Abstract
Howickia Richards 1951 is redefined to include all wingless or strongly brachypterous Sphaeroceridae in New Zealand as well as two newly described fully winged species, H. oliveri and H. lepidostylus. Biroina Richards 1973 is newly treated as a junior subjective synonym of Howickia. The following new flightless species are described from New Zealand: H. bicolor, H. cordata, H. exasperata, H. harrisoni, H. mercurialis, H. nigrilegula, H. nigriventer, H. nudistylus, H. omamari, H. palmai, H. regalis, H. tangata, H. wahaika and H. zonula.