Predatory Stink Bug, Alcaeorrhynchus grandis (Dallas) (Hemiptera: Pentatomidae) -- Figure 2. Mating adults of the predatory stink bug, Alcaeorrhynchus grandis (Dallas). Alcaeorrhynchus grandis adults have double spines on the humeral angles. For example, notice the right humeral spines on the adult on the right, one of which is longer and more pointed than the other. This is a key identifying characteristic.

EENY165: Predatory Stink Bug, Alcaeorrhynchus grandis (Dallas) (Hemiptera: Pentatomidae)

Figure 2. Mating adults of the predatory stink bug, Alcaeorrhynchus grandis (Dallas).

Credit: Photograph by: Lyle J. Buss, University of Florida