Complete Praying Mantis Care Guide
This page is educational reference material for preparing questions. A licensed veterinarian examines the animal, makes the diagnosis, and sets the treatment.
Praying mantises are captivating insects known for their unique hunting behavior, alien-like appearance, and surprising intelligence. They make excellent beginner exotic pets with relatively simple care requirements. This article covers everything you need to know to successfully keep these remarkable predators.
Understanding Mantises
Before bringing home a mantis, it's important to understand their nature and lifecycle.
Key Characteristics
- Lifespan: 6-12 months typically (varies by species)
- Size: 1-6 inches depending on species
- Activity: Ambush predators; spend much time motionless waiting for prey
- Temperament: Generally calm, many tolerate handling
- Housing: Must be kept individually (cannibalistic)
- Growth: Go through multiple instars (molting stages)
Lifecycle Stages
- L1-L3 (early instars): Tiny nymphs, delicate, need small prey
- L4-L6 (mid instars): Growing rapidly, eating more
- Subadult: Wing buds visible, one molt from adult
- Adult: Fully developed wings, sexually mature
Choosing Your Mantis
There are over 2,400 mantis species, with many available in the pet trade.
Beginner-Friendly Species
- Chinese Mantis (Tenodera sinensis): Large, hardy, commonly available, tolerant of varying conditions
- European Mantis (Mantis religiosa): Classic green mantis, hardy
- African Mantis (Sphodromantis species): Large, calm, great feeders
- Giant Asian Mantis (Hierodula membranacea): Large, hardy, impressive
- Carolina Mantis (Stagmomantis carolina): Native US species, smaller but hardy
- Ghost Mantis (Phyllocrania paradoxa): Unique appearance, relatively easy
Intermediate/Advanced Species
- Orchid Mantis (Hymenopus coronatus): Stunning but needs specific conditions
- Devil's Flower Mantis (Idolomantis diabolica): Impressive but challenging
- Violin Mantis (Gongylus gongyloides): Unique but needs flying prey
Enclosure Setup
Mantis enclosures need to accommodate their unique molting behavior.
Size Requirements
- Minimum height: At least 3x the mantis's body length
- Minimum width: At least 2x the mantis's body length
- Critical: Height is more important than floor space for molting
Enclosure Types
- Mesh enclosures: Excellent ventilation, easy to hang from for molting
- Deli cups (for nymphs): Affordable, easy to maintain humidity
- Glass/plastic terrariums: Work well with mesh or fabric ceiling
- Net cube cages: Great ventilation and climbing surfaces
Molting Space Critical
Mantises hang upside down to molt. If the enclosure is too short or lacks proper hanging surfaces, the mantis can fall during molting, causing deformities or death. Always ensure adequate vertical space and textured surfaces for gripping.
Substrate and Decor
- Substrate: Paper towel, coco fiber, or soil (optional)
- Branches/twigs: For climbing and perching
- Fake plants: Provide cover and climbing surfaces
- Mesh ceiling: Essential for hanging during molts
Temperature and Humidity
Requirements vary by species origin.
Temperature Guidelines
- Most species: 72-85°F (22-29°C)
- Room temperature: Often sufficient for hardy species
- Warmer temperatures: Increase metabolism and growth rate
- Heat source: Low-wattage heat lamp or mat if needed
Humidity Guidelines
- Most species: 40-60% humidity
- Tropical species: 60-80% humidity
- Misting: Light misting every 1-2 days
- Drinking: Mantises drink water droplets from misting
- Ventilation: Critical; stagnant air causes problems
Humidity During Molting
Adequate humidity is critical during molting. If too dry, the mantis can become stuck in its old exoskeleton. Increase misting if you notice premolt signs (not eating, hanging upside down, dull coloration).
Feeding
Mantises are carnivorous predators that eat live prey exclusively.
Appropriate Prey
- Fruit flies (Drosophila): For L1-L3 nymphs; flightless varieties easiest
- House flies/blue bottle flies: For juveniles and adults; excellent prey
- Crickets: Widely available; size appropriate to mantis
- Moths: Natural prey, highly nutritious
- Roaches: Good nutrition; use smaller species
- Occasionally: Waxworms, mealworms, bees (for larger mantises)
Feeding Schedule
- Young nymphs: Daily feeding with small prey
- Juveniles: Every 2-3 days
- Adults: Every 3-5 days; larger prey items
- Prey size: No larger than 1/2 to 2/3 the mantis's body length
Feeding Tips
- Flying prey (flies) are often preferred and trigger strong feeding response
- Some mantises refuse prey on the ground; offer prey that climbs
- Remove uneaten prey to prevent stress
- A well-fed mantis has a plump abdomen
Molting
Mantises undergo incomplete metamorphosis, molting 6-9 times before reaching adulthood.
Signs of Premolt
- Loss of appetite (may refuse food for days)
- Hanging upside down more frequently
- Abdomen appears swollen
- Duller coloration
- Less responsive to prey
During Molting
- Mantis hangs upside down from mesh or branch
- Process takes 15 minutes to several hours
- Do not disturb: Any interference can be fatal
- Ensure humidity is adequate
- Remove any live prey from enclosure
Mismolt Emergency
If a mantis appears stuck during molt, very gently mist the old exoskeleton with warm water. Do not pull on the molt. If limbs are trapped, the mantis may survive with deformities. Sometimes leg loss occurs but isn't always fatal. Mismolts often result from low humidity or disturbance.
Post-Molt Care
- Do not feed for 24-48 hours (exoskeleton needs to harden)
- Mantis will appear pale and delicate initially
- Colors will intensify as exoskeleton hardens
- May eat the old exoskeleton (normal behavior)
Handling
Many mantis species tolerate handling well.
Safe Handling Practices
- Let the mantis walk onto your hand voluntarily
- Move slowly and avoid sudden movements
- Never squeeze or grab the mantis
- Handle over a soft surface in case of falls
- Avoid handling during premolt or right after molting
- Avoid handling when hungry (may bite investigating your skin)
Biting
- Mantis bites are not dangerous to humans
- Larger species can draw blood
- Usually only bite when mistaking fingers for prey
- Don't pull away suddenly; mantis will usually release
Health Concerns
Mantises are generally hardy but can experience issues.
Common Problems
- Mismolts: Caused by low humidity, disturbance, or inadequate space
- Refusal to eat: May be premolt, wrong prey type, or too cold
- Leg loss: Can happen from mismolt or predator prey; often survive
- Dehydration: Shriveled appearance; increase misting
- Blackening of limbs: May indicate infection or injury
Signs of Healthy Mantis
- Alert and responsive to movement
- Good feeding response
- Plump abdomen (not overly distended)
- Clean, intact limbs
- Clear eyes
Breeding
Breeding mantises can be rewarding but requires planning.
Key Considerations
- Sexual cannibalism: Females may eat males during or after mating
- Ootheca (egg case): Females produce foam egg cases containing 50-200+ eggs
- Hatching: Hundreds of tiny nymphs emerge simultaneously
- Separation: Nymphs must be separated quickly to prevent cannibalism
- Fruit flies: Need ample supply for feeding nymphs
Breeding Preparation
Don't breed mantises unless prepared to house and feed potentially hundreds of nymphs, or have a plan for their distribution. Nymphs are cannibalistic and require individual containers and daily feeding with tiny prey.
Common Beginner Mistakes
- Enclosure too small: Inadequate molting space causes mismolts
- Low humidity: Critical for successful molting
- Wrong prey size: Prey too large can injure mantis
- Cohabitation: Mantises are cannibalistic; always house alone
- Poor ventilation: Stagnant air promotes mold and illness
- Disturbing during molt: Can cause fatal mismolt
- Overfeeding: Can shorten lifespan and cause issues
- Smooth surfaces: Need textured surfaces for gripping
Ask the AI About Mantis Care
Have questions about mantis species, molting issues, or feeding concerns? Our AI assistant can provide personalized guidance for your praying mantis.