This species has not been studied by the present authors.
The genus Adraneothrips currently includes 59 species, all but three of which are from the Americas, mainly from tropical areas with four species listed from California. A. faustus was described on one short-winged male, and studies on this and related species must await more extensive field sampling to gain some understanding of variation within and between species.
Adraneothrips faustus Stannard
Breeding in leaf litter
Feeding on fungal hyphae in leaf litter