The black fungus gnats Bradysia similigibbosa sp. n. and B. irwini sp. n. are described and new records of species of Bradysia Winnertz, Ctenosciara Tuomikoski, Epidapus Haliday, Pseudolycoriella Menzel & Mohrig, and Scatopsciara Edwards are presented for New Caledonia. A checklist of the sciarids of New Caledonia is given.