# Endangered and Threatened Wildlife and Plants; Threatened Species Status With Section 4(d) Rule for Puerto Rican Harlequin Butterfly and Designation of Critical Habitat
> **US Fish and Wildlife Service** · Final rule. · Published 2022-12-01 · Effective 2023-01-03 · 87 FR 73655
## Document
- **Document number:** 2022-25805
- **Category:** endangered-species
- **Sub-agency:** US Fish and Wildlife Service
- **Federal Register citation:** 87 FR 73655
- **CFR reference:** 50 CFR 17
- **Publication date:** 2022-12-01
- **Effective date:** 2023-01-03
- **Interior docket:** Docket No. FWS-R4-ES-2020-0083
## Abstract

We, the U.S. Fish and Wildlife Service (Service), list the Puerto Rican harlequin butterfly (Atlantea tulita), a species from Puerto Rico, as a threatened species with a rule issued under section 4(d) of the Endangered Species Act of 1973 (Act), as amended. We also designate critical habitat for this species under the Act. In total, approximately 41,266 acres (16,699.8 hectares) in six units in the municipalities of Isabela, Quebradillas, Camuy, Arecibo, Utuado, Florida, Ciales, Maricao, San Germ[aacute]n, Sabana Grande, and Yauco are within the boundaries of the critical habitat designation. This rule extends the Act's protections to the species and its designated critical habitat.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2022/12/01/2022-25805/endangered-and-threatened-wildlife-and-plants-threatened-species-status-with-section-4d-rule-for)
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