The present study describes Philodromus rufus Walckenaer, 1826 with detailed descriptions, taxonomic photographs, distribution map, and proposition of a new synonym. Due to morphological similarity between P. pseudoexilis Paik, 1979 and P. rufus, taxonomic identity of P. pseudoexilis has been doubtful to date. A detailed bibliographic study of types of P. pseudoexilis between P. rufus and examination of specimens from the type locality of P. pseudoexilis with specimens of P. rufus collected across the country showed that P. rufus has all diagnostic characters found in types of P. pseudoexilis. Therefore, P. pseudoexilis Paik, 1979 should be regarded as a new synonym of Philodromus rufus Walckenaer, 1826.

1. INTRODUCTION
2. MATERIALS AND METHODS
3. TAXONOMIC ACCOUNTS
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Declaration of Competing Interest
ACKNOWLEDGEMENTS
REFERENCES

• Chang Moon Jang(Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon 22012, Republic of Korea)
• Jung Sun Yoo(Wildlife Quarantine Center, National Institute of Wildlife Disease Control and Prevention, Ministry of Environment, Incheon 22382, Republic of Korea)
• Seung Tae Kim(Life and Environment Research Institute, Konkuk University, Seoul 05029, Republic of Korea) Corresponding author