Helcystogramma imagitrijunctumm is a moth in the Gelechiidae family. It was described by Li and Zhen in 2011. It is found in Taiwan and China (Guizhou, Jiangxi, Zhejiang). The wingspan is 11-14 mm. The forewings are yellow to greyish-yellow, with scattered greyish-brown scales. The costal margin is dark brown, except for the distal quarter. There is a dark brown fascia from the costal two-thirds to the dorsal two-fifths, as well as black scale tufts at the middle of the cell and at the middle of the fold, two black scale tufts at the end of the cell and a broad dark brown fascia terminally. The hindwings are greyish-white to grey.