Based on available literature sources, we have listed the genera and species of springtails (Collembola) of Iran located in Southwest Asia. In total, 301 named species of Collembola are listed in catalogue. This includes 286 described species in 109 genera from 20 families recorded from Iran. Of them, 15 species are also considered as dubious species. It also includes 15 genera whose species are still unknown. Information about biology, geographical distribution, ecology, authorship records for different provinces, and bibliographical data of Iranian Collembola are included.

Plutomurus weinerae sp. nov. from Usholta Cave, Racha-Lechkhumi and Kvemo Svaneti region, Georgia, and P. danialensis sp. nov. from Danial Cave, Mazandaran province, Iran are described, illustrated and differentiated from other morphologically similar congeners. New species are distinguishable from similar species by head and abdominal macrochaetotaxy (P. weinerae) and by shorter antennae (P. danialensis). An updated identification key to the species of the genus Plutomurus known from the Western Palearctic is presented. A list of the invertebrate communities for Usholta and Danial caves is provided.

Two new subterranean species of the genus Acherontiella Absolon, 1913 from Iran are described, illustrated, and morphologically differentiated from similar species. Acherontiella nezamdoostisp. nov. has larger distribution range covering caves of North Khorasan, Razavi Khorasan, and Tehran provinces, while A. palaciosisp. nov. is probably restricted to Moghan Cave in Razavi Khorasan province. Both new species are characterized by absence of eyes, PAO, empodium, furca, and retinaculum. Acherontiella nezamdoostisp. nov. is distinguished from other species by having two small anal spines, Th II–III with setae m1, m4, and m5, and four thickened anterior setae on the labrum. Acherontiella palaciosisp. nov. is characterized by bearing two medial setae in the anterior row of the labrum thickened into spines and apically dentate, and by the absence of setae m3 on Th I and p3 on Th II–III. An updated key and a table summarizing diagnostic characters of world species of the genus Acherontiella are provided.

A new species of Oncopodura (Collembola, Entomobryomorpha, Oncopoduridae) from the Moghan cave in northeastern Iran, built in a carbonate complex of Kopet Dag mountain range, is described. Oncopodura moghanensis sp. nov. can be distinguished from other congeners by (1) 6 long subequal lobes in PAO, each subdivided into 3–6 fingers, (2) dens with 7 dorsal feather-like macrosetae; at basal part with 1 dorsoexternal and 2 dorsointernal hooks, at the distal part with 1 dorsoexternal and 3 dorsointernal hooks, (3) distal part of manubrium with long feather like macrosetae reaching middle part of dens, and (4) mucro with 4 teeth, apical tooth very sharp, and 2 scales at its basal half. A table with diagnostic characters of species related to the Oncopodura moghanensis sp. nov. and an updated key to the world species of Oncopodura are provided.

Soil-dwelling Entomobryomorphan Collembola from the Northeast of Iran were sampled for the first time as part of a biodiversity surveying study with the aim of improving ecosystem conservation. Materials were obtained by sampling in three different ecosystems including forest, rangeland and agricultural fields between 2018 and 2019. The specimens were cleared ...

As part of a comparison of the collembolan fauna in soil of forest, grasslands and broadacre agriculture in north east Iran, several pale green specimens were found that complied with all characters of Isotomurus prasinus (Reuter, 1891) and keyed out as such in Potapov (2001) except that the body covering consisted of smooth mesochaetae and not ciliated chaetae as are present in prasinus according to Potapov (2001). On a more extensive examination of the recent literature, it was clear that the Iranian specimens belonged to the species Isotomurus graminis Fjellberg, 2007 described six years later. In his description, Fjellberg (2007) notes that some specimens of the new species could have previously been identified as I. prasinus in spite of having a different chaetotaxic covering. He also notes that, in a number of characters, it is identical with Isotomurus unifasciatus (Börner, 1901) but the colour differentiates them as this latter species usually has a broad, pigmented, longitudinal dorsal stripe.