Devil's Flower Mantis

Idolomantis diabolica

MantisadvancedHarmless

No venom, no sting

Mantises are harmless to humans. They have no venom or sting — the worst they can do is grip with their spined forelegs or deliver a startling but harmless nip.

About

One of the largest and most spectacular mantises kept — the 'King of mantids' — with an unmatched startle display of banded forelegs and wings. It is an advanced species: molting is the number-one killer, and its intricate body shape means a single bad molt is usually fatal. Keep it hot (85-95°F) and mostly dry (40-60%), but raise humidity sharply for the critical subadult molt to adult, mimicking the African rainy season. A strict flying-prey specialist — feed flies and moths; it generally ignores crickets and roaches. Needs a tall, very well-ventilated enclosure and warmth from a lamp rather than a damp tank. Not for beginners. Harmless to humans.

Taxonomy

FamilyEmpusidae

GenusIdolomantis

Native regionEast Africa (Ethiopia, Kenya, Tanzania, Somalia)

TypeArboreal

Temperamentskittish; dramatic threat display

Size & growth

Adult sizeup to 5 inches (~13 cm)

Length90.00–130.00 mm

Growth ratemedium

Climate

Temperature85–95 °F

Humidity40–60%

Enclosure

Adult size≥3x body length tall, 2x wide; well-ventilated

Substratecoco fiber or paper towel; light misting for humidity/drinking

Substrate depth1-2 inches

Water dishOptional

Feeding

Feeding modePredator (live prey)

Prey sizeflying insects only — flies, moths, bluebottles (refuses crawling prey)

Sling cadenceevery 2-3 days

Juvenile cadenceevery 3-4 days

Adult cadenceevery 4-5 days

Times kept: 0