Type: Xylophilous Fungi; Description: Ascomata perithecial, scattered, superficial, globose with a 250–1000 μm long neck, black, 0.10–0.3 mm in diameter, perithecial necks straight, curved or tortuous, black, ostiolar hyphae absent; in bark beetle galleries in inner bark or outer sapwood and as hyphae in the sapwood. Asci evanescent. Ascospores reniform, 0-septate, 4–6 × 3–5 μm, smooth, hyaline, emerging from the ostiole in spiral cirri. Conidiophores with a dark brown to blackish brown stipe; conidiogenous cells borne on penicillate branches, hyaline. Conidia oblong to clavate, 0-septate, 4–9 × 1–4 μm, smooth, hyaline, produced in slimy heads.

Distribution: Auckland, Coromandel, Waikato, Bay of Plenty, Taranaki, Taupo, Wanganui, Wellington, Hawkes Bay, Wairarapa, Nelson, Marlborough, North Canterbury, Mid Canterbury, Dunedin, Southland.; 1st Record: Hutchison & Reid (1988a: as Ceratocystis piceaperda).

Notes: This species has been misidentified as Ophiostoma piceaperda by earlier New Zealand authors.

Significance: None. Produces a brown to black stain in wood.; Host(s): Pinus nigra subsp. nigra, P. radiata, P. taeda.