{"abstract":"We, the U.S. Fish and Wildlife Service (Service), propose to list the Miami blue butterfly (Cyclargus thomasi bethunebakeri) as endangered under the Endangered Species Act of 1973, as amended (Act). An emergency rule listing this subspecies as endangered for 240 days is published concurrently in this issue of the Federal Register. We also propose to list the cassius blue butterfly (Leptotes cassius theonus), ceraunus blue butterfly (Hemiargus ceraunus antibubastus), and nickerbean blue butterfly (Cyclargus ammon) as threatened due to similarity of appearance to the Miami blue, with a special rule pursuant to section 4(d) of the Act. We solicit additional data, information, and comments that may assist us in making a final decision on this proposed action.","action":"Proposed rule; request for public comments.","agencies":[{"raw_name":"DEPARTMENT OF THE INTERIOR","name":"Interior Department","id":253,"url":"https://www.federalregister.gov/agencies/interior-department","json_url":"https://www.federalregister.gov/api/v1/agencies/253","parent_id":null,"slug":"interior-department"},{"raw_name":"Fish and Wildlife Service","name":"Fish and Wildlife Service","id":197,"url":"https://www.federalregister.gov/agencies/fish-and-wildlife-service","json_url":"https://www.federalregister.gov/api/v1/agencies/197","parent_id":253,"slug":"fish-and-wildlife-service"}],"body_html_url":"https://www.federalregister.gov/documents/full_text/html/2011/08/10/2011-19818.html","cfr_references":[{"chapter":null,"citation_url":null,"part":17,"title":50}],"citation":"76 FR 49408","comment_url":null,"comments_close_on":"2011-10-11","correction_of":null,"corrections":[],"dates":"Comments from all interested parties must be received by October 11, 2011. Public hearing requests must be received by September 26, 2011.","disposition_notes":null,"docket_ids":["Docket No. FWS-R4-ES-2011-0043","MO 92210-0-0008"],"dockets":[],"document_number":"2011-19818","effective_on":null,"end_page":49412,"executive_order_notes":null,"executive_order_number":null,"full_text_xml_url":"https://www.federalregister.gov/documents/full_text/xml/2011/08/10/2011-19818.xml","html_url":"https://www.federalregister.gov/documents/2011/08/10/2011-19818/endangered-and-threatened-wildlife-and-plants-proposed-listing-of-the-miami-blue-butterfly-as","images":{},"images_metadata":{},"json_url":"https://www.federalregister.gov/api/v1/documents/2011-19818?publication_date=2011-08-10","mods_url":"https://www.govinfo.gov/metadata/granule/FR-2011-08-10/2011-19818/mods.xml","not_received_for_publication":null,"page_length":5,"page_views":{"count":214,"last_updated":"2026-10-25 04:15:05 -0400"},"pdf_url":"https://www.govinfo.gov/content/pkg/FR-2011-08-10/pdf/2011-19818.pdf","presidential_document_number":null,"proclamation_number":null,"public_inspection_pdf_url":null,"publication_date":"2011-08-10","raw_text_url":"https://www.federalregister.gov/documents/full_text/text/2011/08/10/2011-19818.txt","regulation_id_number_info":{"1018-AX83":{"issue":"201110","html_url":"https://www.federalregister.gov/regulations/1018-AX83/listing-of-the-miami-blue-butterfly-cassius-blue-butterfly-ceraunus-blue-butterfly-and-nickerbean-bl","title":"Listing of the Miami Blue Butterfly, Cassius Blue Butterfly, Ceraunus Blue Butterfly, and Nickerbean Blue Butterfly in the State of Florida","xml_url":"http://www.reginfo.gov/public/do/eAgendaViewRule?pubId=201110&RIN=1018-AX83&operation=OPERATION_EXPORT_XML","priority_category":"Substantive, Nonsignificant"}},"regulation_id_numbers":["1018-AX83"],"regulations_dot_gov_info":{"supporting_documents":[{"title":"References Cited","document_id":"FWS-R4-ES-2011-0043-0053"},{"title":"Requested Peer Review Comments on Docket Number FWS–R4–ES–2011–0043 Robert K. Robbins, Acting Chair, Department of Entomology, Smithsonian Institution","document_id":"FWS-R4-ES-2011-0043-0048"},{"title":"Peer Review by Gordon Pratt","document_id":"FWS-R4-ES-2011-0043-0047"},{"title":"Dr. Paul M. Severns: Peer Review Comments on the Emergency Listing of the Miami blue (Cyclargus thomasibethunebakeri) and three additional morphologically similar, co-occurring commonbutterflies (Leptotes cassius theonus, Hemiargus ceraunus antibubastus, ","document_id":"FWS-R4-ES-2011-0043-0046"},{"title":"Peer Review of Scientific Information for Miami Blue butterfly","document_id":"FWS-R4-ES-2011-0043-0013"},{"title":"Emergency Petition to List Miami Blue Butterfly - Center for Biological Diversity,  January 11, 2011","document_id":"FWS-R4-ES-2011-0043-0008"},{"title":"Petition for Emergency Listing of Miami Blue Butterfly - August 9, 2010","document_id":"FWS-R4-ES-2011-0043-0007"},{"title":"Petition for Emergency Listing of Miami Blue Butterfly - June 15, 2000","document_id":"FWS-R4-ES-2011-0043-0006"},{"title":"Literature Cited for Emergency Rule for  Miami blue butterfly","document_id":"FWS-R4-ES-2011-0043-0004"},{"title":"References Cited for Proposed Rule for Miami blue butterfly","document_id":"FWS-R4-ES-2011-0043-0003"}],"regulatory_plan":{"html_url":"https://www.federalregister.gov/regulations/1018-AX83/listing-of-the-miami-blue-butterfly-cassius-blue-butterfly-ceraunus-blue-butterfly-and-nickerbean-bl","title":"Listing of the Miami Blue Butterfly, Cassius Blue Butterfly, Ceraunus Blue Butterfly, and Nickerbean Blue Butterfly in the State of Florida"},"comments_url":"https://www.regulations.gov/docketBrowser?rpp=50&so=DESC&sb=postedDate&po=0&dct=PS&D=FWS-R4-ES-2011-0043","supporting_documents_count":10,"docket_id":"FWS-R4-ES-2011-0043","regulation_id_number":"1018-AX83","title":"Miami Blue Butterfly, Cassius Blue, Ceraunus Blue, & Nickerbean blue","checked_regulationsdotgov_at":"2011-08-30T08:06:20Z"},"regulations_dot_gov_url":null,"significant":false,"signing_date":null,"start_page":49408,"subtype":null,"title":"Endangered and Threatened Wildlife and Plants; Proposed Listing of the Miami Blue Butterfly as Endangered, and Proposed Listing of the Cassius Blue, Ceraunus Blue, and Nickerbean Blue Butterflies as Threatened Due to Similarity of Appearance to the Miami Blue Butterfly","toc_doc":"Proposed Listing of Miami Blue Butterfly as Endangered, etc.","toc_subject":"Endangered and Threatened Wildlife and Plants:","topics":["Endangered and threatened species","Exports","Imports","Reporting and recordkeeping requirements","Transportation"],"type":"Proposed Rule","volume":76}