Pagaronia protecta Okada, 1978

(Figs. 4, 8–15)

Pagaronia protecta Okada, 1978: 380, figs. 56–62.

Taxonomic note. This species had been known only from the type specimens collected from Mt. Dogoyama, Hiroshima Prefecture, western Honshu. We recognize new localities from five prefectures in western Honshu and some intraspecific morphological variations in the male genitalia. Pagaronia protecta has a bifurcated inner process of pygofer lobe and a large ventral projection of aedeagus in the male genitalia. In the material from the type locality and its adjacent area, the dorsal branch of pygofer process is about two times as long as the ventral one (Fig. 9), but in the localities of Tottori and Okayama Prefectures, it is often as long as the latter (Figs. 10, 11). In many localities including the type locality, the ventral projection of aedeagus is about two times as wide as the aedeagal shaft (Fig. 12), but in some eastern localities of its distributional range, in Tottori and Okayama Prefectures, it is about three times as wide as the latter (Fig. 13). In these morphological variations, we observed some intermediate individuals.

Body length (mean). ď, 8.6–9.6 mm (9.1 mm); Ψ, 9.3–10.2 mm (9.7 mm).

Additional material. [Hyôgo Pref.] 1ď (SUU), Mt. Torokawa, Muraoka, Kami, 22. VI. 2005, S. Okudera. [Tottori Pref.] 1ď (ELKU), Himeji, Kôge, 21. VI. 2005, T. Higuchi; 10ď 3Ψ (ELKU & SUU), Ningyô Pass, Misasa, 19. VI. 2005, T. Higuchi & S. Okudera; 6ď (SUU), Shimobata, Misasa, 9. VI. 2010, T. Nozaki; 1ď 1Ψ (SUU), Onji, Misasa, 10. VI. 2010, T. Nozaki; 1ď (SUU), Kubara, Misasa, 11. VI. 2010, T. Nozaki; 6ď (ELKU & SUU), Mikaeri Pass (alt. 700 m), Mitsukue, Kôfu, 20. VI. 2005, T. Higuchi & S. Okudera; 2ď 1Ψ (ELKU & SUU), Shinkoya Pass (alt. 800 m), Kôfu, 20. VI. 2005, T. Higuchi & S. Okudera; 1ď (ELKU), Yodochô-Hongû, Yonago, 1. VI. 2007, S. Okudera. [Shimane Pref.] 1ď (ELKU), Shimanechô-Kaka, Matsue, 1. VI. 2007, S. Okudera; 1ď 1Ψ, Takichô-Kumura, Izumo, 27. V. 2010, S. Okudera; 2ď 1Ψ (ELKU), Kakeyachô-anami, Unnan, 26. V. 2010, S. Okudera; 5ď 5Ψ (SUU), Yoshidachô-Yoshida, Unnan, 24. VI. 2010, T. Nozaki; 9ď 14Ψ (SUU), Tombara, Iinan, 24. VI, T. Nozaki. [Okayama Pref.] 2ď (SUU), Tatsumi Pass, Kagamino, 19. VI. 2005, S. Okudera; 6ď (SUU), Mt. Hiruzen, Kawakami, 12. VII. 2003, M. Takai; 4ď 10Ψ (SUU), Kawakami (light trap), 11. VII. 2003, M. Takai; 6ď 2Ψ (ELKU & SUU), Kuwahirata Pass (alt. 800 m), Niimi, Kôfu, 20. VI. 2005, T. Higuchi & S. Okudera. [Hiroshima Pref.] 18ď 4Ψ (ELKU), Mt. Dôgo, Shôbara, 16. VI. 2004, T. Higuchi; 4ď (ELKU), same data except 26. VI. 2009, S. Okudera; 4ď 8Ψ (ELKU), Mt. Azuma, Shôbara, 16. VI. 2004, T. Higuchi; 1ď 3Ψ (SUU), Saijôchô-Yuki, Shôbara, 27. VI. 2010, T. Nozaki.

Distribution. Japan (western Honshu: Hyôgo, Tottori, Shimane, Okayama and Hiroshima Prefectures).