Extending the fossil record of late Oligocene non-biting midges (Chironomidae, Diptera) of New Zealand

Thirteen Chironomidae specimens from Pomahaka amber were identified as members of the subfamily Orthocladiinae Kieffer. <i>Bryophaenocladius zealandiae</i> sp. nov. Baranov is the first Southern Hemisphere fossil of the genus. <i>Bryophaenocladius</i> Thienemann, 1934 is absent from the extant fauna of the main islands of New Zealand; however, it may be present on the subantarctic Auckland Islands. Two incompletely preserved specimens are described as Morphotype 1 cf. <i>Bryophaenocladius zealandiae</i>. Based on a male adult, <i>Pterosis extinctus</i> sp. nov. Baranov is described as the first fossil record of the extant genus <i>Pterosis</i> Sublette and Wirth, today represented by a single endemic species on the New Zealand subantarctic Auckland Islands and Campbell Island. Two female adult specimens are described as Morphotype 2 cf. Metriocnemini. The new fossils of the genera <i>Bryophaenocladius</i> and <i>Pterosis</i> belong to chironomid taxa requiring terrestrial or semi-aquatic habitats for larval development, supporting the notion of a humid forest swamp paleoenvironment for the Pomahaka amber source forest.