Two linyphiid spiders, Saitonia kawaguchikonis Saito & Ono, 2001 and Asthenargus niphonius Saito & Ono, 2001 were confirmed from Korea for the first time. Males of S. kawaguchikonis and a female of A. niphonius were collected with pitfall traps in a leaf litter of mixed forests in three National Parks (Hallyeohaesang National Park, Mt. Naejangsan, and Mt. Sobaeksan) during the seasonal surveys for the spider fauna in mountainous terrain from 2018 to 2020. These two species were formerly known from China and Japan, or only from Japan, respectively. The present study describes these two species with measurements, morphological illustrations, and a distribution map. This report adds the genus Asthenargus Simon & Fage, 1922 from Korea to the Korean spider fauna for the first time.

Abstract
INTRODUCTION
MATERIALS AND METHODS
TAXONOMIC ACCOUNTS
REFERENCES

• Chang Moon Jang(Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University)
• Yang Seop Bae(Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University)
• Jung Sun Yoo(Biological and Genetic Resources Utilization Division, National Institute of Biological Resources)
• Sue Yeon Lee(College of Agricultural Life Science, Jeonbuk National University)
• Seung Tae Kim(Life and Environment Research Institute, Konkuk University) Corresponding author