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Yellow-Bordered Isopod (Flavomarginatus)
Porcellio flavomarginatus
The Greek Yellow-Bordered Isopod (Porcellio flavomarginatus). One of the rarest and most unmistakable Mediterranean species (1 inch). It has a highly rough, intense ash-colored carapace with expanded lateral 'skirts' of a bright mustard yellow. Like the Greek werneri, it lives in an arid hell and needs constant airflow to survive. Extremely static, territorial and prone to mass collapse if subjected to stagnant humidity.
Class:Malacostraca
Order:Isopoda
Family:Porcellionidae
Genus:Porcellio
Species:Porcellio flavomarginatus
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Environment
Terrestrial
Humidity
30 - 50 %
Day temperature
20 - 26 °C
Night temperature
18 - 22 °C
UVB
None
Species description
Geographical Origin and Habitat: Rocky coasts exposed to salty wind, dry thorny scrub and dry ruins of the sun-drenched Greek islands (Endemic).
Taxonomy and Genetics: Family Porcellionidae. It shares the extreme ecological niche with the Werneri (the pancake), but shows off an opposite armor: instead of being smooth like a coin, it is very rough and granular ('Scabrous'). This helps them camouflage perfectly on porous volcanic or granitic rocks.
Behavior and Habits: Motionless Greek rocks. Flavomarginatus are lazy boulders. They literally stay glued under the stones for whole days without moving a millimeter. They do not like to aggregate: if the box is small, they rudely push each other away with their snout. They are slow to grow and slow to reproduce, pregnant females are hyper-sensitive to environmental stress.
Morphology: (1 inch / 2.5 cm). Very squashed to the ground, but with a rough armor full of tubercles. The visual contrast is dazzling: the center of the back is asphalt gray studded with scales, while the entire epimeron ('the outer skirt') is painted a clear lemon yellow or pastel mustard (Flavus = yellow, Marginatus = bordered). You look like a poisonous lichen.
Care, breeding and tankmates
Terrarium Setup: Guidance about terrarium setup for Porcellio flavomarginatus must rely exclusively on the parameters and sources listed on this record.
Lighting and Heating: Guidance about lighting and heating for Porcellio flavomarginatus must rely exclusively on the parameters and sources listed on this record.
Humidity and Hydration: Guidance about humidity and hydration for Porcellio flavomarginatus must rely exclusively on the parameters and sources listed on this record.
Feeding and Supplementation: Guidance about feeding and supplementation for Porcellio flavomarginatus must rely exclusively on the parameters and sources listed on this record.
Compatibility and Coexistence: Guidance about compatibility and coexistence for Porcellio flavomarginatus must rely exclusively on the parameters and sources listed on this record.
Health and Common Diseases: Guidance about health and common diseases for Porcellio flavomarginatus must rely exclusively on the parameters and sources listed on this record.
Geographic Origin and Distribution
Rocky coasts exposed to salty wind, dry thorny scrub and dry ruins of the sun-drenched Greek islands (Endemic).
Origin
Europe, Mediterranean, and West Asia
Terrestrial invertebrate profile
- Diet
- No verified data available
- Life expectancy
- No verified data available
- Adult size
- 2 cm
- Lifestyle/Microhabitat
- No verified data available
- Activity cycle
- No verified data available
- Sociality
- No verified data available
- Reproduction
- No verified data available
- Venom level
- No verified data available
- Handling tolerance
- No verified data available
- Brumation
- No verified data available
- Molting
- No verified data available
The catalog's scalar value is 2 cm. The TC Insects — Porcellio flavomarginatus source reports a maximum adult measurement of 2 cm for this species, recorded as body length. The taxonomic record consulted is Porcellio flavomarginatus. These figures are not interchangeable: the first is the profile's editorial reference, whereas the second is a published maximum under a specific measurement convention; differences among sources can reflect sex, population, life stage and measuring method.
Image gallery
Licensed images linked to the species or, when marked, to the closest representative taxon.
Related species
Recommendations grouped by close relatives, companion choices, and similar care.
