Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
insecto, āvi, ātum, 1, v. a., a rare form for insector, to pursue (ante- and postclass.): nos insectabit lapidibus, Plaut. Capt. 3, 4, 61.
Hence, pass.: insectatus, pursued, Auct. B. Afr. 71, 4.