Northern Cricket Frog (Acris crepitans)
Order: Anura; Family: Hylidae (Treefrogs); Genus: Acris; Species: A. crepitans.
Species
Northern Cricket Frog (Acris crepitans)
Family
Order: Anura; Family: Hylidae (Treefrogs); Genus: Acris; Species: A. crepitans.
Size
A very small frog, with adults measuring between 0.75 and 1.5 inches (1.9–3.8 cm) in Snout-to-Vent Length (SVL). Females are generally larger than males.
Conservation
IUCN Least Concern overall, but some northern populations have seen significant declines due to habitat loss, pollution, and chytrid fungus.
Description
The Northern Cricket Frog is a master of camouflage, blending perfectly into the mud and gravel of shorelines. Small but mighty, its clicking chorus is a signature sound of American summer wetlands.
Key Features
Granular warty skin, dark triangle between the eyes, dark ragged stripe on the thigh, and a clicking 'pebble' call.
Physical Description
Small, robust frog with a somewhat pointed snout. It has long back legs, large eyes with horizontal pupils, and a visible tympanum. Unlike most treefrogs, its toe pads are very small and it has extensive webbing on the hind feet.
Skin Texture & Coloration
The skin is distinctly granular and 'warty' for a treefrog. Coloration is highly variable, typically grayish-brown with a dark, triangle-shaped mark between the eyes. Often features a bright green, red, or rust-colored stripe down the back.
Distinguishing Features
A dark triangle between the eyes is the primary diagnostic mark. It also possesses a dark, ragged-edged stripe on the back of the thigh and a white line from the eye to the base of the arm.
Habitat
Found near permanent water sources like ponds, lakes, slow-moving streams, and marshes. They prefer open, sunny areas with plenty of shoreline vegetation and muddy or sandy banks.
Geographic Range
Native to the central and eastern United States, ranging from the Rocky Mountains to the Atlantic coast, and from the Gulf of Mexico north into the Great Lakes region.
Behavior
Diurnal and active throughout the day. They are incredible jumpers, capable of leaping several feet to escape predators. They often jump into water and immediately swim back to shore to hide in vegetation.
Diet & Feeding
Primarily insectivorous, eating a wide variety of small terrestrial and aquatic insects, spiders, and other invertebrates. They use an active foraging strategy on the water's edge.
Reproduction
Breeding occurs from late spring through summer. Males call from the water's edge or floating vegetation. Females lay small clusters of eggs attached to aquatic plants; amplexus is axillary.
Vocalizations
The call is a series of sharp 'gick-gick-gick' sounds, resembling two pebbles being clicked together. The tempo starts slowly and increases in speed.
Life Cycle
Eggs hatch in 3–4 days. Tadpoles have a characteristic black-tipped tail and reach metamorphosis in 5–10 weeks. Most individuals live only one or two years in the wild.
Conservation Status
IUCN Least Concern overall, but some northern populations have seen significant declines due to habitat loss, pollution, and chytrid fungus.
Toxicity & Defense
Not toxic to humans. They rely on cryptic coloration and powerful leaping ability to avoid predation. When caught, they may secrete a mild mucus that is unpalatable to some predators.
Ecological Role
Serves as an important mid-level link in the food web, controlling insect populations and serving as a high-protein food source for fish, snakes, and birds.
Similar Species
Blanchard's Cricket Frog (Acris blanchardi) is very similar but occupies a more western range; Southern Cricket Frog (Acris gryllus) has a more pointed snout and a cleaner-edged thigh stripe.
Observation Tips
Look for them along sunlit, muddy shorelines in late spring. Listen for the sound of 'clicking stones' and walk slowly to see them leap before they hit the water.
Handling & Safety
Safe to handle with wet hands to protect their semi-permeable skin. However, they are fragile and jumpy; it is best to observe them without physical contact.
Seasonal Activity
Active from April through October. They hibernate/brumate underwater or in cracks near the water's edge during the winter months.
Cultural Significance
Functions as a vital environmental indicator due to their sensitivity to water pollution. Their calls are often used in nature films to evoke a summer pond atmosphere.
Interesting Facts
Despite being in the treefrog family Hylidae, they are primarily terrestrial and are very poor climbers due to their lack of large toe pads.