We have isolated several copies of the transposable element PAT of Panagrellus redivivus and sequenced one full length, presumably autonomous, 5514 bp entity. The terminal sequences are found repeated inside the element, probably representing the homologous of the long terminal repeats in common retroid elements. Two major open reading frames are present with features typical of GAG and Pol. Both the structural features and open reading frame characteristics assign PAT to the retroid family of transposable elements, and more precisely to the gypsy class of retroids when putative functional domains of Pol are compared to published sequences.