Hi Andrew, For future reference, this may be a good source to check with if you're uncertain as to whether a spider you find is from Hypoblemum: https://peckhamia.com/peckhamia/PECKHAMIA_180.1.pdf It provides a description and lots of images of both Hypoblemum griseum and Hypoblemum scutulatum. Your individual is most likely an immature female All the best, Yumi