https://peckhamia.com/peckhamia/PECKHAMIA_180.1.pdf Species within Hypoblemum were previously undescribed, or there was a lot of uncertainty or misidentification. Most commonly, they were bunched into H. albovittatum or H.villosum. The link above provides a highly in-depth report with plenty of images of individuals within Hypoblemum which are now their own distinct species! This individual is a female Hypoblemum griseum: there are lots of images and descriptions for comparison against from page 26 of the PDF link at the top of this comment.