Synonym:=Oxypoda lividipennis,O. lata Stephens, O. luteipennis Erichson, O. sheppari Stephens Classification: ord. Coleoptera, superfam. Staphylinoidea, fam. Staphylinidae, subfam. Aleocharinae, tribe Aleocharini, subtrib Aleocharina, genera Oxypoda Annual research program is enhanced by study group staphylinid existing in our country. Staphyilinic group included in the research include several subfamilies. For the purposes of follow staphylinid species distribution in natural and agricultural ecosystems, the paper focuses on staphylinid Oxypoda acuminata (Stephens, 1832) from sub-family Aleocharinae. Among aleoharine studied simultaneously, it falls within the group active predators. The literature is pronounced tendency cohabitation with small mammals: shrews, pets, gophers, moles, interact with social insects (ants), consume small insects, fungi inhabit the corpses of animals, etc.. From my own observations, because consume Diptera larvae, often flying in the first wave (dominate small aleoharinele) for the layer of fresh manure: buffalo, cow, horse, pig, even manure goat and sheep. It is active both day and night, as evidence were ordinary lamps with ultraviolet light and located in different points of research. In the field, especially in dry years, retired were from flowers and foliage plants Field: the wheat, rape, apricot, apple, potato, strawberry, etc. Study for whole group of staphylinid and this species in our country, attended by researchers: V. Ostaficiuc, R. Stepanov, V. Ciubcic, S. Bacal, I. Mihailov. The contribution of evidence existing database overall group of staphylinid is examined material (gained by other researchers) and collected material (accumulated by the author). Examined material: Cioresti, Nisporeni District, 06.06.1968 - 10 (4 ♂♂, 6 ♀♀), 12.06.1968 - 2 ♀♀ horses manures, 13.06.1968 - 3 ♀♀ gopher’s burrow; Calfa, Anenii Noi District, 11.10.1968 - 2 ♀♀ on maize leaves; Hirtop, Dubasari District, 20.06.1968 - 3 ♀♀ cattle manures; Dubasarii Vechi, Criuleni District, 19.06.1968 - 1 ♀ cattle manures; Ghidighici, Chisinau municipalty, 12.07.1968 - 1 ♀ on decomposed plants; Iablona Noua, Glodeni District, 18.07.1968 - 1 ♂ on decomposed plants (leg. V. Ostaficiuc); Ivancea, Orhei District, 20.05.1976 - 1 ♀, 16.10.1976 - 1 ♀ forest, litter (leg. R. Stepanov); Chisinau city, 11.03.2008 - 1 ♀ on dog corpse; Sarata-Mereseni, Hincesti District, 19.05.2008 - 2 (1 ♂,1 ♀) on mushroom; Capriana, Straseni District, 11.07.2008 - 1 ♂ forest, litter (leg. V. Ciubcic); Codrii Tigheci, 31.05.2005 - 2 ♀♀ oack tree (leg. V. Ciubcic). After collecting the researchers are analyzed, of which 11 points were accumulated 31 (7♂, 24♀♀) specimens. Collected material: The CENTER: Gratiesti, 17.07.2008 - 1 ♂, 08.09.2009 - 1 ♀ grassland, cattles manures, 24.09.2008 - 1 ♀ wheat; Codru, 09.04.2009 - 1 ♀ apricot orchard; Fauresti, 13.08.2009 - 1 ♀ cattles manures; Chetrosu, 19.07.2008 - 3 ♀♀ bank of Nistru; Bacioi (Chisinau municipality), 12.11.2010 - 1 ♀ on rape; Micauti, 03.06.2009 - 1 ♀ forest, litter; Lozova (Straseni District), 19.08.2009 - 2 ♀♀, 21.06.2011 - 9 (1 ♂, 8 ♀♀) natural researve, wet meadow, cattles manures; Grigoropol city, 29.05.2009 - 1 ♀ cattles manures; Cocieri, 04.07.2008 - 1 ♂ cattles manures; Ustia, 16.05.2009 - 2 ♀♀ cattles manures; Rohii, 26.06.2009 - 7 ♀♀ cattles manures, grassland; Goian, 20.09.2009 - 10 ♀♀ cattles manures; Doibani (Dubasari District), 02.07.2010 - 1 ♀ cattles manures; Dubasarii Vechi, 15.08.2010 - 13 (7 ♂♂, 6 ♀♀) cattles manures; Cimiseni (Ciuleni District), 20.08.2010 - 18 (3 ♂♂, 15 ♀♀) cattles manures; Peresecina, Orhei District, 10.04.2011 - 3 ♀♀ bank of the pond, piles of plant debris; The NORTH: Pascauti, Riscani District, 20.08.2009 – 2 ♀♀ cattles manures; Dusmani, 16.08.2008 - 1 ♀ cattles manures; Moara Domneasca (Glodeni District), 20.08.2009 - 3 ♀♀ aurochs manures, 1 ♀ forest, litter; Saharna, 28.08.2010 - 91 (63 ♂♂, 28 ♀♀) natural researve, bank of Nistru, resturi vegetale; Tipova (Rezina District), 28.08.2010 - 77 (56 ♂♂, 21 ♀♀) canyon, cattles manures, 15 (6 ♂, 9 ♀) canyon, horses manures; Brinzeni, Edinet District, 21.10.2010 - 7 ♀♀ forest, soil Barber traps, 01.11.2010 - 7 (2 ♂♂, 5 ♀♀) orchard not maintained, soil Barber traps, 27.05.2011 - 1 ♀ forest, light trap; Marcauti, Briceni District, 27.03.2011 - 3 ♀♀ forest, litter; The SOUTH: Landscape Researve Tigheci, 18.10.2008 - 1 ♀ forest, litter; Musaid, Taraclia District, 19.04.2011 - 1 ♀ wheat; Cahul city, 29.04.2011 - 5 ♀♀ forest strip. Collection of species occurred during PhD: 2008-2011. During this time were explored 26 points in all three areas of the country and gathered 292 (140 ♂♂, 152 ♀♀) specimens. According to the annual records, collection points and the number of specimens can conclude that climatic conditions in the country during the period studied were favorable for the development of Oxypoda acuminata. Being frequent manure is presented as an indicator of the state of this microbiotop and the presence of larvae of Diptera and / or other small insects that inhabit; fall into nocturnal insects team because it is attracted to artificial light; agricultural habitats ground that inhabit the place to serve refuge in extreme or development.