Fig. 7. Map showing the distribution of the Rakantrechus Complex (in part) and anophthalmic species of the genus Trechiama in western Japan.—Light green square, Rakantrechus (s. str.); orange square, R. (Izushites); green circle, R. (Iyotrechus); yellow circle, R. (Pilosotrechiama); green triangle, Nipponaphaenops (s. str.); blue open triangle, N. (Tanakaphaenops) subgen. nov.; purple obtriangle, Ishikawatrechus; large purple circle, anophthalmic Trechiama species.—An, the type locality of Ishikawatrechus annulus Sugaya et Hara; Tk, the type locality of Nipponaphaenops (Tanakaphaenops) kojii sugen. et sp. nov. The course of the Hôyo River in the Last Glacial Maximum was drawn according to Kuwashiro (1959).

Published as part of Karaoğlan, Beliz Bahar, Yekedüz, Emre, Yazgan, Satı Coşkun, Mocan, Eda Eylemer, Köksoy, Elif Berna, Yaşar, Hatime Arzu, Şenler, Filiz Çay, Utkan, Güngör, Demirkazık, Ahmet, Akbulut, Hakan & Ürün, Yüksel, 2022, Contribution to the Knowledge of the Rakantrechus Complex (Coleoptera, Carabidae, Trechini), with Description of a New Subgenus and a New Species of the Genus Nipponaphaenops S. Uéno, 1971 from Northwestern Shikoku, Western Japan, pp. 119-138 in Bulletin of the National Museum of Nature and Science. Series A, Zoology (Zoology) 48 (3) on page 135, DOI: 10.50826/bnmnszool.48.3_119, http://zenodo.org/record/12760044