taxonID	type	description	language	source
C9EE2345F1BB5A9C8B87C9E1D5CEC642.taxon	description	Figs 5, 6, 30, 38, 52 Japanese name: kurosuji-tsumaorega	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
C9EE2345F1BB5A9C8B87C9E1D5CEC642.taxon	diagnosis	Diagnosis. This species is externally similar to whitish Erechthias species, E. itoi, E. acrodina Meyrick, 1912 and E. charadrota but it can be distinguished by the following characteristics: from the base to the basal 1 / 3 of the costal margin is black, but the middle is interrupted by a cream to white spot in the forewing (almost black, but with a narrow white line in E. itoi; from the base to the basal 1 / 4 cream without black scales in E. acrodina; completely black in E. charadrota). The male genitalia are also similar to those of E. itoi, E. acrodina, and E. charadrota, but it can be distinguished by the shape of valva: the shape of the valva is oval, without the basicostal process, and the ventral margin is slightly rounded (the elongate basicostal process is present and the ventral margin curved at apical 1 / 3 in E. itoi, the basicostal process is absent and slightly concaved at ventral margin in E. acrodina, the shape of valva rounded is rectangle and the basicostal process is absent in E. charadrota). The female genitalia are also similar to those of E. itoi, but it can be distinguished by the shape of signum: the signum is small, simple knob-shaped, and with no additional lobes (the signum is absent in E. itoi).	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
C9EE2345F1BB5A9C8B87C9E1D5CEC642.taxon	description	Additional description. Measurements. Forewing length 6.8 mm in male, 8.1 mm in female, antenna length 4.8 mm in male, 5.0 mm in female in Ogasawara Islands. Wingspan 13 mm in male in original description.	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
C9EE2345F1BB5A9C8B87C9E1D5CEC642.taxon	distribution	Distribution. Japan (Honshu, Shikoku, Kyushu, Tsushima Is., Hahajima Is., Okinawajima Is., Ishigakijima Is., Iriomotejima Is., Yonagunijima Is.), Taiwan, and South Korea (Sakai 2013; Lee et al. 2020; Park et al. 2024 b).	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
2D5D97526D3E505DBA6944DFDA45D670.taxon	description	Figs 13 – 16, 23 – 24, 25 – 26, 34, 42, 50, 51, 52 Japanese name: Kimon-tsumaorega	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
2D5D97526D3E505DBA6944DFDA45D670.taxon	diagnosis	Diagnosis. The new species is externally similar to E. epispora (Lower, 1905), E. nidumicola sp. nov., and E. oculus sp. nov., but it can be distinguished by a combination of the following characteristics: the costal margin of the forewing with one or two narrow to broad triangular cream spots; the frenulum is a pair of slender bristles in females; the hindwing has secondary sexual scaling in males; the valva is relatively long, costal margin lacks lobe in the male genitalia; the signum is simple hook-shaped, and the corpus bursae is twisted and weakly sclerotized at the posterior 1 / 4 in the female genitalia.	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
2D5D97526D3E505DBA6944DFDA45D670.taxon	description	Description. Male. (Figs 13, 14, 23, 25) Forewing length 3.6 mm, antenna length 2.6 mm in holotype. Forewing length 3.2 – 4.1 mm (n = 5), antenna length 2.1 – 3.0 mm (n = 4) in paratypes. Head. Vertex cream to ocherous white, frons lighter than vertex; vertex with or without narrow gray bands. Labial palpus cream, second palpomere with robust brush hair, outer surface covered with dark brown to gray scales, and with few black bristles; basal 1 / 2 of third palpomere dark brown to gray. Antenna filiform; scape cream to ocherous white, notch absent; flagellomere cream, outer surface gray. Thorax. Mesonotum dark brown, posterior tip yellow. Tegula covered with brown to dark brown and yellow scales. Foreleg dark gray, inner surface cream; distal end of tarsus with cream band. Midleg cream; outer surface of tibia and tarsus ocherous gray. Hindleg cream, outer margin of tibia strongly concaved, and bearing with long ocherous gray hairs; tarsus ocherous gray, distal end cream. Forewing venation with Sc, R 1 – 3 and R 4 + 5, M 1, M 2 + 3, CuA 1, CuA 2 and CuP, 1 A + 2 A present; R 1 from basal 3 / 7 of discal cell to 4 / 7 of costa; 1 A fused with 2 A from basal 1 / 4 of wing to end. Apex of forewing not upturned. Forewing ground color dark brown with cream to yellow oblique spots; costal margin with four trapezoidal spots: basal 1 / 3, middle, subapical area, and apex; dorsum with two spots: basal 1 / 8 and 2 / 3; submarginal area of termen and apex cream, fringed with black scales; cilia gray on outer margin, underside dark brown. Hindwing venation with Sc + R 1, Rs, M 1 – 3, CuA 1 – 2 and CuP, 1 A + 2 A present; Rs reduced and fused with Sc + R 1, terminating on costa at apical 1 / 3; M 1 and M 2 stalked at basal 2 / 3 of wing; M 1 terminating on costa at subapex; Sc and R modified to accommodate secondary sexual scaling; frenulum a single slender bristle. Hindwing fuscous brown to gray; cilia fuscous brown to gray; base of Sc and R with secondary sexual scaling. Abdomen. covered with dark brown to fuscous brown scales. Female. (Figs 15, 16, 14, 26, 50) Forewing length 3.3 – 5.0 mm (n = 11), antenna length 2.1 – 3.1 mm (n = 8) in paratypes. Almost same as male but different as follows: tibia not concaved in hind leg; yellow spots tend to be wider than male in forewing; Sc + R 1 not modified, Rs terminating on costa at apical 1 / 5 in hindwing vein; hindwing simple, not with secondary sexual scaling; frenulum consisting of two slender bristles. Male genitalia. (Fig. 34) Uncus long, a pair of membranous lobes, apex with few bristles. Tegumen narrow ribbon-shaped, fused with vinculum. Vinculum almost same length of tegumen; saccus rounded triangle. Valva elongated narrow trapezoidal with rough bristles at ventral and anterior margins; ventral margin straight, apically rounded; dorsal costa broad, with short spines, basicostal process absent. Juxta strongly sclerotized, elongated and narrow pouched. Phallus thick cylindrical, weakly curved, 1.4 × length of valva; vesica with one pair of twisted, sharp, blade-shaped cornuti and a few small spicular cornuti. Female genitalia. (Fig. 42) Ovipositor broad, 3 × length of segment VIII; papillae analis with rough short bristles; apophysis posterioris slightly longer than apophysis anterioris. Segment VIII broad, rectangular, posterior margin with ~ 20 long bristles; tergum VIII with stout dorsal rami fusing with apophysis anterioris; ostium located at anterior margin of sternum VIII; ostium wide, funnel-shaped with many small spines, posterior end weakly sclerotized. Ductus bursae tubular, 2.3 × length of corpus bursae; at anterior 1 / 4 broad and curved. Corpus bursae piriform, posterior end weakly sclerotized; signum spatulate.	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
2D5D97526D3E505DBA6944DFDA45D670.taxon	distribution	Distribution. Japan (Hachijohjima Is., Nakodojima Is., Ototojima Is., Anijima Is., Chichijima Is., Hahajima Is., Mukohjima Is., Hirajima Is., Minami-iwoto Is.).	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
2D5D97526D3E505DBA6944DFDA45D670.taxon	etymology	Etymology. The name of the new species is derived from the Latin flavus (yellow) + macula (spots), referring to the forewing pattern consisting of many yellow spots.	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
45C2F15E3819551E9C9B953372A46E95.taxon	description	Figs 1, 2, 27, 35, 43, 44, 51, 52 Japanese name: Ogasawara-tsumaorega	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
45C2F15E3819551E9C9B953372A46E95.taxon	diagnosis	Diagnosis. This species is externally similar to E. atririvis (Meyrick, 1931) and E. charadrota Meyrick, 1880 but can be distinguished by the following characteristics: the anterior 1 / 2 of the forewing is black from the base to basal 2 / 3 (the basal 2 / 5 is black with a white spot in E. atririvis, the black line is divided by a white line at the middle in E. charadrota). The male genitalia are similar to those of E. chasmatias (Meyrick, 1880), but can be distinguished by the phallus: the phallus with a cluster of ~ 15 distinct cornuti (phallus with large curved cornuti in E. chasmatias). The female genitalia are similar to those of E. trigonosema (Turner, 1923) but can be distinguished by the following characteristics: the ovipositor is relatively short, 2 × the length of segment VIII, and basal 1 / 5 of the ductus bursae is sclerotized (the ovipositor is relatively long, 4 × the length of segment VIII, and the ductus bursae is completely sclerotized in E. trigonosema).	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
45C2F15E3819551E9C9B953372A46E95.taxon	description	Additional description. Measurements. Forewing length 6.5 – 8.2 mm (n = 5), antenna length 6.2 – 7.6 (n = 4) in male, forewing length 8.0 – 9.7 (n = 5), antenna length 7.1 – 7.7 (n = 3) in female. For more morphological information, see Moriuti and Kadohara (1994) and Yoshimatsu and Makihara (1995).	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
45C2F15E3819551E9C9B953372A46E95.taxon	distribution	Distribution. Japan (Chichijima Is., Hahajima Is., Iwoto Is.).	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
921A8CE763825658B11EA9E18013658C.taxon	description	Figs 4, 29, 37, 46, 51, 52 Japanese name: Nanyo-hime-tsumaorega	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
921A8CE763825658B11EA9E18013658C.taxon	diagnosis	Diagnosis. This species is externally similar to E. iolaxa Moriuti & Kadohara, 1994, but it can be distinguished by the following characteristics: the costal margin has two brown lines in the forewing (absent in E. iolaxa); the apex of the valva is rounded in the male genitalia (sharp in E. iolaxa); the ductus bursae are twisted; and the signum is simply knob-shaped in the female genitalia (relatively large and curved in E. iolaxa).	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
921A8CE763825658B11EA9E18013658C.taxon	description	Additional description. Measurements. Forewing length 3.9 – 4.4 mm (n = 3), antenna length 3.2, 3.3 mm (n = 2) in male, forewing length 4.2 – 5.2 mm (n = 5), antenna length 3.3 – 3.7 mm (n = 3) in female. For more morphological information, see Davis and Mendel (2013).	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
921A8CE763825658B11EA9E18013658C.taxon	distribution	Distribution. Japan (Minamidaitohjima Is., Nakodojima Is., Chichijima Is., Hahajima Is.), Pantropical, Australia, and South America (Clarke 1986; Hirowatari et al. 2012; Davis and Mendel 2013).	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
8150D0A44D5455DF943488C26C6D8876.taxon	description	Figs 7, 8, 17, 18, 31, 39, 47, 51, 52 Japanese name: Chichijima tsumaorega	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
8150D0A44D5455DF943488C26C6D8876.taxon	diagnosis	Diagnosis. The new species is externally similar to Erechthias simulans (Butler, 1882) from the tropical Pacific and E. dissimulans (Meyrick, 1915 c) from Sri Lanka, but can be distinguished by the following characteristics: the basal area of the forewing is fully black in E. mirabilis sp. nov. (only black spots in E. simulans and E. dissimulans). The male and female genitalia are also similar to those of E. simulans but they can be distinguished by the following characteristics: the valva is broad, oval, and slightly concave at the costal margin in the male genitalia (the valva is rounded, dagger-shaped, and bulged at the middle of the costal margin in E. simulans); the ostium is smaller and weakly concave; and the anterior 1 / 2 of the signum is sharp and curved in the female genitalia (curved but rounded in E. simulans).	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
8150D0A44D5455DF943488C26C6D8876.taxon	description	Description. Adults. Male. (Figs 7, 17) Forewing length 6.8 mm, antenna length 6.0 mm in holotype. Forewing length 6.7, 7.8 mm (n = 2), antenna length 5.0, 5.7 mm (n = 2) in paratypes. Head. Frons and vertex whitish cream. Labial palpus whitish cream, first palpomere covered with black scales; second palpomere with robust brush hairs, outer surface black, with a few black bristles. Antenna filiform, notch present at base; scape whitish cream; flagellum black, gradually whiter toward tip. Thorax. Anterior 3 / 4 of mesonotum whitish cream, posterior 1 / 4 black. Tegula whitish cream, basally black. Foreleg black to dark gray, outer surface of tibia and basal 1 / 2 of tarsus cream white. Midleg black to dark gray, each tarsomere with cream band at distal end. Hindleg fuscous gray, tibia bearing with long hairs, basal 1 / 3 and subapical aera of tarsus black. Forewing venation with Sc, R 1 – 3 and R 4 + 5, M 1 and M 2 + 3, CuA 1 – 2 and CuP, 1 A + 2 A present; R 1 from basal 3 / 7 of discal cell to apical 1 / 3 of costa; 1 A fused with 2 A from basal 2 / 5 of wing to end; chorda weak. Apex of forewing weakly upturned. Forewing ground color white, with black pattern; basal 1 / 6 black; middle of anterior 1 / 2 with a large irregularly U-shaped spot; apex with a rectangular black spot; middle of dorsum with a small wedge-shaped black spot; tornus with one black scale; cilia white, middle of marginal area with a gray spot. Hindwing venation with Sc + R 1, Rs, M 1 and M 2 + 3 CuA 1 – 2 and CuP, 1 A + 2 A present; 1 A + 2 A strongly angled; frenulum a single slender bristle. Hindwing and cilia fuscous cream. Abdomen. Covered with fuscous cream scales. Female. (Figs 8, 18, 47) Forewing length 6.5 – 7.4 mm (n = 4), antenna length 5.4 mm (n = 1) in paratypes. Almost same as male except for antenna and forewing; notch absent in antenna; apex of forewing slightly upturned; chorda well-developed; forewing ground color black, with four white spots: basal 1 / 5, apical 1 / 3 of costa, tornus, and apex. Male genitalia. (Fig. 31) Uncus thick, short, a pair of membranous lobes, apical corner with a few bristles. Tegumen strongly sclerotized, fused with vinculum, formed into broad ring. Vinculum robust, ~ 1.5 × length of tegumen; saccus broad triangular. Valva broad oval, roughly covered with bristles; costa broad with short, dense spines, basicostal process absent; basal 2 / 3 of ventral margin almost straight, gently curved toward apex. Juxta a strongly sclerotized pouch. Phallus cylindrical, almost same length of valva; vesica with a robust needle-like cornutus and many small spicular cornuti. Female genitalia. (Fig. 39) Ovipositor 2.5 × length of segment VII, papillae analis with short bristles; apophysis anterioris thick, ~ 1 / 2 length of apophysis posterioris. Segment VIII long, posterior margin with ~ 15 bristles; tergum VIII with stout dorsal rami fusing with apophysis anterioris; ostium elongated piriform with dense small spines, located at anterior 1 / 2 of sternum VIII. Ductus bursae tubular, 1.4 × length of corpus bursae, anterior 1 / 6 broad, wrinkled and curved toward corpus bursae. Corpus bursae oval; signum large flatten claw-shaped with robust rounded rectangular projection.	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
8150D0A44D5455DF943488C26C6D8876.taxon	distribution	Distribution. Japan (Chichijima Is., Anijima Is.).	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
8150D0A44D5455DF943488C26C6D8876.taxon	etymology	Etymology. The name of this species is derived from the Latin mirabilis, because this species is the most marvelous Erechthias to occur in Japan.	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
1C25F718E8535C4CA2AB23B625190FA2.taxon	description	Figs 9, 10, 19, 20, 32, 40, 48, 49, 51, 52 Japanese name: Torinosu-tsumaorega	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
1C25F718E8535C4CA2AB23B625190FA2.taxon	diagnosis	Diagnosis. The new species is similar to E. aspera (Clarke, 1986), E. celestra (Clarke, 1986), and E. incongrua (Clarke, 1986), but can be distinguished by the following characteristics: the forewing has three black to brown spots at the costal margin, and the ground color is ocherous and clearly paler than that of other species in females; the valva is broad and the saccus is short in the male genitalia (the valva small and the saccus is relatively long in other related species). The female genitalia of this species are also similar to those of E. trigonosema, but it can be distinguished by the following characteristics: the ductus bursae lacks sclerotization, the corpus bursae is weakly sclerotized at the posterior 1 / 5 (the ductus bursae sclerotized and with dense small spines, and the corpus bursae is weakly sclerotized at the posterior 2 / 5 in E. trigonosema).	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
1C25F718E8535C4CA2AB23B625190FA2.taxon	description	Description. Adults. Male. (Figs 9, 19, 48) Forewing length 5.5 mm, antenna length 5.0 mm in holotype. Forewing length 4.2 – 5.8 mm (n = 9), antenna length 3.9 – 4.4 (n = 4) in paratypes. Head. Vertex ocherous white, frons cream. Labial palpus cream; second palpomere with robust brush, outer surface dark brown, with few black bristles; Antenna filiform, brown, notch absent; flagellum with seven or eight cream bands. Thorax. Mesonotum and tegula dark brown. Foreleg dark gray, inner surface ocherous gray. Midleg cream; outer surface of tibia, and basal 1 / 3, middle, and subapical area of tarsus dark gray. Hindleg cream, outer surface dark gray; tibia bearing with long hairs; distal end of each tarsomere with cream ring. Forewing venation with Sc, R 1 – 3 and R 4 + 5, M 1 and M 2 + 3, CuA 1 – 2 and CuP, 1 A + 2 A present; R 1 from basal 1 / 3 of discal cell to apical 2 / 5 of costa; 1 A fused with 2 A from basal 1 / 3 to end; chorda well developed. Apex of forewing upturned. Forewing ground color brown, with black and ocherous white spots; costal margin with three trapezoidal black spots at base, basal 1 / 3 and 2 / 3; tornus with a small narrow ocherous white spot; apex with a black dot bordered by ocherous white lines on the front and back and formed into eye spot; cilia black at apex, cream at subapical area; outer margin fuscous brown. Hindwing venation with Sc + R 1, Rs, M 1 – 3, CuA 1 – 2 and CuP, 1 A + 2 A, 3 A present; M 1 and M 2 stalked at basal 1 / 5 of wing; frenulum a single slender bristle. Hindwing gray, cilia gray. Abdomen. Covered with gray scales. Female. (Figs 10, 20, 49) Forewing length 4.7 – 5.7 (n = 6) antenna length 3.3 – 3.8 mm (n = 3) in paratypes. Almost same as male but body ground color relatively light; head ocherous white, frons cream; thorax and tegula ocherous white, brown basally; forewing ground color ocherous, with dark brown spots. Male genitalia. (Fig. 32) Uncus broad, a pair of membranous lobes, apical area with a few bristles. Tegumen fused with vinculum, formed into ring. Vinculum ~ 2 × length of tegumen; saccus narrow, semicircular. Valva broad blade-shaped; ventral margin gently curved toward apex with long bristles; basicostal process absent, costa convex, with short dense spines. Juxta is a strongly sclerotized pouch. Phallus thick, cylindrical, weakly curved, 1.2 × length of valva; vesica with one pair of claw-shaped cornuti and with many small spicular cornuti. Female genitalia. (Fig. 40) Ovipositor 2.5 × length of segment VIII; papillae analis sharp, with a few bristles; apophysis anterioris relatively thick, 0.7 × length of apophysis posterioris. Segment VIII broad rectangular, posterior margin with ~ 20 bristles; tergum VIII with dorsal rami fused with apophysis anterioris; ostium sclerotized funnel-shaped with dense small spines, located at anterior margin of sternum VIII. Ductus bursae tubular, 1.5 × length of corpus bursae, gently broad toward corpus bursae. Corpus bursae oval, posterior 1 / 4 slightly twisted and sclerotized; signum absent.	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
1C25F718E8535C4CA2AB23B625190FA2.taxon	distribution	Distribution. Japan (Mukojima Is., Nakodojima Is., Ototojima Is., Anijima Is., Nishijima Is., Chichijima Is., Hahajima Is., Mukohjima Is., Meijima Is., Hirajima Is.).	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
1C25F718E8535C4CA2AB23B625190FA2.taxon	etymology	Etymology. The name of the new species is derived from the Latin nidum (nests) + incola (to inhabit), referring to where this species was first discovered, i. e., in the nest of Puffinus pacificus.	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
A06ECA4ABECD507895012C3D6A9C874B.taxon	description	Figs 11, 12, 21, 22, 33, 41, 51, 52 Japanese name: Medamamon-tsumaorega	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
A06ECA4ABECD507895012C3D6A9C874B.taxon	diagnosis	Diagnosis. The new species is similar to E. polionota Turner, 1923, E. phileris (Meyrick, 1893) and E. zebrina (Butler, 1881) but can be distinguished by the following characteristics: the forewing has a falciform cream spot at the middle of the costal margin. The genitalia are also similar to those of E. zebrina, but can be distinguished by the following characteristics: the valva is narrow tongue-shaped, the dorsal margin has a finger-shaped lobe in the male genitalia (the valva curved and additional lobe absent in E. zebrina), the signum is large and hook-shaped, and the posterior 1 / 3 has a twisted trapezoidal lobe (curved spatula, posterior side with small short rod-shaped lobe in E. zebrina) in the female genitalia.	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
A06ECA4ABECD507895012C3D6A9C874B.taxon	description	Description. Adult. Male (Figs 11, 21) Forewing length 3.5 mm, antenna length 2.7 mm in holotype. Forewing length 3.1 – 3.3 mm (n = 3) in paratypes. Head. Vertex fuscous brown, frons brown. Labial palpus cream, outer margin of second palpomere covered with dark brown scales, with a few black bristles. Antenna filiform, notch absent; scape fuscous ocherous, simple fusiform; pedicel and flagellomere dark gray. Thorax. Mesonotum and tegula black, apex of each scale white. Foreleg dark gray, inner surface ocherous; middle and distal end of tibia, and distal end of each tarsomere with cream bands. Midleg cream; proximal end, basal 1 / 3, 2 / 3 of tibia, and distal end of each tarsomere with cream bands. Hindleg cream, tibia bearing long ocherous gray hairs; distal end of each tarsomere with cream bands. Forewing venation with Sc, R 1 – 5, M 1 and M 2 + 3, CuA 1 – 2 and CuP, 1 A + 2 A present; R 1 from middle of discal cell to middle of costa; R 4 and R 5 stalked from middle 1 A fused with 2 A from basal 2 / 5 of wing to end. Apex of forewing weakly upturned. Forewing ground color black with cream and dark silver spots, posterior 1 / 2 scattered with cream scales; middle of costal margin with falciform cream spot; narrow silver line elongated from apical 1 / 3 of costa to eye spot; apical area with a silver and black eye spot, anteriorly with a large triangle, cream spot; cilia outer margin with two black line; underside cream; apex with small cream spot. Hindwing venation with Sc + R 1, Rs, M 1 – 3, CuA 1 – 2 and CuP, 1 A + 2 A, 3 A present; M 1 and M 2 stalked at near apex; frenulum a single slender bristle. Hindwing fuscous gray, basal 1 / 4 of costa with ocherous scales; cilia fuscous gray. Abdomen. Covered with black scales. Female (Figs 12, 22) Forewing length 4.1, 4.3 mm (n = 2), antenna length 3.3 mm (n = 1) in paratypes. Almost same as male but antenna relatively narrow, and hindwing without ocherous scales at base. Male genitalia. (Fig. 33) Uncus simple, short, a pair of membranous lobes, apex with few bristles. Tegumen broad, fused with vinculum. Vinculum narrow, long; saccus slender, elongated triangle. Valva narrow, spatulate with rough hairs at ventral and costa; ventral margin almost straight; basicostal process elongated narrow finger-shaped, apex with short dense spines. Juxta strongly sclerotized, long trapezoid. Phallus narrow cylindrical, curved, 2.1 × length of valva; apex with one carina, comprising seven or eight small teeth; vesica with spicular cornuti. Female genitalia. (Fig. 41) Ovipositor 4 × length of segment VIII; papillae analis sharp, roughly with short bristles; apophysis posterioris 1.5 × length of apophysis anterioris. Segment VIII rounded long trapezoidal, posterior margin slightly concave and with 8 – 10 setae; tergum VIII with dorsal rami connected to apophysis anterioris; ostium located at anterior margin of sternum VIII; antrum funnel-shaped, weakly sclerotized. Ductus bursae thick tubular, 1.5 × length of corpus bursae, anterior 3 / 4 sclerotized, gently broad toward corpus bursae. Corpus bursae irregularly oval; signum large sickle-shaped with a twisted trapezoidal lobe.	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
A06ECA4ABECD507895012C3D6A9C874B.taxon	distribution	Distribution. Japan (Anijima Is., Chichijima Is., Hahajima Is.).	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
A06ECA4ABECD507895012C3D6A9C874B.taxon	etymology	Etymology. The name of the new species is derived from the Latin oculus (eye), which refers to the presence of a large eye spot on the forewing. The eye spot of this species appears larger than those of other Japanese Erechthias species because of the presence of a cream triangular spot (resembling a sclera).	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
1E0057CA220F5D049980F9512694178B.taxon	description	Figs 3, 28, 36, 45, 51, 52 Japanese name: Shima-chibi-tsumaorega	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
1E0057CA220F5D049980F9512694178B.taxon	diagnosis	Diagnosis. This species is externally similar to E. polionota Turner, 1923 and E. phileris (Meyrick, 1893), but it can be distinguished by its forewing pattern, the costal margin has five cream lines at basal 1 / 8, 1 / 3, 2 / 3, subapical area, and apex in E. zebrina (the costal margin has four white to cream lines in E. polionota and E. phileris). The male genitalia of E. zebrina are also similar to those of E. cyanosticta (Lower, 1916) but can be distinguished by the slender uncus and elongated saccus (the uncus is broader, and the saccus is short and tongue-shaped in E. cyanosticta). The female genitalia are also similar to those of E. darwini Robinson, 1983 and E. minuscula but can be distinguished by a relatively large and broad signum (large but not curved in E. darwini, clearly small in E. minuscula).	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
1E0057CA220F5D049980F9512694178B.taxon	description	Additional description. Measurements. Forewing length 3.5 – 4.1 mm (n = 6) in males, 3.9 mm (n = 1) in female. Antenna length 2.9 – 3.6 mm (n = 3) in male. For more morphological information, see Clarke (1971) and Zimmerman (1978).	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
1E0057CA220F5D049980F9512694178B.taxon	distribution	Distribution. Japan (Honshu, Yakushima Is., Amamiohshima Is., Ishigakijima Is., Chichijima Is., Hahajima Is.); Pantropical: China, Ceylon (Sri Lanka), India, Java, Sumatra, Malaysia, Bali, Borneo, Hawaii, Rapa, Fiji, Society islands, Marquesas Islands, Caroline Islands, Australia, Mexico, Saint Thomas, Puerto Rico, Panama Canal Zone, Cuba, Jamaica, Brazil, Sierra Leone, Congo, Cameroun, Madagascar, Seychelles, Mauritius (Zimmerman 1978; Clarke 1986; Robinson and Nielsen 1993; Robinson et al. 1994; Sakai 2013; Shimizu 2020).	en	Park, Jinhyeong, Yagi, Sadahisa, Hirowatari, Toshiya (2025): Taxonomic study of the genus Erechthias (Lepidoptera, Tineidae) from the Ogasawara Islands, with two new records and four new species. ZooKeys 1250: 13-48, DOI: 10.3897/zookeys.1250.154226
