Underwood's bonneted bat (Eumops underwoodi ) is a species of bat in the family Molossidae found in Belize, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua and the southwestern United States.
Underwood's bonneted bat is sandy brown in color. It is a large bat with a wingspan of 20-22 inches, making it the second-largest bat found within the US, after the greater mastiff bat. Its long, narrow wings and the bones and muscles in its shoulder suggest this bat can fly very swiftly, and E. underwoodi possibly flies all through the night. Like many other species in the genus Eumops, it has a free-hanging tail that sticks far out of its tail membrane.
It is found in Belize, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua and the southwestern United States.
This bat's winter habits are poorly known. In northern parts of its range, it may migrate south for winter.
E. underwoodi is known to eat grasshoppers, leafhoppers, moths and beetles.
One pup is born in June or July.
