Abstract
Taxonomic and zoogeographic notes on twelve genera of Japanese Cryptinae are reported. Twelve new species, Aritranis kuro sp. nov., Buathra nipponica sp. nov., Cryptus daidaigaster sp. nov., Glabridorsum japonicum sp. nov., Gotra elegans sp. nov., Hoplocryptus ashoroensis sp. nov., H. ezoensis sp. nov., H. intermedius sp. nov., H. japonicus sp. nov., H. maculatus sp. nov., H. toshimensis sp. nov. and Trychosis breviterebratus sp. nov. are described. Two species, Hylophasma luica Sheng, Li & Wang, 2019 and Picardiella melanoleuca (Gravenhorst, 1829) are newly recorded from Japan. The former is also a new record of the genus Hylophasma Townes, 1970 from Japan. Agrothereutes minousubae Nakanishi, 1965 is newly recorded from Honshu and Shikoku. Male of Caenocryptoides convergens Momoi, 1966 is described for the first time. Cryptus dianae is newly recorded from Honshu. Gambrus homonae Sonan, 1930 (comb. rev.) is redescribed including new description of males and new distribution data from Honshu and Izu-oshima Is., Hachijojima Is. And Tsushima Is. Hoplocryptus pini is redescribed including new description of males and new distribution data from Miyakejima Is., Shikoku, Kyushu and Yakushima Is. The second specimen of Hoplocryptus sumiyona Uchida, 1956 is recorded from Tokunoshima Is. Keys to Japanese species of the genera Caenocryptoides Uchida, 1936, Cryptus Fabricius, 1804, Gambrus, Gotra Cameron, 1902, Hoplocryptus Thomson, 1873, Picardiella Lichtenstein, 1920 and Trychosis Förster, 1869 are provided.
