tetalu noun English. Large, ca. 5 cm. long and 1 cm. thick, pale green caterpillar. Example sentence: Subanen. Ki tetalu, ginis guled, laak gembagel gupia, palasen melunaw, ma'niin sigbet. English. A tetalu is a kind of caterpillar, a very large variety, green in color, like grass. Generic. uled