Ptinus sexpunctatus is a species of beetles in the genus Ptinus of the family Ptinidae. It is commonly known as the six-spotted spider beetle.
Taxonomy
P. sexpunctatus is one of eleven species of Ptinid in the subgenusGynopterus. The subgenus was first described by Mulsant and Rey in 1868. ==Description==
Description
The species is approximately 4–5 mm in length and is a uniform dark colouration. It has very prominent basal and apical patches of appressed white scale. The grooves on the elytra are very deep. ==Distribution and habitat==
Distribution and habitat
Ptinus sexpunctatus is a Palearctic spider beetle (Ptinidae: Ptininae) found throughout Europe. In 2007 it was first recorded as an invasive species in North America where it may have imported with introductions of Osmia cornuta and Osmia cornifrons. although more cosmopolitan sightings have occurred indoors. The larvae of P. sexpunctatus are commensals in the nests of cavity-nesting solitary bees in the genera Osmia and Megachile. ==References==