1. Anterior margin of frontoclypeus with 1 or 2 small, raised lump(s) in broad excision (Fig, 1,1). . (Endangered species). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Chimarra socia
Anterior margin of frontoclypeus without small, raised lumps in excision. . . . . . . . . . . . . . . . 2
2. Anterior margin with excision of frontoclypeus with broad, shallow left notch and moderately deep traingular, rounded or truncate right notch (Fig. 1.2). . . . . . . . . . . . . . . . . . . . . . . . . . 3
Anterior margin of frontoclypeus with single, deep, rounded depression to right of midline between 2 prominent projections (Fig. 1.3). . . . . . . . . . . . . . . . . . Chimarra obscura
3. Anterior margin of frontoclypeus with left and right projections triangular; right notch with 2 small rounded incisions separated by small lump. . . . . . . . . . . . . . . . . . . . . Chimarra feria
Anterior margin of frontoclypeus with left notch indiscinct, with nearly straight, oblique edge from left projection to right notch (Fig. 1.5). . . . . . . . . . . . . . . . . . . . . Chimarra aterrima
Key to Species of Chimarra Nymphs