The subfamily Korinninae is reviewed. A key to genera and species is provided. Kalocorinnis pulchella (de Haan), was previously placed in a different suborder, was found to be the senior synonym of Kalocorinnis calopteryx Günther. Variation in the males of K. pulchella is discussed and illustrated. A new species, Kalocorinnis wegneri, from Borneo, is described and illustrated. The female of Korinnis errans Günther is illustrated. The egg of K. wegneri is the first egg to be described and illustrated from this subfamily.