The Puritan Tiger Beetle was listed as a threatened species in 1990. Populations of Puritan Tiger Beetles are limited by the availability of sandy beach habitat along rivers, which tends to happen below large river bends. Some sites where the beetle occurred historically have been lost to bank stabilization around cities and by habitat loss due to flooding behind dams. Currently, they are found at a single cluster of three small sites and the total population in New England is less than 1,000. More than 99% of the New England population is found in Connecticut.

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