Fig. 1 in Description of two new surface behaviors in the antlion Vella americana Drury (Neuroptera: Myrmeleontidae)

Fig. 1. New surface behaviors of Vella americana. F1: First step of flick: V. americana exposes head at the surface. F2: Second step of flick: V. americana snaps its head upward, then quickly returns to position A. Flicking is ofen performed several times in succession before submerging. Substrate may be tossed but this is not always the case. S: A spyhop, in which V. americana orients vertically and remains very still with head and cervical area exposed. Body position is inferred based on flexibility of head and burrowing direction.