16-8-2023 MONTE CORONA, VALENCIA - MEDITERRANEAN MANTIS (JUVENILE) (Iris oratoria)

Two novel I. oratoria survival strategies may have contributed to the expansion of this species beyond its original range, and its success in areas formerly occupied by other mantids such as Stagmomantis carolina. Firstly, this species is capable of parthenogenic reproduction when males are scarce. Secondly, additional I. oratoria nymphs may emerge from their oothecae in the second season after the egg case is produced, i.e., when their siblings are already grown and are producing their own offspring.

The Mediterranean mantis is known for two distinctive behaviours, apart from the ambush hunting common to other mantids: cannibalism and deimatic or threat displays. The sexual cannibalism of mantids known in popular culture occurs in roughly one quarter of all intersexual encounters of I. oratoria.

When the mantis is under attack, it sets in motion a complex series of actions which combine to form a startling deimatic display. The mantis turns to face the aggressor, rears up by arching its back, curls its abdomen upwards (dorsiflexion), raises and waves its forelimbs, raises its wings to displays the large brightly coloured eyespots on the hindwings, and stridulates by scraping the edge of its hindwings against its tegmina, the leathery front wings.