Revisiting Betsch & Weiner (Collembola, Symphypleona, Sminthuridae): new species, updated diagnoses, and a key.

Betsch & Weiner is a genus of Sphyrothecinae (Sminthuridae) similar to Börner, with 13 nominal species. Most descriptions of taxa lack valuable data in face of the current taxonomy of Symphypleona. In this study the previously described species of the genus were surveyed, aiming to provide updated diagnoses for them.

Taxonomic papers on Collembola in Zootaxa, 2001 to 2020.

We summarise here publications on Collembola in the journal Zootaxa over the years 2001 to 2020 and include numbers and nationalities of authors and referees. We also list numbers of new species and genera described. For a relatively small pool of taxonomists, we conclude their output has been considerable and Zootaxa has provided a useful vehicle in which to publish their research findings.

Two new species of Bagnall, 1948 (Collembola, Onychiuridae) from Romania and an updated key to the genus.

Two new species of the genus from Romania, . and , are described and illustrated. has a postantennal organ (PAO) with 13-15 simple vesicles, abdominal terga I-III with subequal setae p and p, abdominal tergum V granular area with 3+3 distinct, long macrosetae, and .

A Survey of Handschin, 1942 (Collembola, Neanuridae, Pseudachorutinae) with the Description of a New Brazilian Species.

Handschin, 1942 is a pantropical genus of Pseudachorutinae with 18 species, 16 of which are from the Neotropical Region and 13 from Brazil. The genus has several species with unclear descriptions. Herein, we describe a new species of , survey the genus based on published papers and discuss its morphology, providing an updated genus diagnosis plus a detailed comparison table and a key to all known species.