Spider beetle Mezium affine
Adult
Size: 3-4mm
Shape: Spider-like
Colour: dark brown or reddish abdomen,yellow head, antennae and legs
Antennae: Long, hairy, no club
Distinguishing features: Yellow head, thorax and legs
Larvae are scavengers
Adults eat: very little
Note: not common in the UK and very similar to Mezium americanum
Size: 3-4mm
Shape: Spider-like
Colour: dark brown or reddish abdomen,yellow head, antennae and legs
Antennae: Long, hairy, no club
Distinguishing features: Yellow head, thorax and legs
Larvae are scavengers
Adults eat: very little
Note: not common in the UK and very similar to Mezium americanum
![](imageresize.php?file=data/usercontent/32ff85f6c3198e0c9c076931d638d8d1156e967fbc43002a6c64a4d48d0dce18.jpg&opts=w800h800e0)
![](imageresize.php?file=data/usercontent/32ff85f6c3198e0c9c076931d638d8d1156e967fbc43002a6c64a4d48d0dce18.jpg&opts=w200h200e0)
![Mezium on trap Mezium on trap](imageresize.php?file=data/usercontent/0479c9a284fa17fe1312bdee1af6d3954cbd04009c3e142552e740b7bdec55c4.jpg&opts=w800h800)
![](imageresize.php?file=data/usercontent/364ad6544605ac80358713ffc58ad9068ac8a17c778c9dc4b36e0fcc0f72194b.jpg&opts=w800h800)
Spider beetle Mezium affine
100%
![](imageresize.php?file=data/usercontent/32ff85f6c3198e0c9c076931d638d8d1156e967fbc43002a6c64a4d48d0dce18.jpg&opts=w200h200)
![Mezium on trap Mezium on trap](imageresize.php?file=data/usercontent/0479c9a284fa17fe1312bdee1af6d3954cbd04009c3e142552e740b7bdec55c4.jpg&opts=w200h200)
![](imageresize.php?file=data/usercontent/364ad6544605ac80358713ffc58ad9068ac8a17c778c9dc4b36e0fcc0f72194b.jpg&opts=w200h200)