USFWS proposes to designate critical habitat for the Sacramento Mountains checkerspot butterfly (Euphydryas anicia cloudcrofti), a butterfly from New Mexico, under the ESA. In total, approximately 1,636.9 acres (662.4 hectares) in Otero County, New Mexico, fall within the boundaries of the proposed critical habitat designation. They also announced the availability of a draft economic analysis of the proposed designation of critical habitat for the Sacramento Mountains checkerspot butterfly. They will accept comments received or postmarked on or before 10 October 2023. POC is Shawn Sartorius, Field Supervisor, USFWS, New Mexico Ecological Services Field Office, 2105 Osuna NE, Albuquerque, NM 87113; tele: 505–346–2525. (Federal Register 10 August 2023 [Proposed Rule] Pages 54263-54288)