How big can the spruce fir moss spider?

The spruce fir moss spider (Microhexura montivaga) is a small spider, typically measuring about 3 to 5 millimeters in body length. It is known for its distinctive appearance, with a compact body and a coloration that helps it blend into its mossy habitat. Despite its small size, it plays a crucial role in its ecosystem by preying on small insects and contributing to the biodiversity of its mountainous forest environment.