Dactylispa semecarpi is a species of beetle of the family Chrysomelidae. It is found in north-western New Guinea (Biak).
Adults reach a length of about 5.2-5.8 mm. They are orange testaceous to black, with the head and prothorax pale orange ochraceous. The elytra are black with the base pitchy brown.
The host plants for this species are thought to be Semecarpus species.