Habitat and Substrate: Exposed and shaded areas, on rocks.

Rhode Island Status: Very common.

Pollution Tolerance: Tolerant.

Collection Site(s): Crandall Swamp, Westerly (#4850); Beaver River, Richmond (#4897); Grass Pond, Richmond (#4913); Carolina Wildlife Management Area, Richmond (#4934); Tuckerman Park, South Kingstown (#4961); Matunuck Hills Area, South Kingstown (#4992); Ell Pond, Hopkinton (#5038); Ponagansett Public Fishing Area, Foster (#5057); Casimir Pulaski Memorial Park, Glocester (#5075); Sprague Farm, Glocester (#5087); Lime Rock, Lincoln (#5102); Headwaters of Wood River, West Greenwich (#5132); Big River Wildlife Management Area, West Greenwich (#5152); Snake Den State Park, Johnston (#5186); Lake Wallum, Burrillville (#5204); Buck Hill Wildlife Management Area, Burrillville (#5228); Scituate Reservoir, Scituate (#5247); Pettaquamscutt River, North Kingstown (#5287); Pawtucket River Pine Barrens, Richmond (#5299); Blue Pond, Hopkinton (#5322); Norman Bird Sanctuary, Middletown (#5372); Tiverton Four Corners Cemetery, Tiverton (#5398); Frenchtown Park, East Greenwich (#5424); Lincoln Woods, Lincoln (#5445); Audubon Fort Nature Preserve, North Smithfield (#5460); Black Swamp Area, North Kingstown (#5502); Elm Grove Cemetery at Allenton, North Kingstown (#5514); Powder Mill Ledges Wildlife Refuge, Smithfield (#5532); Kimball Wildlife Sanctuary, Charlestown (#5566); George Parker Woodlands, Coventry (#5581); Oakland Farms, Portsmouth (#5596); Conanicut Island Cemetery, Jamestown (#5611).

Notes: Previously reported in Rhode Island by Bennett (1888) and Flenniken (1968b).