Perkins PD.

Thirty-three new species of water beetles in the genus Hydraena Kugelann from Cameroon (Coleoptera: Hydraenidae)

. Zootaxa [Internet]. 2022 Nov. 3 [cited 2025 Jun. 20];5203(1):1-66. Available from: https://mapress.com/zt/article/view/zootaxa.5203.1.1