Trogoderma angustum larvae and cast skin

Full grown larva, half grown larva and cast skin

Size:  0.5mm when first hatched to 5mm when fully grown

Shape: Oval, tapering to the back

Colour: Cream with very dark bands of hair

Antennae: Not visible

Distinguishing features: Similar to Anthrenus carpet beetle larvae, but longer and with darker bands and wispy hairs at the back. 
It is difficult to differentiate between Trogoderma, Reesa and Anthrenocerus larvae.

Larvae are pests of: Fur and skin. They will also attack some herbarium specimens. They are uncommon in the UK, but have been found in London, Cambridge and Edinburgh

Trogoderma angustum larvae and cast skin