Like other mantises, Apteromantis aptera is a skilled predator. The forelegs are held against the body until prey is in range, at which point the mantis shoots the legs forward to seize its victim. Grasped firmly, the prey is then brought to the mouth and eaten (6). As in other mantis species, the diet of Apteromantis aptera consists mainly of insects and other arthropods (2) (3) (4), particularly orthopterans (grasshoppers and crickets) (3). This species is active during the day (3).
Apteromantis aptera is likely to have an annual life cycle, with one generation per year. This means that it is likely to overwinter as a nymph and reach the adult stage in late spring, the adults dying later in the year (8).
Female mantises lay eggs in a capsule known as an ‘ootheca’, the size and shape of which differs between species. The ootheca hardens on contact with the air, protecting the developing eggs within (6). In Apteromantis aptera, the female lays around 30 to 40 eggs within an ootheca which measures around 1 centimetre in length (2) (3) (4). The number of oothecae laid by each female is currently unknown (4).
Apteromantis aptera lays its eggs between May and June, with the young mantises, known as nymphs, hatching between July and August (3). As in other mantises, the young of Apteromantis aptera resemble small versions of the adult, but are likely to pass through several moults before undergoing a final moult into the full adult form (6).