Philodromidae

 
 

Philodromus is a common genus of running crab spiders. Females are 4 to 8 mm, males are 4 to 6 mm, and legspans are 15 to 20 mm. Eggs occur in summer and Philodromus species overwinter as penultimate instars. Another genus is Apollophanes. It is difficult to identify some of these.

 

Philodromus and others

Philodromidae are the running crab spiders. They either ambush or run after prey. They can be found running along concrete walls on the bridges in Minneapolis, often at night. Philodromus sp. Females are 4 to 8 mm, males are 4 to 6 mm, and legspans are 15 to 20 mm. Eggs occur in summer and Philodromus sp. overwinter as penultimate instars.