Plaster beetle Adistemia watsoni
Adult beetle
Size: 1-2mm
Shape: Very thin, abdomen notably larger than head and thorax
Colour: Orangey brown
Antennae: Medium with a loose club
Distinguishing features: Large abdomen relative to rest of the body.
Larvae are pests of: mould and mould spores
Damage: Larvae can occasionally damage damp paper
Adults eat: Not known
They are indicators of high local humidity. One or two specimens do not indicate a problem, large numbers indicate that the damp source needs to be investigated.
Size: 1-2mm
Shape: Very thin, abdomen notably larger than head and thorax
Colour: Orangey brown
Antennae: Medium with a loose club
Distinguishing features: Large abdomen relative to rest of the body.
Larvae are pests of: mould and mould spores
Damage: Larvae can occasionally damage damp paper
Adults eat: Not known
They are indicators of high local humidity. One or two specimens do not indicate a problem, large numbers indicate that the damp source needs to be investigated.
![](imageresize.php?file=data/usercontent/6d1ccf5c3f74683d08661d656ceef658ed475fdb73d78b0a3502d12c1982fe51.jpg&opts=w800h800e0)
![](imageresize.php?file=data/usercontent/6d1ccf5c3f74683d08661d656ceef658ed475fdb73d78b0a3502d12c1982fe51.jpg&opts=w200h200e0)
![](imageresize.php?file=data/usercontent/a2f1a0ed0ab7e57f8a45cc1125213c4ef9676e61eb71a9df90ca1f973c9f68c1.jpg&opts=w800h800)
![Adistemia adult Adistemia adult](imageresize.php?file=data/usercontent/5aa11b8a89d951078ded7c3f7dcf80eebd9e93f4ac2c0179ee2b4811776a00ac.jpg&opts=w800h800)
Plaster beetle Adistemia watsoni
100%
![](imageresize.php?file=data/usercontent/6d1ccf5c3f74683d08661d656ceef658ed475fdb73d78b0a3502d12c1982fe51.jpg&opts=w200h200)
![](imageresize.php?file=data/usercontent/a2f1a0ed0ab7e57f8a45cc1125213c4ef9676e61eb71a9df90ca1f973c9f68c1.jpg&opts=w200h200)
![Adistemia adult Adistemia adult](imageresize.php?file=data/usercontent/5aa11b8a89d951078ded7c3f7dcf80eebd9e93f4ac2c0179ee2b4811776a00ac.jpg&opts=w200h200)