All flies go through a complete metamorphosis with four stages—egg, larva, pupa, and adult—but the time it takes a fly species to complete its life cycle varies.

The mushroom phorid fly problem was triggered in 2012 when the U.S. Environmental Protection Agency ruled that an insecticide mushroom growers had used successfully for decades to control the pest ...

USDA photo ARS entomologist David Oi examines phorid fly traps in California to document establishment and spread of the flies.

Many phorid species lay their eggs in living ants. The newly hatched larvae move to the ants’ heads, feed on them and eventually decapitate them.

A new species of phorid fly from Thailand is the smallest fly ever discovered. At just 0.40 millimeters in length, it is 15 times smaller than a house fly and five times smaller than a fruit fly ...

The fly larvae develop inside the ants and kill their host. Dr. Ed LeBrun, a researcher at BFL, developed the new flytraps that allowed him to map the spread of the first species of phorid fly ...

And I recognized them as being phorid flies, it's a group of flies that some are parasites, some are kind of scavengers, and I knew the phorid expert was Brian Brown at the Natural History Museum ...

For these homeowners and many like them in various areas of southern Chester County, the tiny phorid flies that come in warm weather and swarm in their houses are making life almost unbearable.

The flies are all members of the phorid family, and were captured in 30 insect traps set up in the backyards of homeowners around the city.

A phorid fly (left), Pseudacteon cultellatus, about 1 mm long, and a red imported fire ant (right), Solenopsis invicta, about 3 mm long. The fly can lay eggs inside the ant’s head.

First discovered on the San Francisco campus last fall by biology Professor John Hafernik, the phorid fly lays its eggs in the abdomens of bees. When the larvae hatch, they devour the bee from ...

The fly larvae develop inside the ants and kill their host. Dr. Ed LeBrun, a researcher at BFL, developed the new flytraps that allowed him to map the spread of the first species of phorid fly ...