The reception of the work of Thucydides in late antique authors constitutes a huge chapter of allusions and reworkings, on methodological, structural, lexical levels and more. A fortiori, certain particularly famous passages by the historian are well suited for a study of their reception, above all where key terms or rare expressions are concentrated. The case of the adjective ἀλγεινός, a poeticism declined twice in the epitaphios of Pericles (2.39 and 2.43) offers interesting material of this kind in the work of Dexippus, the Athenian historian of the third century A.D., and in the romance author Heliodorus. Alongside a secure reference to 2.39 in Dexippus (F28 Martin = F34 Mecella), already identified by Stein, it is possible to identify a further reuse in another fragment, probably extracted from a demegoria (F26b Martin = F32b Mecella). In the light of these examples, it becomes more likely that we can see a reminiscence of Thucydides also in a passage of Heliodorus of Emesa (5.29), already proposed by van Krevelen but omitted from the repertory of citations present in the Aethiopica prepared by Feuillâtre.