Better than Instagram, folks. Scorpions, for some reason, fluoresce when you shine an ultraviolet light on them. Few other insects and arthropods glow like they do, although some flat Polydesmida millipedes do. So whenever Kieran and I want to locate any of the scorpions living in his terrariums, we shine in a UV flashlight at night. They stand out like a neon sign!

These are mostly our local forest scorpions, Uroctonus mordax, though we have one yellowish one, very small, that may be a Vaejovid.

Our largest Uroctonus mordax, about 3 cm long.

Our largest Uroctonus mordax, about 3 cm long.

No matter where they hide in the vegetation, the UV light finds them!

No matter where they hide in the vegetation, the UV light finds them!

Our scorpions hunt by waiting with claws wide for another critter to come along.

Our scorpions hunt by waiting with claws wide for another critter to come along.

Even our smallest scorpion, which could crouch on a dime, is easily spotted.

Even our smallest scorpion, which could crouch on a dime, is easily spotted.

IMG_4483

A tiny Vaejovid scorpion.

A tiny Vaejovid scorpion.

A scorpion in the hand is worth two in a bush!

A scorpion in the hand is worth two in a bush!

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