Plaguelouse Larva

Plaguelouse Larva.

The Plaguelouse Larva is a bloodlouse companion. It's a reward from each covenant's unique covenant feature:

Path of Ascension — Rewarded for defeating Mad Mortimer on Wisdom difficulty
Abominable Stitching — Purchased from Atticus for 1,000 [Reservoir Anima]. Requires honored with the Stitchmasters, and you must craft Atticus with Abominable Stitching.
Queen's Conservatory — Can drop from Queen's Conservatory Caches given by any quality of [Martial Spirit] that had [Wildseed Root Grain] planted in two adjacent Anima Catalyst Plots. Requires rank 2 of the Queen's Conservatory.
Ember Court — Can drop from tributes that Baroness Vashj gives at the end of the scenario.

Pet Journal

A parasite that latches onto some of the larger beasts of Maldraxxus and drinks until fully-grown, one wonders how the beasts don't manage to notice.