Key to Apheloria species, based on adult males

1a. Gonopod acropodite ρ-shaped (Fig. 18A); prefemur with a short, blunt prefemoral process located marginally (Fig. 18B, pfp)......................................................................................... A. whiteheadi

1b. Gonopod acropodite circular, O-shaped (Figs 4A, 7A, 8A, 9A, 13A); prefemur with a long, scythe-like prefemoral process (Figs 4A, 7A, 8A, 9A, 13A) pfp)......................................................................... 2

2a. With distinct bend tubercle at prefemur-acropodite junction (Fig. 4B, 7B, 13B, bt).................................. 3

2b. With acute angle at prefemur-acropodite junction (Fig. 8B, 9B), lacking a distinct bend tubercle at junction.............. 5

3a. Gonopod acropodite circular but with elbow (Fig. 7A, elb)......................................... A. virginiensis

3b. Gonopod acropodite smoothly circular, O-shaped (Figs 4A, 13A), lacking elbow................................... 4

4a. Base of gonopod acropodite with a triangular tubercle posteriorly (Fig. 4B, bt); prefemoral process shorter and broader basally..................................................................................... A. corrugata

4b. Base of gonopod acropodite with small, indistinct rounded tubercle posteriorly (Fig. 13B, bt); prefemoral process longer and of uniform width basally......................................................................... A. montana

5a. Acropodite gradually tapered to curved acuminate, J-shaped apex (Fig. 8B); prefemoral process short....... A. polychroma

5b. Acropodite tapered to L-shaped acuminate apex and abruptly twisted (Fig.9B); prefemoral process long A. uwharrie sp. nov.