EN
Trischidothrombium discrepans (Willmann, 1950) is redescribed basing on postlarval instars. The larva of the genus is described for the first time. Data on habitat specificity and phenology of the species as well as on larval developmental time are given. A female, from which larvae were obtained by experimental rearing, has been designated as neotype. The distribution of the genus, hitherto known from Austria and Hungary, is extended for Poland. The phylogenetic position of Trischidothrombium within the Microtrombidiidae is discussed.