The genus Nanhuaphasma Chen, He & Li, 2002 was established as a member of the family Pseudophasmatidae Rehn, 1904 (now belonging to Aschiphasmatidae Brunner von Wattenwyl, 1893) based on the male of N. hamicercum Chen & He, 2002. We review the status of Nanhuaphasma and N. hamicercum by examining the holotype and male and female non-types which were collected in same location as the holotype. We find that Nanhuaphasma is a junior synonym of Dajaca Brunner von Wattenwyl, 1893 and N. hamicercum is a junior synonym of D. napolovi Brock, 2000. Complementing egg morphology of D. napolovi and keys to eight species of Dajaca are provided.