top of page
Javanimetrus cyaneus

Javanimetrus cyaneus

£10.00Price
Latin Name: Javanimetrus cyaneus
Common Name: Indo Forest Scorpion
Temperature: 22° - 30° 
Temperament: May pinch if bothered, rarely sting
Humidity: 80%
Adult size: 4-5 inches
Communal: Yes 4/5
Terrestrial/Fossorial: Like to dig, soil needs to hold a burrow
Substrate: Moisture retaining soil
Origin: Rainforests of Southeast Asia
 
Javanimetrus cyaneus, formerly known as Heterometrus cyaneus, is a species of large scorpion belonging to the family Scorpionidae. It is commonly referred to as the Asian Blue Forest Scorpion due to its distinctive bluish coloration and its preference for forested habitats.

  • Appearance

    Size: 

    Javanimetrus cyaneus is a large scorpion, with adults typically reaching lengths of 10 to 15 cm (about 4 to 6 inches).
     

    Coloration:

    This species is known for its striking dark blue to bluish-black body. Under certain lighting, it may display iridescent hues, giving it a metallic sheen. The color can vary slightly based on the age of the scorpion and environmental factors.
     

    Body Structure:

    J. cyaneus presents a large amount of granulation on it's carapace and chela that helps distinguish it from other Heterometrus species.

     

    Pincers (Pedipalps):

    The pincers are large, strong, and slightly granulated, well-adapted for grasping and crushing prey. They are broader and more robust compared to other scorpions, which is typical of the Scorpionidae family.
     

    Tail (Metasoma):

    Javanimetrus cyaneus are able to have a Red or Black telsons as adults, which means when born they can have white or brown telsons, as juvies yellow/brown and adults red/black which makes identifying this scorpion based on telson an exercise in futility.

     

    Carapace and Body Texture:

    The exoskeleton is heavily granulated and glossy, giving it a shiny appearance, especially when viewed under light.

     

  • Habitat

    • Geographic Range: Javanimetrus cyaneus is primarily found in Southeast Asia, with its distribution including:

    • Indonesia (especially Java and surrounding islands)

    • Malaysia

    • Thailand

    • Singapore

     

    Habitat:

    This species is typically found in tropical rainforests and other densely vegetated areas. It prefers humid environments and is often located under logs, rocks, leaf litter, or within soil burrows.
    It thrives in environments with high moisture, which supports its physiology and helps prevent desiccation.

     

  • Behavior

    Venom:

    The venom of Javanimetrus cyaneus is relatively mild and is not considered dangerous to humans. A sting may cause pain, localized swelling, and discomfort similar to a bee sting, but severe reactions are uncommon unless the person is allergic.

     

    Defense:

    When threatened, Javanimetrus cyaneus often assumes a defensive posture, raising its pincers and tail. However, like many heterometrus, it generally prefers to use it's claws rather than stinger.

  • Classification

    Javanimetrus cyaneus was first described by the German arachnologist Carl Ludwig Koch in 1836 under the name Heterometrus cyaneus. In 2020, a systematic revision of Asian forest scorpions led to the reclassification of this species into the genus Javanimetrus.

bottom of page