Two new Neanurid Collembola, Paranura and Yuukianura (Neanuridae: Neanurinae) from Japan, with a checklist of species and key to the Japanese genera of Neanurinae.

We describe and illustrate two new species of Neanurinae, Paranura ezoensis sp. nov. and Yuukianura kikaiensis sp.

Four new saproxylic species of Paranura Axelson, 1902 (Collembola: Neanuridae: Neanurinae) from Japan.

Four new saproxylic species of the genus Paranura from Nagasaki, Nara, and Niigata provinces of Japan are described and illustrated in this paper. Paranura tsushimaensis sp. nov.

Undesirable dispersal via a river pathway of a single Argentine ant supercolony newly invading an inland urban area of Japan.

Invasive ants pose a risk to human well-being and social/ecosystem stability. Linepithema humile Mayr is among the most damaging invasive ants worldwide. Most L.

A new species of the genus Crossodonthina (Collembola: Neanuridae: Neanurinae: Lobellini) from Yonaguni-jima in southwest Japan.

We describe a new species of Collembola, Crossodonthina elegans sp. nov., collected from Yonaguni-jima, southwest Japan.

First report of the genera Paralobella and Blasconura (Collembola: Neanuridae: Neanurinae) from Japan with the description of three new species.

This study reports the first record of the genera Paralobella Cassagnau Deharveng, 1984 and Blasconura Cassagnau, 1983, three new species from Kuchinoerabu-jima and Miyako-jima of Japan, respectively. Paralobella kuchierabu sp. nov.