Reptilia · Squamata
Lacerta mediaLantz & Cyrén, 1920
Medium Lizard
Photograph by Tigran Tadevosyan, CC BY, via iNaturalist
A day-active, meat-eating lizard from the Saharo-Sindian region, reaching 160 mm snout to vent.
Also called Three-lined Lizard.
Reptilia › Squamata › Lacertidae › Lacerta
- Grows to
- 160mm
- greatest recorded
- Eats
- Carnivorous
- Active
- Diurnal
- Lives up to
- 10.6years
Longer than 96% of all species in Lacertidae anyone has measured.
The bar is the rank itself: its length is the share of the family this animal exceeds. The chart below is the family’s real spread, on a logarithmic scale because body length here runs from 35 to 444 mm. The solid rule is this animal. Every bar is a count of real species, and nothing on this figure is estimated.
What is known
45 sourced facts, each taken from a named scientific dataset. How to read these.
Cited from a dataset unless a row is marked otherwise.
Standing in the world
- Still living
- Extant
- Conservation status
- Least Concern
- Status assessed · the year the Red List last looked
- 2008
- Population trend
- Decreasing
The animal itself
- Limbs
- Four legs
- Venomous
- No
- Fangs
- None
- Longest recorded life
- 10.6years
- Body temperature when active · measured in the wild
- 26.1°C79 °F
- Body temp in the wild · mean, when active
- 26.1°C
TAUM museum records: 10.58
mean body temperature of active individuals in nature
body temperature of active animals in nature
Size
- Length snout to vent · greatest recorded
- 160mm6.25 in
- Length snout to vent · adult female mean
- 113.7mm4.5 in
- Largest female · snout to vent
- 113.7mm4.5 in
- Hatchling length · snout to vent
- 32mm1.25 in
- Largest juvenile · snout to vent
- 32mm1.25 in
- Body mass · greatestcomputed
- 91.49g3.2 oz
- Body mass · adult female, meanmeasured
- 20.6g0.73 oz
- Body mass at hatchingmeasured
- 0.84g0.03 oz
max 160 mm SVL (Feldman et al. 2016)
snout-vent length; the source column mixes this with straight carapace length
computed from length by a family-level allometric equation, not weighed
How it lives
- Diet
- Carnivorous
- How it hunts
- Active foraging
- Active
- Diurnal
- Where it lives
- Arboreal, saxicolous, terrestrial
- Habitat
- Forest, Grassland, Rocky, Shrubland
- Biome
- Temperate Broadleaf & Mixed Forests
- Active season · months of the year
- 6–10months
- Region
- Saharo-Sindian
- Mainland or island
- Mainland
- Elevation · above sea level
- 200–2700m
- Range size
- 927,497km²
- Density
- 7.5–62.2per hectare
Arthropods and lizards, "beetles, locusts, butterflies, caterpillars, molluscs, spiders, and woodlice. Occasionally it feeds on youns lizards, mulberries, and grapes" (Szczerbak 2003, see also Dunayev and Orlova 2023), Archnids and insects (Kamali 2020)
Loos et al. 2011
e.g., Talbi 2007, Shai Meiri pers obs., Kamali 2020
Arboreal and Terrestrial and saxicolous / arboreal and terrestrial (Talbi 2007, Werner 2016)/terrestrial & Saxicolous (pers. obs.)
840-2250 (Mazanaeva and Askenderov 2016), 600-2000 (Kamali 2020), max 2600 (v)
Breeding
- Reproduction
- Oviparous
- Sex decided by
- Genes, ZW/ZZ
- Average clutch
- 11.2eggs
- Eggs or young per clutch
- 1–18eggs
- Mean clutch
- 10–12.4eggs
- Clutches in a year
- 2per year
- Clutches a year
- 2per year
- First breeds at
- 16–24months
5-10 (Bar and Haimovitch 2012), 9-18 (Szczerbak 2003, as trilineata), approximately 10 (Werner 2016), 2-15, mean 10 (TAU experimental zoo data), 9-18 (Dunayev and Orlova 2023)
Naming and history
- Suborder
- Sauria
- Infraorder
- Laterata
- Subspecies
- Lacerta media ciliciensis SCHMIDTLER 1975 Lacerta media isaurica SCHMIDTLER 1975 Lacerta media israelica PETERS 1964 Lacerta media media LANTZ & CYRÉN 1920 Lacerta media wolterstorffi MERTENS 1922
- Described by
- Lantz & Cyrén
- Moved to another genus · since it was first described
- No
- Described in
- 1920
- Type locality
- Georgia
Keeping one
2 ft 1 in × 2 ft 1 in × 2 ft 1 in(64 × 64 × 64 cm)
Minimum length × width × height, for one animal. Bigger is always better.
The standard sizes ground species at 4 × 4 × 2.5 and climbing species at 4 × 2.5 × 4 times snout-vent length.
Recorded both on the ground and climbing, so this is the larger of the two rules in every dimension.
Lives on rock, so stable hard surfaces and basking ledges suit it.
Mindestanforderungen an die Haltung von Reptilien (Sachverständigengutachten), German Federal Ministry for Nutrition, Agriculture and Forestry, Animal Welfare Division, 10 January 1997. The standard states these floor areas are recommendations rather than binding limits.
From this animal’s own snout-vent length of 6.25 in (160 mm), at 4 × 4 × 4 times it, following the German federal welfare standard — how this is worked out.
Active animals measured in the wild averaged 79 °F (26.1 °C).
Mean body temperature of active individuals measured in nature. A measurement of the animal, not a setting for a thermostat.
Feeding
A prey item should be no wider than the space between the animal's eyes.
Widely used across reptile husbandry references. The stated reason is that the gap approximates the width of the throat, so wider prey is associated with impaction. This is established practice, not a measurement.
11kJ per day
Worked out for an animal of 91 g, the heaviest recorded for Medium Lizard — so it is the top of the range, not a figure for a particular animal. Weigh yours and the number will be lower.
An upper estimate, not a feeding target, and not veterinary advice. The equation covers only what an animal burns staying alive, so a growing, gravid or recovering animal needs more — and it was measured on wild animals, which move far more than one in an enclosure. Body condition and a vet who knows the species are what a feeding decision should rest on. Where this comes from.
What nobody knows
These are not gaps in our research. No scientific dataset records them for this species — and saying so is information you cannot get from a reference that simply leaves a field out.
- — Length snout to vent · adult male mean
- — Length snout to vent · adult mean
- — Length nose to tail · greatest recorded
- — Female length · mean, nose to tail
- — Length nose to tail · adult male mean
- — Length nose to tail · adult mean
- — Largest male · snout to vent
- — Largest female · shell length
- — Largest male · shell length
- — Hatchling length · nose to tail
- — Largest juvenile · shell length
- — Egg length
- — Egg width
- — Body mass · a typical adult
- — Preferred body temperature · chosen in a laboratory gradient
- — Eats arthropods
- — Eats vertebrates
- — Eats plant matter
- — How the young develop
- — Gestation or incubation
- — Hatchling length · smallest recorded
- — Hatchling length · largest recorded
- — Age at first breeding · female
- — Mature from · youngest recorded
- — Mature by · oldest recorded
- — Size at maturity · smallest recorded
- — Size at maturity · largest recorded
- — Colour on the back
- — Pattern on the back
- — Pupil
- — Red List criteria
- — Home range · largest recorded
- — Active in
Others in Lacertidae
Take this data
Everything on this page is available as data under CC BY 4.0 — use it freely, credit it, no permission needed.
This species as JSON · the whole dataset
Cite this page
The Reptile & Amphibian Encyclopedia (2026). Lacerta media. Retrieved 2026-09-08, from https://www.allanglescreatures.com/species/lacerta-media
@misc{lacerta_media_2026,
title = {Lacerta media},
author = {{The Reptile & Amphibian Encyclopedia}},
year = {2026},
url = {https://www.allanglescreatures.com/species/lacerta-media}
}Sources
- Meiri, S. (2024). SquamBase — a database of squamate (Reptilia: Squamata) traits. Global Ecology and Biogeography. Public domain (CC0).
- Oskyrko, O. et al. (2024). ReptTraits: a comprehensive dataset of ecological traits in reptiles. Scientific Data. Used under CC BY 4.0.
- Catalogue of Life (dataset 3LR), used under CC BY.