Amblopusa magna Zerche, 1998

Tasaku, Yuto, Ono, Hiroki & Maruyama, Munetoshi, 2023, Review of the intertidal rove beetle tribe Liparocephalini Fenyes (Coleoptera, Staphylinidae, Aleocharinae) from Japan, Zootaxa 5383 (3), pp. 251-296 : 277

Amblopusa magna Zerche, 1998

[Japanese name: Oo-nokoba-umi-hanekakushi]

( Figs. 17A ; 18A & B ; 26 )

Amblopusa magna Zerche, 1998: 103 (original description; type locality: Russia, Primorskiy Kray, Ryazanovka, 14 km SW Slavyanka); Ahn et al., 1999: 641 (locality record).

Material examined. Japan: Hokkaidô: 36 unsexed, Ishikari-shi, Hamamasu-ku, Horo , 30. IV. 2022, R. Wakimura (cYT) ; 7 unsexed, Ishikari-shi , Atsuta-ku , Gokibiru , 24. IV. 1999, M. Maruyama ( KUM) ; 1 male, 4 unsexed, Betsukai-chô, Odaitô, 23. VII. 2020, Y. Tasaku (cYT) ; 15 unsexed, Kushiro-chô, Senpoushi-mura, 24. VII. 2020, Y. Tasaku (cYT) ; 6 unsexed, Hamanaka-chô, Mochirippu, 26. IX. 2000, M. Maruyama ( KUM) ; 3 unsexed, ditto, 12. IX. 1999, H. Sano ( KUM) ; Kushiro-shi, Chiyonoura, 14. IX. 2008, M. Nishikawa ( KUM) ; 1 unsexed, Abashiri-shi, Komaba, 20. VI. 2022, Y. Tasaku (cYT) ; 1 male, 1 female, 30 unsexed, Akkeshi-chô, Akkeshi-ko, 3. VIII. 2022, D. Sumikawa & Y. Tasaku (cYT) ; 4 unsexed, Wakkainai-shi, Souya-mura, Higashiura, 20. IV. 2022, D. Sumikawa (cYT) ; 2 unsexed, Samani-chô, Horoman, 2. V. 2023, D. Sumikawa (cYT) .

Diagnosis. It can be easily distinguished from other species of this genus by its large body and darker body color ( Fig. 17A ).

Distribution. Japan: Hokkaidô; Russia: Primorskiy Kray, Kuril Islands ( Fig. 26A ).

Figures

FIGURE 17 Habitus of Amblopusa spp. A, A. magna; B, A. pacifica; C, A. brevipes; D, A.hokkaidona. Scale bar: 1.0 mm.

FIGURE 18 Genitalia of Amblopusa spp. A & B, A. magna (A, median lobe of aedeagus; B, spermatheca); C & D, A. pacifica (C, median lobe of aedeagus; D, spermatheca); E–G, A. brevipes (E, median lobe of aedeagus; F, spermatheca; G, apical lobe of paramere). Scale bars: 0.1 mm.

FIGURE 26 Distribution and habitat of Amblopusa spp. of Japan. A, known localities in Japan (red circle, A. magna; blue square, A. pacifica; yellow triangle, A. brevipes; green inverted triangle, A. hokkaidona); B, habitat of A. magna and A. pacifica (Wakkainai-shi, Hokkaidô, photographed by Daisuke Sumikawa); C, habitat of A. magna (Abashiri-shi, Hokkaidô).