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"Scores of winged creatures are approaching the Hive complex. The larger ones are dropping organic missiles that burst on impact, and they seem to screech as they swoop down. The sound is becoming louder and louder. The screaming, Emperor preserve us, the screaming!"
— Vox recording recovered from Hive Cresson on Castobel
Harpy over sea

A group of Harpies flying over the devastated land

A Harpy is a flying bioform of Tyranid. Larger and more powerful than their closely-related bioform the Gargoyle, Harpies are roughly comparable to an aerial Trygon. Harpies have a sinuous, snakelike body, with a broad head covered in organic armor. A pair of very large, leathery wings give them flight, and enable them to out-manoeuvre many aircraft.

Magos Biologis of the Adeptus Mechanicus have argued whether Harpies and Trygons are closely related bio-forms or separate genuses in their own right. However, few comparative studies have been made, and to date, phylogenetic categorization remains highly speculative. Lending weight to the arguments of those taxonomists who classify the two life forms as distinct is the fact that, unlike the sturdy, heavily armoured carapace of the Trygon, the Harpy’s frame is relatively fragile (though still quite resilient by human standards). The Harpy, like many avian and other airborne fauna catalogued by Codiciers throughout the Imperium, is hollow-bodied and thus unable to survive injuries that might not even faze other Tyranid creatures of similar size.

Role Edit

Harpies typically appear in the early phases of a Tyranid invasion alongside Gargoyles and other flying organisms of the Tyranid host. Perhaps owing to their lightly armoured frames, Harpies favour strafing, hit-and run attacks, rather than sustained assaults. Large cysts on the underside of the Harpy’s abdomen produce clusters of spore mines, which the Harpy drops on its foes to deadly effect. The Harpy’s arms boast a number of bio-weapons, such as Scything Talons and often a Stranglethorn or Heavy Venom Cannon. Survivors of attacks by Hive Fleet Jormungandr reported other bio-variants as well, though these accounts remain unconfirmed. In addition to this formidable arsenal, the Harpy can also stun and, in some cases, injure its opponents with the high-pitched shriek that gives this creature its name.


Harpies are monstrous bioforms that fly with a deftness and agility unattainable by even the most sophisticated fighter-craft. As they soar overhead, they rain clusters of living bombs onto prey worlds whilst their forearms, which are melded with large bio-weapons, spit death as they fly. Harpies typically appear in the early stages of a Tyranid attack, working in concert with Gargoyles to drive prey creatures out into the open. However, though the two species share a similar goal, they are physically very different. Where the Gargoyle is very much akin to a winged Termagant, the Harpy appears much closer in nature to a Trygon.

As with many of the larger Tyranid bioforms, the Harpy utilises a wide array of weaponry according to the particular tactical needs of the Hive Fleet. In addition to the bloated Spore Mine cysts on their undersides and the bio-weapons fused to their forearms, the ribcages of many Harpies conceal rows of barbed spines. These are typically fired as the Harpy flies over the foe, ripping through infantry formations below. However, the Harpy is most feared for the ear-splitting shriek that it makes as it dives for the kill. Such is the pitch and volume of this piercing noise that it is almost a weapon in itself. It is excruciatingly painful to lesser life forms, such as Orks and humans, and can even prove fatal to creatures with more highly developed senses, such as Eldar or the genetically enhanced Space Marines. Those that survive this cacophonous assault are left dizzied and disoriented, easy prey for the Harpy’s razor-sharp talons.

Perhaps due to its opportunistic nature, the Harpy tends to avoid protracted assaults, instead opting for strafing runs performed at the nadir of one of its swooping dives. This is not to say that the Harpy does not engage in bloody melee, but it rarely engages in such a contest unless the odds of victory are stacked in its favour. Accordingly, the Harpy's favoured quarry is something ill-suited to fighting back -- light enemy vehicles are a particular favourite, as they lack the speed to escape and the capacity to offer any real threat to the Harpy at short range.



  • Codex: Tyranids (6th Edition) (Digital Edition), pp. 149, 238
  • Codex: Tyranids (5th Edition), pg. 43
  • Codex: Tyranids (3rd Edition), pg. 39
  • Deathwatch: The Jericho Reach (RPG), pg. 174


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