Nguyen LTP, Xu Z. Two new species of the genus Okinawepipona Yamane (Hymenoptera: Vespidae: Eumeninae) from Vietnam and China. Zootaxa [Internet]. 2014 May 9 [cited 2025 Apr. 25];3795(1):38–44. Available from: https://mapress.com/zt/article/view/zootaxa.3795.1.4