From Destinypedia, the Destiny wiki
Species:
Hive
Type:
Wizard
Sect:
Hidden Swarm
Gender:
Female
Purpose:
Ritual Leaders
Mission:
Chamber of Night
Abilities:
Darkness Blast Solar Shield Poison Cloud Rapid Flight
Siphon Witches are a group of Hive Wizards seen draining the Light from a Shard of the Traveler during the mission Chamber of Night.
A group of Siphon Wizards draining the Light from a Shard of the Traveler