In Greek mythology, the Ciconian Maenads are the Thracian women of the Cicones (Ciconians) who, maddened by Dionysus, tore Orpheus apart after he shunned their love following Eurydice's death. Apollodorus states the Maenads' sparagmos; Ovid's Metamorphoses sets the scene among Ciconian matrons whose din finally drowns the bard's protecting song.
Adapted from Wikipedia, "Cicones" · CC BY-SA 4.0
I.Killers of Orpheus
Apollodorus (Bibliotheca 1.3.2) says simply that the Maenads tore Orpheus in pieces. Ovid (Metamorphoses 11.1–66) names Ciconian matrons on a hill who watch the bard reject every woman since Eurydice; stones fall harmless until pipes, horns, and tambourines drown his voice, then the sparagmos follows. Dionysus later roots the Edonian women into the earth as punishment.
The Cicones themselves are also Homeric Trojan allies and the people Odysseus sacks at Ismarus (Odyssey 9) — wider tribal colour behind this collective node.
II.Collective node
The atlas id ciconian-maenads is the collective Thracian Bacchantes of the Orpheus death, not a single named woman and not the Homeric male Ciconian captains (Euphemus, Mentes).