The small Southeast Asian ruteline genus Glenopopillia Lin, 1980 is revised. We describe four new species: Glenopopillia albopilosa Zorn & Lu sp. nov. from Vietnam, Glenopopillia forceps Zorn & Lu sp. nov. from India, Glenopopillia mengi Lu & Zorn sp. nov. from China and Laos, and Glenopopillia skalei Zorn & Lu sp. nov. from Vietnam; and one new subspecies: Glenopopillia rufipennis nigropicta Zorn & Lu subsp. nov. from Laos; propose two new combinations: Glenopopillia fossulata (Benderitter, 1929) comb. nov. (from Strigoderma fossulata Benderitter, 1929) and Glenopopillia klossi (Ohaus, 1926) comb. nov. (from Spilota klossi Ohaus, 1926), bringing the total number of species group taxa in this genus to ten. We characterize the genus, provide a key to the species, describe and diagnose each species group taxon, and compile a distribution map. A lectotype for Spilota klossi Ohaus, 1926 is designated.