UCR Urban Entomology
UCR Urban Entomology
UCR Urban Entomology
University of California
UCR Urban Entomology

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A Psychoda sp. moth fly

fused mothfly-1

A Psychoda sp. moth fly found in my house (bathroom) in Riverside, CA (July 2020). This insect belongs to Family Psychodidae. This group of insects has other common names such as drain fly and sewer fly. Moth-like, hairy bodies and wings gave them a "moth fly" common name. The other common names, drain fly and sewer fly, give some hints on their larval feeding habits and habitat. According to Ebeling (1975), "moth flies may develop in the muck or gelatinous material that accumulates in sewage disposal beds, septic tanks, compost, or dirty garbage containers, or they may emerge from the drains of sinks or bathtubs, from treeholes, rain barrels, or from very moist organic solids and bird nests that have accumulations of moist excreta". Adult adults are commonly seen near to their larval habitats, such as the walls of bathrooms, building exterior walls near moist soil or compost, and other similar areas. 

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