellow, orange, or pink ... P. saussurei (Scudder) SAUSSURE'S GRASSHOPPER 25b.Inner face of hind femora yellow to orange with two to three black bands. Hind wing disk pink. Tegmina streaked and blotched, not spotted. Sand hills or oak woodland ... P. apiculata (Harris). Color plate 4. 26a. Head large relative to pronotum, top of head higher than top of pronotum (Fig. 121). Frontal ridge usually strongly grooved        ..................................................... 27 26b. Head small relative to pronotum (Fig. 122). Top of head nearly even with top of pronotwn. Frontal ridge flat or slightly grooved         ........................................... 37 27a. Cerci flattened, spoon-shaped in both sexes (Fig. 123). Hind wing disk yellow, orange, or pink, with band ... Metatorpardatinus (Saussure) PARD GRASSHOPPER 27b.Cerci conical (Fig. 124)           ................................... 28 28a.Pronotum smooth with median ridge incon- spicuous. With sharp, thin, white lines along lateral carinae, bordered by contrasting dark color. Hind wing disk yellowish            ... Hippopedon        .............................................. 29 28b.Pronotum with median ridge well developed, at least in paM or pronotum rough with lat- eW prominence on each side of aiidline.. 30 29a. Hind wings with dark band. Basal area yellow ... H. capito (SW) 29b.Hind wings without band. Basal area clear to yellow ... H. gracilipes (Caudell) 30a. Lower posterior margin of prono-