Ulf BUchsBaUm, John R. GRehan, mei-YU chen, nGUYen minh chi, DUY lonG Pham, TRan QUanG Khai, loRen D. Jones & niKolai iGnaTev

Vernate, 41/2022: S.267-286

Summary

Discovery of Endoclita vietnamensis sp n. is based on a single specimen (holotype) from Phia Oac-Phia Den National Park, and 21 paratypes collected from Eucalyptus and Acacia plantations. Reared specimens of E. vietnamensis sp. n. were obtained from Acacia mangium. E. urophylla x E. grandis, and A. mangium x A. auriculiformis. E. salvazi was reared from Eucalyptus urophylla x E. grandis. The proposed taxonomic status of E. vietnamensis sp. n. is supported by wing pattern and male genitalia differences compared with five other species in eastern China and Taiwan that have a similar overall appearance. Identification of Vietnamese E. salvazi was made by comparing the male genitalia with the holotype male from northern Laos. The female of E. salvazi is described here for the first time. The probable close relatives of each species are identified, and the biogeographic significance of their respective distributions is briefly considered with respect to the historical role of the Red River strike-slip fault in promoting ancestral divergence.