The Rove beetle (Dalotia coriaria) is a species of soil-dwelling beetles which feeds on fungus gnats, thrips, root aphids and some small mites. The larvae and adults are both aggressive eaters. The larvae are light brown to dark brown in appearance and are more worm-like, while the adults are 3-4 mm long and dark with a slender body and wings. The wings allow them to mobilize from container to container in a grow room and from area to area in an outdoor environment, to attack where pests are prevalent. These wings allow them to establish quickly in their introduced environment as well.

Life Stages:

The complete life cycle of rove beetles is 21 days. Eggs hatch in 3-4 days into larvae, which resemble translucent adults. During their reproductive stage, female rove beetles produce 6 to 8 eggs per day, for 14 days in pupal chambers are constructed out of silk. Each adult and larvae beetle consumes 10-20 prey per day.

Effective Against:

Effective control of fungus gnats and shoreflies. Will also eat soil stages of thrips as well as root aphids, root mealy bugs, moth flies, carrot flies and cabbage root flies.