The Drain Fly (Psychoda spp.) is gray to tan with fuzzy, moth-like wings and typically measures 1/16–⅛ inch. Drain flies (Psychoda spp.), also called moth flies or filter flies, are tiny, fuzzy flies with broad, leaf-shaped wings that give them a moth-like appearance. They are one of the most common indoor f.

The Drain Fly is generally low-risk, but caution is still advised. No medical risk. Not a disease vector. Indicates unsanitary drain conditions. Nuisance pest only.

In Arizona, drain flys are most often encountered in the following situations: Tiny fuzzy moth-like flies on bathroom or kitchen walls and ceilings. Adults resting near drains. Flies emerging from sink or shower drains when disturbed. Persistent small fly population despite cleaning.

The Drain Fly is most active during: Year-round indoors; most common in warm months. Arizona's warm desert climate can extend activity periods compared to other states, so year-round vigilance is recommended in the Phoenix metro and surrounding areas.

Clean drains regularly with a drain brush and enzymatic drain cleaner to remove organic biofilm. Fix leaky pipes and eliminate standing water. Ensure floor drains have water in their traps.

Enzymatic drain cleaners applied weekly to break down the organic biofilm breeding substrate. Drain brushing to physically remove biofilm. Gel drain treatments for persistent infestations. Adult flies can be controlled with residual sprays but source elimination is essential.

Most fly species are drawn to food sources, moisture, organic waste, and breeding sites. For Drain Flys specifically: Tiny fuzzy moth-like flies on bathroom or kitchen walls and ceilings. Adults resting near drains. Flies emerging from sink or shower drains when disturbed. Persistent small fly population despite clea. Eliminating attractants is the first step — Pest Control Bros can identify the source and recommend targeted control.