Helcystogramma arotraeum is a moth in the family Gelechiidae. It was described by Meyrick in 1894. It is known from Japan, Taiwan, China (Hainan, Jiangxi, Yunnan), Myanmar, Thailand, northeastern India, Sri Lanka, Malaysia, and Indonesia. The wingspan is 11-14 mm. The forewings are pale whitish-ochreous, all veins suffusedly margined with dark fuscous and with a round black dot in the disc at two-fifths, a second nearly beneath it on the fold, and a third in disc at three-fifths. There is a small suffused blackish apical spot. The hindwings are pale grey.