Hernández’s Casque-Headed Lizard (Corytophanes hernandezii)

Hernández’s Casque-Headed Lizard (Corytophanes hernandezii) Care Sheet

Hernández’s Casque-Headed Lizard (Corytophanes hernandezii) is a highly distinctive arboreal lizard from the tropical forests of Mexico and northern Central America. Like its relative the Helmeted Iguana (Corytophanes cristatus), it possesses a prominent helmet-like casque, laterally compressed body and remarkable cryptic colouration.

This is primarily a forest-understory ambush predator. Rather than continually running around an enclosure searching for food, it commonly remains motionless on a trunk or branch for extended periods, relying on camouflage while waiting for suitable prey.

Its sedentary appearance should not be mistaken for simple husbandry requirements.

Corytophanes hernandezii requires:

  • A tall arboreal enclosure
  • Dense vegetation
  • Numerous vertical and diagonal branches
  • Moderate tropical temperatures
  • A gentle basking opportunity
  • Appropriate UVB
  • Bright but heavily shaded lighting
  • High, fluctuating humidity
  • Excellent ventilation
  • Reliable drinking opportunities
  • A varied live-invertebrate diet
  • Minimal handling
  • Quiet surroundings

This species remains relatively uncommon in captivity and should be considered an:

intermediate-to-advanced specialist species.

Documented captive-bred animals should be strongly preferred whenever available.


Quick facts

Scientific name: Corytophanes hernandezii
Common names: Hernández’s Casque-Headed Lizard, Hernández’s Helmeted Basilisk, Smooth-Helmeted Iguana
Family: Corytophanidae
Distribution: Southern and eastern Mexico through Belize, Guatemala and Honduras
Lifestyle: Arboreal
Activity: Diurnal
Adult size: Approximately 25–35 cm (10–14 in) total length
Snout-to-vent length: Commonly approximately 10–14 cm (4–5½ in)
Diet: Primarily insectivorous
Day ambient temperature: Approximately 23–27°C (73–81°F)
Warm/basking area: Approximately 29–32°C (84–90°F)
Cool area: Approximately 21–24°C (70–75°F)
Night temperature: Approximately 18–22°C (64–72°F)
General humidity: Approximately 65–85%, with higher nighttime/post-misting peaks
UVB: Recommended for high-quality long-term husbandry
Suggested basking UVI: Approximately 2–3
Adult enclosure: At least approximately 90 × 60 × 120 cm (3 × 2 × 4 ft) for one adult; 120 × 60 × 150 cm (4 × 2 × 5 ft) or larger preferred
Housing: Individual housing safest
Reproduction: Egg-laying
Handling: Minimal
Experience level: Intermediate to advanced


Taxonomy

The accepted scientific name is:

Corytophanes hernandezii

It belongs to:

Family: Corytophanidae
Genus: Corytophanes

The genus contains three recognised species:

  • Corytophanes cristatus
  • Corytophanes hernandezii
  • Corytophanes percarinatus

Corytophanidae

The family Corytophanidae also contains:

  • Basilisks (Basiliscus)
  • Casque-headed lizards (Laemanctus)

Despite some common names containing the word:

“iguana”,

Corytophanes does not belong to the family Iguanidae.


Similarity to Corytophanes cristatus

Corytophanes hernandezii and C. cristatus have broadly similar ecological lifestyles.

Both are:

  • Arboreal
  • Cryptic
  • Forest-dwelling
  • Primarily insectivorous
  • Sit-and-wait predators

However, they should remain:

separate species-specific care sheets.


Identification

Hernández’s Casque-Headed Lizard has:

  • Prominent cranial casque
  • Laterally compressed body
  • Long slender limbs
  • Long digits
  • Long tail
  • Cryptic colouration

Casque

The casque produces a distinctive:

helmeted profile.

It also helps disrupt the outline of the head when the animal is resting against:

  • Bark
  • Vines
  • Vegetation

Colouration

Colour may include:

  • Green
  • Olive
  • Brown
  • Grey
  • Tan
  • Rust

Colour change

Individuals can change shade considerably according to:

  • Temperature
  • Stress
  • Background
  • Physiological state
  • Time of day

Camouflage

When stationary on:

  • Bark
  • Branches
  • Vines

the species can be remarkably difficult to detect.


Natural distribution

Corytophanes hernandezii occurs primarily through portions of:

  • Mexico
  • Belize
  • Guatemala
  • Honduras

Mexican distribution

The species occurs in tropical regions of southern and eastern Mexico, including areas associated with the:

  • Gulf slope
  • Yucatán region
  • Southern tropical forests

Natural habitat

Habitats include:

  • Tropical evergreen forest
  • Moist forest
  • Tropical semi-deciduous forest
  • Forest understory
  • Secondary woodland

Forest dependency

The species depends heavily upon structurally complex environments containing:

  • Trees
  • Saplings
  • Vines
  • Dense foliage
  • Leaf litter

Arboreal lifestyle

Most activity takes place on:

  • Tree trunks
  • Branches
  • Vines
  • Shrubby vegetation

Height above ground

Individuals frequently remain relatively low within the forest understory rather than occupying the highest canopy.

Captive housing should therefore reproduce:

dense understory structure rather than an empty tall enclosure.


Sit-and-wait hunting

Corytophanes hernandezii is primarily an:

ambush predator.

It may remain stationary for long periods before striking rapidly at nearby prey.


Low movement is not necessarily illness

A healthy animal may spend substantial periods:

motionless.

Health should therefore be judged using:

  • Body condition
  • Weight
  • Feeding
  • Eyes
  • Hydration
  • Grip strength

rather than activity alone.


Temperament

The species is generally:

shy and secretive.


Stress sensitivity

Persistent disturbance may cause:

  • Dark colouration
  • Refusal to feed
  • Excessive hiding
  • Escape attempts
  • Weight loss

Handling

Handling should be:

minimal.


Appropriate handling

Restrict handling to:

  • Health examinations
  • Weighing
  • Transfers
  • Veterinary treatment

Enclosure placement

Place the enclosure in a relatively:

quiet location.

Avoid constant:

  • Foot traffic
  • Loud vibration
  • Repeated disturbance

Adult enclosure size

For one adult, provide at least approximately:

90 × 60 × 120 cm (3 × 2 × 4 ft).


Preferred enclosure

Approximately:

120 × 60 × 150 cm (4 × 2 × 5 ft)

or larger is strongly preferred.


Height

Vertical space is essential because this is an:

arboreal species.


Usable space

An empty 150 cm tall enclosure is not genuinely useful.

The entire volume should contain:

  • Branches
  • Vines
  • Foliage
  • Perches

Enclosure type

Suitable options include:

  • Large glass terraria
  • PVC enclosures
  • Custom wooden vivaria
  • Hybrid glass/screen tropical enclosures

Ventilation

Provide:

excellent ventilation.


Humidity versus ventilation

High humidity does not mean sealing the enclosure.

The goal is:

humid, fresh air rather than stagnant wet air.


Cross ventilation

Low and high ventilation points can encourage:

natural air exchange.


Furnishings

Provide a dense network of:

  • Vertical branches
  • Diagonal branches
  • Horizontal perches
  • Cork bark
  • Vines
  • Live or artificial foliage

Vertical trunks

Vertical and near-vertical trunks are especially important because they closely reproduce natural:

resting positions.


Branch diameter

Offer several diameters.

The animal should be able to:

  • Grip securely
  • Rest against broad trunks
  • Move onto narrow branches

Upper basking perch

Provide a secure exposed perch beneath:

  • Gentle basking heat
  • UVB

Mid-level cover

The middle of the enclosure should contain substantial:

foliage and shade.


Lower cover

Provide:

  • Leaf litter
  • Plants
  • Cork
  • Low branches

near the enclosure floor.


Visual security

At least part of the enclosure should allow the animal to:

completely disappear from view.


Live plants

Suitable plants may include:

  • Pothos
  • Philodendron
  • Schefflera
  • Ficus
  • Bromeliads

provided they are non-toxic and free from:

  • Pesticides
  • Fertiliser residues

Plant preparation

Commercial houseplants should be thoroughly cleaned and ideally repotted into:

reptile-safe substrate.


Substrate

A tropical soil mixture can include:

  • Organic topsoil
  • Coco fibre
  • Orchid bark
  • Leaf litter

Substrate depth

Provide approximately:

10–15 cm (4–6 in)

for ordinary adult housing.


Female nesting substrate

Mature females should have access to at least:

20–25 cm (8–10 in)

of diggable substrate.


Drainage

In heavily misted enclosures, ensure excess water can:

drain away.


Waterlogging

Substrate should not become permanently:

swamp-like.


Leaf litter

Provide a generous surface layer of:

leaf litter.


Bioactive enclosure

The species is well suited to carefully designed bioactive housing.


Clean-up crew

Suitable organisms may include:

  • Springtails
  • Appropriate tropical isopods

Bioactive maintenance

Bioactive does not mean maintenance-free.

Continue to:

  • Spot clean
  • Remove spoiled food
  • Clean water containers
  • Monitor drainage
  • Maintain plants

Temperature philosophy

This is a tropical forest lizard, not an extreme-heat basking species.


Day ambient temperature

Maintain most of the enclosure around:

23–27°C (73–81°F).


Warm upper area

The warm upper zone can reach approximately:

27–29°C (81–84°F).


Basking area

Provide a gentle local basking area around:

29–32°C (84–90°F).


Avoid excessive heat

Do not provide routine basking surfaces of:

40°C+ (104°F+).


Heat sensitivity

A densely forested tropical lizard may suffer rapidly if trapped in an enclosure that becomes uniformly hot.


Cool area

Maintain shaded lower sections around:

21–24°C (70–75°F).


Thermal choice

The animal must be able to move freely between:

  • Warm exposed perches
  • Moderate forest-like areas
  • Cool shaded retreats

Night temperature

Allow temperatures to fall toward:

18–22°C (64–72°F).


Night cooling

A clear nighttime reduction is appropriate.


Heating

Use:

overhead heating.


Basking lamp

A low-output halogen flood is generally suitable.


Broad gentle warmth

Avoid a tiny intense hotspot.

The basking area should warm the animal:

gently and evenly.


Thermostat

Use suitable thermostatic or independent safety control.


Temperature monitoring

Use:

  • Digital thermometers
  • Infrared thermometer

Measure temperatures at:

actual perch level.


Lighting

Provide a clear bright:

day/night cycle.


Visible-spectrum lighting

Quality daylight LEDs can provide excellent general illumination.


Forest light gradient

The enclosure should contain:

  • Bright upper areas
  • Moderate mid-level light
  • Deep shade

Photoperiod

Approximately:

12 hours light / 12 hours dark

provides a suitable general baseline.


Night lighting

Provide:

complete darkness at night.


UVB

Appropriate UVB should be provided.


Suggested UV Index

Aim for approximately:

UVI 2–3

at the principal exposed basking perch.


Partially shaded areas

Provide approximately:

UVI 1–2

across less exposed branches.


Deep shade

Dense foliage should create areas approaching:

UVI 0.


What this means in practice

Use a quality:

linear T5 UVB lamp

over part of the enclosure.


Lamp choice

Required lamp strength depends upon:

  • Enclosure height
  • Mesh
  • Reflector
  • Lamp model
  • Perch distance

UV meter

Measurement with an appropriate UV meter is strongly recommended where possible.


Humidity

Corytophanes hernandezii requires:

moderate-to-high tropical humidity.


General humidity

Maintain approximately:

65–85%.


Post-misting humidity

Humidity may temporarily rise toward:

85–95%.


Daytime drying

Allow humidity to decline between misting sessions.


Night humidity

Humidity may naturally remain around:

80–90% or higher

during portions of the night.


Humidity fluctuations

Natural fluctuations are preferable to maintaining exactly the same percentage:

24 hours a day.


Ventilation

High humidity must always be balanced by:

fresh air exchange.


Misting

Mist approximately:

once or twice daily

as a starting point.

Adjust according to:

  • Enclosure size
  • Ventilation
  • Plant density
  • Season

Morning misting

Morning misting is particularly useful for stimulating:

drinking.


Evening misting

A lighter evening mist can help reproduce natural:

overnight humidity increases.


Automatic misting

Automatic systems can provide greater consistency.


Drainage

Automatic misting requires reliable:

drainage.


Drinking behaviour

The species may preferentially drink:

droplets from foliage and branches.


Water dish

Still provide a shallow container of:

clean fresh water.


Dripper

A slow dripper can provide additional hydration opportunities.


Dehydration

Never assume that high atmospheric humidity means the animal is automatically hydrated.


Diet

Hernández’s Casque-Headed Lizard is primarily:

insectivorous.


Natural prey

Wild prey is likely to include a broad range of:

  • Orthopterans
  • Beetles
  • Caterpillars
  • Spiders
  • Cockroaches
  • Other arthropods

Sit-and-wait feeding

Prey presentation should encourage natural:

ambush hunting.


Suitable captive feeders

Offer:

  • Crickets
  • Locusts
  • Appropriate roaches
  • Black soldier fly larvae
  • Silkworms

Additional variety

Occasionally offer:

  • Hornworms
  • Mealworms
  • Beetle larvae
  • Other safe captive-produced arthropods

Waxworms

Waxworms should be:

occasional treats only.


Vertebrate prey

Routine feeding of vertebrate prey is:

unnecessary.


Prey size

Offer insects small enough to be swallowed comfortably.


Elevated feeding

Some prey can be presented from:

  • Branch-mounted cups
  • Elevated ledges
  • Feeding tongs

Free-ranging prey

Controlled release of suitable insects can encourage:

natural hunting.


Loose crickets

Do not leave excessive numbers of crickets loose overnight.


Adult feeding

Healthy adults can generally be fed:

3–4 times weekly.


Juvenile feeding

Juveniles should receive appropriately sized prey:

daily or almost daily.


Gut loading

Feeder insects should be:

properly gut loaded.


Calcium

Dust appropriate prey regularly with:

calcium.


Multivitamin

Use a quality reptile multivitamin on a conservative schedule.


Vitamin D3

Supplemental D3 should be considered alongside actual:

UVB exposure.


Body condition

Monitor:

  • Weight
  • Tail base
  • Limbs
  • Overall musculature

Regular weighing

Because the animal may remain motionless even when healthy, objective weight records are particularly useful.


Social housing

Individual housing is:

the safest general approach.


Adult males

Adult males should not routinely be housed together.


Pair housing

Permanent male/female housing may result in:

  • Persistent courtship
  • Chasing
  • Feeding suppression
  • Chronic stress

Breeding introductions

Controlled breeding introductions may therefore be preferable.


Group housing

Group housing should only be considered by experienced keepers using:

substantially larger enclosures.


Reproduction

Corytophanes hernandezii is:

oviparous — egg-laying.


Reproductive information

Detailed captive reproductive information is considerably more limited than for many mainstream pet lizards.

Breeding should therefore be approached conservatively and observations carefully documented.


Seasonal cues

Reproduction is likely influenced by:

  • Rainfall
  • Humidity
  • Temperature
  • Food abundance
  • Photoperiod

Female condition

Females should not be bred unless they have:

  • Excellent body condition
  • Strong calcium reserves
  • Appropriate UVB exposure
  • Reliable hydration

Gravid females

Possible signs include:

  • Abdominal enlargement
  • Increased time near the ground
  • Restlessness
  • Digging

Nesting behaviour

Although arboreal, females descend to the substrate to:

lay eggs.


Nesting substrate

Provide mature females with at least:

20–25 cm (8–10 in)

of suitable substrate.


Nest mixture

A useful mixture includes:

  • Topsoil
  • Sand
  • Coco fibre

Nest moisture

The substrate should be:

slightly moist rather than saturated.

It should hold an excavated tunnel without collapsing.


Clutch size

Species-specific published information is limited.

Small-to-moderate clutches should be expected rather than the very large clutches produced by many larger iguanian lizards.

A cautious practical expectation is approximately:

4–10 eggs.

Individual clutches may fall outside this range.


Egg handling

If eggs are removed for artificial incubation:

  • Handle gently
  • Avoid rotation
  • Maintain original orientation
  • Prevent dehydration

Incubation medium

Suitable media include:

  • Vermiculite
  • Perlite

maintained:

moist but not saturated.


Incubation temperature

Until more species-specific captive data are available, a conservative working range is approximately:

24–27°C (75–81°F).


Avoid excessive incubation temperatures

Do not attempt to accelerate development with high incubation temperatures.


Incubation duration

A cautious expectation is approximately:

70–110 days,

depending on:

  • Temperature
  • Moisture
  • Individual clutch

Because species-specific data are limited, breeders should carefully record actual results rather than treating this as an absolute range.


Hatchlings

Hatchlings should be raised separately from adults.


Hatchling enclosure

Provide a small but structurally complex arboreal enclosure with:

  • Fine branches
  • Cork
  • Dense foliage
  • UVB
  • Bright lighting
  • Misting
  • Excellent ventilation

Initial enclosure size

Approximately:

45 × 45 × 60 cm (18 × 18 × 24 in)

can be used initially for a single young animal.

Upgrade as growth demands.


Hatchling temperature

Maintain daytime ambient temperatures around:

23–26°C (73–79°F).


Hatchling warm area

Provide approximately:

27–29°C (81–84°F).


Hatchling cool area

Maintain approximately:

21–23°C (70–73°F).


Hatchling night temperature

Allow temperatures to fall toward:

19–21°C (66–70°F).


Hatchling UVB

Provide approximately:

UVI 1.5–2.5

at exposed upper perches.


Hatchling humidity

Maintain approximately:

70–85%

with regular fluctuations and excellent ventilation.


Hatchling diet

Offer tiny prey including:

  • Pinhead crickets
  • Tiny roach nymphs
  • Flightless fruit flies
  • Small black soldier fly larvae
  • Other tiny captive-produced arthropods

Hatchling feeding

Feed:

daily.


Hatchling hydration

Mist foliage regularly so hatchlings can drink:

small droplets.


Hatchling supplementation

Provide:

  • Gut-loaded prey
  • Calcium
  • Appropriate multivitamin
  • Correct UVB

Quarantine

All newly acquired animals should undergo quarantine.

At least:

90 days

is a sensible minimum.


Quarantine still requires cover

Do not quarantine this species in a completely bare enclosure.

Provide:

  • Sterilisable branches
  • Artificial foliage
  • Hides
  • Visual barriers

Wild-caught animals

Wild-origin Corytophanes may be particularly challenging.

Potential problems include:

  • Dehydration
  • Parasites
  • Poor body condition
  • Feeding refusal
  • Chronic stress

Veterinary assessment

A newly acquired wild-origin animal should ideally receive:

  • Physical examination
  • Weight assessment
  • Faecal parasite testing

Captive-bred preference

Documented:

captive-bred animals are strongly preferred.


Common health concerns

Potential problems include:

  • Chronic stress
  • Dehydration
  • Parasites
  • Metabolic bone disease
  • Respiratory disease
  • Skin infections
  • Burns
  • Hyperthermia
  • Rostral trauma
  • Retained shed
  • Reproductive complications

Chronic stress

Signs may include:

  • Persistent hiding
  • Feeding refusal
  • Dark colouration
  • Escape behaviour
  • Weight loss

Stress reduction

Provide:

  • Dense cover
  • Quiet surroundings
  • Minimal handling
  • Correct temperatures
  • Appropriate enclosure size

Dehydration

Possible signs include:

  • Sunken eyes
  • Weakness
  • Reduced feeding
  • Weight loss

Preventing dehydration

Provide:

  • Regular misting
  • Drinking droplets
  • Fresh water
  • Correct humidity

Metabolic bone disease

Possible signs include:

  • Weakness
  • Tremors
  • Soft jaw
  • Limb deformity
  • Fractures

Preventing MBD

Provide:

  • Appropriate UVB
  • Correct calcium supplementation
  • Nutritious gut-loaded prey
  • Correct temperatures

Respiratory disease

Risk increases with:

  • Stagnant air
  • Persistently wet surfaces
  • Inappropriate temperatures
  • Poor hygiene

Respiratory warning signs

Watch for:

  • Wheezing
  • Clicking
  • Nasal discharge
  • Excess mucus
  • Increased breathing effort

Skin disease

Persistently wet conditions can encourage:

  • Bacterial dermatitis
  • Fungal disease

Burns

Prevent access to:

  • Exposed bulbs
  • Hot fittings
  • Heating elements

Hyperthermia

This species should never be trapped in an enclosure maintained entirely at:

30°C+ (86°F+).

Cool shaded areas are essential.


Rostral trauma

A stressed animal may repeatedly rub against:

  • Glass
  • Mesh
  • Doors

Preventing rostral trauma

Use:

  • Dense planting
  • Visual barriers
  • Quiet enclosure placement
  • Adequate space

Retained shed

Inspect:

  • Toes
  • Tail tip
  • Around the casque

Reproductive complications

Females may experience:

  • Calcium depletion
  • Egg retention
  • Dystocia

Possible dystocia

Seek veterinary attention for:

  • Repeated unsuccessful digging
  • Persistent straining
  • Severe weakness
  • Lethargy
  • Continued abdominal enlargement

Veterinary red flags

Consult a suitably experienced reptile veterinarian for:

  • Persistent anorexia
  • Significant weight loss
  • Severe dehydration
  • Tremors
  • Weakness
  • Abnormal breathing
  • Serious skin lesions
  • Prolapse
  • Suspected egg retention

Cleaning

Spot-clean:

  • Faeces
  • Shed skin
  • Dead insects
  • Spoiled organic material

promptly.


Water maintenance

Clean water containers:

daily.


Branch maintenance

Inspect branches regularly for:

  • Mould
  • Rot
  • Faecal contamination

Substrate maintenance

Remove heavily contaminated substrate as necessary.


Bioactive systems

Even mature bioactive systems require:

  • Monitoring
  • Spot cleaning
  • Plant maintenance
  • Drainage checks

Seasonal husbandry

Natural environments experience seasonal changes in:

  • Rainfall
  • Humidity
  • Temperature
  • Food availability

Wet season simulation

During wetter periods:

  • Increase misting modestly
  • Increase prey availability
  • Maintain excellent ventilation

Drier period

During naturally drier periods:

  • Reduce misting somewhat
  • Continue drinking opportunities
  • Prevent dehydration

Outdoor exposure

Temporary outdoor exposure may be beneficial during suitable warm weather.


Natural sunlight

Unfiltered sunlight provides excellent:

  • UVB
  • Visible-spectrum light

Outdoor shade

Always provide:

substantial deep shade.


Ireland and UK

The climate of Ireland and the UK means permanent outdoor housing is:

not appropriate.

Any outdoor exposure must be closely supervised and weather-dependent.


Conservation

Corytophanes hernandezii has a reasonably broad distribution, but forest reptiles can still be affected locally by:

  • Deforestation
  • Habitat fragmentation
  • Agricultural expansion
  • Pesticides
  • Wild collection

CITES

Corytophanes hernandezii is not generally treated as a CITES-listed species.

However, CITES status does not determine all:

national or international legal requirements.


Legal sourcing

Always verify current rules concerning:

  • Acquisition
  • Import
  • Export
  • Transport
  • Sale

Wild collection

Do not assume that a non-CITES species can legally be collected or exported from its country of origin.


Captive breeding

Responsible captive breeding is particularly valuable for species that remain:

uncommon in established captive populations.


Provenance

Retain:

  • Breeder information
  • Purchase receipt
  • Hatch date
  • Parentage
  • Locality information where known
  • Import/export documentation where applicable

Never release captive animals

Never release captive Corytophanes.

Release can:

  • Spread disease
  • Introduce non-native species
  • Violate wildlife legislation

Common husbandry mistakes

Common mistakes include:

  • Treating the species like a Green Iguana
  • Using an enclosure that is too short
  • Providing insufficient branches
  • Leaving large empty spaces without foliage
  • Providing inadequate visual security
  • Keeping temperatures too high
  • Using desert-lizard basking temperatures
  • Providing no cool retreat
  • Keeping nights excessively warm
  • Keeping the enclosure permanently saturated
  • Providing high humidity with poor ventilation
  • Keeping conditions excessively dry
  • Providing no drinking droplets
  • Keeping the enclosure dim
  • Providing inadequate UVB
  • Feeding only one insect species
  • Poor gut loading
  • Inadequate calcium supplementation
  • Excessive handling
  • Leaving large numbers of crickets overnight
  • Permanent pair housing without monitoring
  • Providing females with inadequate nesting substrate
  • Failing to quarantine
  • Buying stressed wild-caught animals when captive-bred animals are available

Responsible ownership

Before obtaining Hernández’s Casque-Headed Lizard, ensure you can provide:

  • Legally documented provenance
  • At least approximately 90 × 60 × 120 cm (3 × 2 × 4 ft) adult housing
  • Preferably 120 × 60 × 150 cm (4 × 2 × 5 ft) or larger
  • Dense vertical and diagonal branches
  • Extensive foliage
  • Strong visual security
  • Tropical soil substrate
  • Good drainage
  • Excellent ventilation
  • Day temperatures around 23–27°C (73–81°F)
  • Gentle basking temperatures around 29–32°C (84–90°F)
  • Cooler areas around 21–24°C (70–75°F)
  • Nighttime cooling
  • Humidity around 65–85%
  • Regular misting
  • Reliable drinking opportunities
  • Bright visible lighting
  • Appropriate UVB
  • UVI approximately 2–3 at exposed basking perches
  • A varied live-invertebrate diet
  • Correct gut loading
  • Appropriate calcium and vitamin supplementation
  • Minimal handling
  • Individual housing where appropriate
  • Deep nesting substrate for mature females
  • Quarantine facilities
  • Access to specialist reptile veterinary care

Summary

Hernández’s Casque-Headed Lizard (Corytophanes hernandezii) is a cryptic arboreal predator from the tropical forests of Mexico and northern Central America.

It is not a high-temperature desert lizard and should instead be provided with a:

cooler, humid, heavily vegetated forest environment.

For one adult, provide at least approximately:

90 × 60 × 120 cm (3 × 2 × 4 ft),

with:

120 × 60 × 150 cm (4 × 2 × 5 ft)

or larger preferred.

Fill the enclosure with:

  • Vertical trunks
  • Diagonal branches
  • Vines
  • Dense foliage
  • Visual barriers

Maintain daytime ambient temperatures around:

23–27°C (73–81°F)

with a gentle basking area around:

29–32°C (84–90°F).

Provide cooler areas around:

21–24°C (70–75°F)

and nighttime temperatures around:

18–22°C (64–72°F).

Maintain humidity around:

65–85%

with higher peaks after misting and overnight, while ensuring:

excellent ventilation and regular surface drying.

Provide appropriate UVB with approximately:

UVI 2–3

at the principal exposed basking perch.

Feed a varied insect diet including:

  • Crickets
  • Locusts
  • Roaches
  • Black soldier fly larvae
  • Silkworms
  • Other suitable arthropods

with appropriate gut loading and supplementation.

The species is:

egg-laying.

Captive reproductive information remains relatively limited, making careful record keeping especially important for breeders.

Corytophanes hernandezii should primarily be regarded as a:

low-disturbance specialist display species.

With correct temperatures, high but fluctuating humidity, dense vegetation, excellent ventilation, suitable UVB, appropriate hydration and a varied live-invertebrate diet, it can be a fascinating species for experienced keepers interested in unusual Central American forest lizards.


IMPORTANT INFORMATION:

This care sheet provides general husbandry guidance and does not replace species-specific research or veterinary advice. Individual requirements may vary.

Always check current legislation governing the acquisition, collection, import, transport, keeping, breeding or sale of reptiles in your jurisdiction.

If you have concerns about an animal’s health or care, consult a suitably experienced exotic or reptile veterinarian.

Information correct at the date of publication.

reptilecommunity.com | Revised: August 2026