Sensillary patterns in Vertagopus with description of a new European species (Collembola, Isotomidae)

Abstract

The species Vertagopus haagvari n. sp. is described from corticole habitats in Norway, Finland, Denmark and Poland. It differs from the common Vertagopus cinereus (Nicolet) in sensillary chaetotaxy of the tergites. Two patterns of sensillary chaetotaxy were found in 13 examined species of the genus. A third pattern was observed in an undescribed species from Pennsylvania, USA.