Dalotia coriaria

Dalotia coriaria (Kraatz, 1856) (Figs. 1A–B, 3) Homalota coriaria Kraatz, 1856: 282 (original description); Wollaston, 1864: 543 (catalogue); Sharp, 1869: 204 (description). Homalota subcoriaria Wollaston, 1864 (original description): 543; Bernhauer & Scheerpeltz, 1926: 640 (catalogue, as synonym of Atheta (Atheta) coriaria). Homalota australis Jekel, 1873: 47 (original description); Bernhauer & Scheerpeltz, 1926: 640 (catalogue, as a synonym of Atheta (Atheta) coriaria). Atheta (Atheta) coriaria: Bernhauer, 1907 (catalogue); Muona, 1979 (mentioned not belong to Atheta): 48; Smetana, 2004: 374 (catalogue); Maruyama & Kishimoto, 2013: 107 (catalogue); Schülke & Smetana, 2015: 518 (catalogue). Pseudota miscella Casey, 1910: 115 (original description); Gusarov, 2003 (synonymized with Dalotia coriaria). Dimetrota (Dalotia) pectorina Casey, 1910: 106 (original description); Gusarov, 2003 (synonymized with Dalotia coriaria). Dimetrota (Dalotia) crucialis Casey, 1910 (original description): 107; Gusarov, 2003 (synonymized with Dalotia coriaria). Atheta brachelytra Scheerpeltz, 1948: 194 (original description); Benick, 1973 (synonymized with Atheta coriaria). Atheta (Xenota) coriaria: Jarrige, 1957. Atheta wynigeri Scheerpeltz, 1970: 49 (original description); Vogel, 2015 (synonymized with Atheta (Atheta) coriaria). Taxicera academica Yosii & Sawada, 1976: 125 (original description); Muona, 1979: 48 (synonymized with Atheta coriaria )). Xenota coriaria: Seevers, 1978: 247 (catalogue). Atheta coriaria: Ashe & Watrous, 1984: 175 (description of larva). Dalotia coriaria: Gusarov 2003: 89; Newton, 2024 (catalogue); Lee et al., 2024: 581 (redescription). Materials examined. Four males and six females, Kamimaki, Ina city, Nagano Pref., Japan, 26.VII.2024, S. Hashizume (KUM); two males and one female, Daitô-jinja, Minamidaitô-jima Island, Okinawa Pref., Japan, 27. VI.2023, T. Kinoda (KUM). Diagnosis. Dalotia coriaria differs from other species of Dalotia by the following characteristics: apical margin of male tergite VIII dentate (fig. 55G in Yosii & Sawada, 1976; 5A in Lee et al., 2024); median lobe of male aedeagus with large suspensoria and long sclerites (figs. 55K in Yosii & Sawada, 1976; 6A & B in Muona, 2023; vagina with two pairs of sclerites (Fig. 3D). Additional description. Male. Tergites IX, X, and sternite IX shown in Figs. 3A & B. Female. Tergites IX, X, and sternite IX shown in Figs. 3C & D. Vagina weakly sclerotized, semicircular, with two pairs of sclerite (Fig. 3D). Spermatheca: head elongate, without umbilicus; stem short (about twice as long as spermathecal head), helically coiled once around base (Fig. 3D). Distribution. Japan: Honshu, Minamidaitô-jima Island (new record); cosmopolitan. Habitat. This species is mainly collected from piled grasses. Remarks. This species is distributed worldwide (Newton, 2024). From Japan, it is only known from Honshu. Here, we record this species from Minamidaitô-jima Island, located approximately 400 km east of the Okinawajima Is., for the first time.