A review of the oribatid mites of the genus Papillacarus Kunst, 1959 (Oribatida: Lohhmanniidae) in Vietnam, with remarks on the taxonomic status of P. arboriseta, is presented. The article provides also a key to nine species recorded in Vietnam, namely P. arboriseta Jeleva et Vu, 1987, P. benenensis Vu, Ermilov et Dao, 2010, P. cornutus (Sarkar et Subias, 1984), P. hirsutus (Aoki, 1961), P. indistinctus Ermilov, Anichkin et Wu, 2012, P. polygonatus Ermilov et Anichkin, 2011, P. polysetosus Ermilov, Anichkin et Wu, 2012, P. ramosus Balogh, 1961, and P. undirostratus Aoki, 1965. | Systematics and Phylogenetics ACTA ZOOLOGICA BULGARICA Research Article Acta zool. bulg. 66 2 2014 165-172 A review of the Genus Papillacarus Acari Lohmanniidae in Vietnam with Remarks on the Taxonomic Status of P. arboriseta Manh Q. Vu Tien H. Nguyen Lien V. Vu Institute of Biodiversity and Ecosystem Research IBER 2 Yurii Gagarin Street 1113 Sofia Bulgaria Permanent Address Center for Biodiversity Resources Education amp Development CEBRED Hanoi National University of Education HNUE 136 Xuan Thuy Rd. DHSP Cau Giay Hanoi. Vietnam Email vqmanh@ vqmanh@ Thai Binh Medical University Thai Binh Province Vietnam Email htienbs@ Vietnam National Museum of Nature 18 Hoang Quoc Viet Rd. Cau Giay Hanoi Vietnam Email vulien@ Abstract A review of the oribatid mites of the genus Papillacarus Kunst 1959 Oribatida Lohhmanniidae in Viet- nam with remarks on the taxonomic status of P. arboriseta is presented. The article provides also a key to nine species recorded in Vietnam namely P. arboriseta Jeleva et Vu 1987 P. benenensis Vu Ermilov et Dao 2010 P. cornutus Sarkar et Subias 1984 P. hirsutus Aoki 1961 P. indistinctus Ermilov An- ichkin et Wu 2012 P. polygonatus Ermilov et Anichkin 2011 P. polysetosus Ermilov Anichkin et Wu 2012 P. ramosus Balogh 1961 and P. undirostratus Aoki 1965. For each species a list of synonyms information on types and type localities a brief new description an illustration taxonomic problems as well as remarks on the ecology and distribution are included. These species are known from the Oriental Region and Southeast Asia and five of them are recorded only from Vietnam. Keywords Oribatida Lohmanniidae Papillacarus arboriseta Vietnam Introduction Oribatid mites Acari Oribatida play an important regions. The genus Papillacarus one of the most role in soil ecosystems particularly for decompo- diverse genera in the family Lohmanniidae was sition of plant litter nutrient cycling soil forma- described in 1959 by Kunst with
