The solitary wasp genus Orancistrocerus from Vietnam, with descriptions of two new species (Hymenoptera, Vespidae, Eumeninae) Author Nguyen, Lien Thi Phuong https://orcid.org/0000-0003-3527-9577 Insect Ecology Department, Institute of Ecology & Biological Resources (IEBR), Vietnam Academy of Science & Technology, 18 Hoang Quoc Viet Road, Nghia Do, Cau Giay, Hanoi, Vietnam & Graduate University of Science and Technology, Vietnam Academy of Science & Technology, 18 Hoang Quoc Viet Road, Nghia Do, Cau Giay, Hanoi, Vietnam phuonglientit@gmail.com Author Nguyen, Anh D. https://orcid.org/0000-0001-9273-0040 Insect Ecology Department, Institute of Ecology & Biological Resources (IEBR), Vietnam Academy of Science & Technology, 18 Hoang Quoc Viet Road, Nghia Do, Cau Giay, Hanoi, Vietnam & Graduate University of Science and Technology, Vietnam Academy of Science & Technology, 18 Hoang Quoc Viet Road, Nghia Do, Cau Giay, Hanoi, Vietnam Author Dang, Hoa T. https://orcid.org/0000-0002-8312-2825 Insect Ecology Department, Institute of Ecology & Biological Resources (IEBR), Vietnam Academy of Science & Technology, 18 Hoang Quoc Viet Road, Nghia Do, Cau Giay, Hanoi, Vietnam & Graduate University of Science and Technology, Vietnam Academy of Science & Technology, 18 Hoang Quoc Viet Road, Nghia Do, Cau Giay, Hanoi, Vietnam text ZooKeys 2024 2024-03-01 1193 95 110 http://dx.doi.org/10.3897/zookeys.1193.116087 journal article http://dx.doi.org/10.3897/zookeys.1193.116087 1313-2970-1193-95 1457DD9918B0413CA0D0FBD11878A45F EA19A2400D965CA3AB43B8CCC821462A Orancistrocerus altus Truong, Bozdogan & Nguyen, 2019 Orancistrocerus altus Truong, Bozdogan & Nguyen, 2019: 596. Remarks. The species is known only from the type locality, Huu Lien Nature Reserve, Lang Son Province, northern Vietnam.