The Leiodidae (Coleoptera) of Atlantic Canada: new records, faunal composition, and zoogeography Author Majka, Christopher Nova Scotia Museum, Halifax, NS, Canada Author Langor, David Natural Resources Canada, Edmonton, Canada text ZooKeys 2008 2008-09-04 2 2 357 402 journal article 10.3897/zookeys.2.56 719fd3b2-e591-4d51-b512-88e1fdeac745 1313–2970 576397 Anisotoma obsoleta ( Horn, 1880 ) – revalidated name [syn. nov. Anisotoma horni Wheeler, 1979 ] NEW BRUNSWICK : Charlotte Co. : St. George , 5.VII.1963 , R.C. Clarke , window trap , (1, CFNL ) ; Kent Co.: Kouchibouguac National Park , 16.IX.1977 , A. Smetana , (1, CNC ) ; Kouchibouguac National Park , 7.VI.1977 , J.R. Vockeroth, (1, CNC ). NEWFOUNDLAND: Baie Verte , 7.IX.1988 , P. Dixon, malaise trap , (1, CFNL ). NOVA SCOTIA : One hundred and sixty-five specimens from Colchester , Guysborough , Halifax , Inverness , Queens , Victoria , and Yarmouth counties were examined. The earliest record is from 1970 ( Colchester Co. : Glenholm, 3.VI.1970 , P. Doleman , (1, NSMC )) . Anisotoma obsoleta is newly recorded from Newfoundland and Nova Scotia ( Fig. 8 ). It was listed as occurring in New Brunswick by Peck (1991) . Adults have been found between April and December in stumps and forest litter. Slime mold hosts include Stemonitis axifera , S. fusca , S. splendens , Fuligo septica , and Comatricha nigra ( Wheeler 1979 ) . In Nova Scotia , it was collected in red spruce, hemlock, red maple/red oak/ birch, and mixed coastal forests. Wheeler (1979) proposed the name Anisotoma horni for A. obsoleta (Horn) [described by Horn (1880) in the genus Leiodes and later transferred to Anisotoma by Brown (1937b) ] in the belief that the name was preoccupied by “ Leiodes obsoletus ” ( Melsheimer, 1844 ) . Melsheimer (1844) , however, described the species as Pallodes obsoletus [which was later transferred to Neocyrtusa by Brown (1937a) and then to Anogdus by Daffner (1988) ]. Pallodes Melsheimer, 1844 , was in turn preoccupied by Pallodes Erichson 1843 , a genus in the Nitidulidae . Consequently, the two names were not then, and are not now, in the same genus, hence there is no need for a replacement name. Therefore the original name, Anisotoma obsoleta (Horn) , must be reinstated as per Article 59.4 of the Code of Zoological Nomenclature ( ICZN 1999 ). Consequently Anisotoma horni Wheeler is designated as a synonym of A. obsoleta .