Hyla femoralis
Description
Pinewoods tree frogs are found in pine/mixed pine forests in southern Mississippi. Powell et al. includes a small population in the northern part of the state as well. They’re small tree frogs that variably gray, green, tan, or rich brown. Inner thighs are contrasting distinct yellow spots on a non-yellow background. Males’ calls are often described as an “idling diesel engine” or “machine gun”.
Identifying Traits
- Distinct yellow spots on non-yellow background (see below pictures; separates from Cope’s gray tree frog)

Habitat
Pine flatwoods and savannas, mixed pine-oak forests near bogs or ponds (Powell et al., 2016)
Behavior
Listen for a continuous “idling diesel engine” or “machine gun” call near piney bodies of water from the males in breeding season.
Diet
Various invertebrates