A taxonomic review of Korean species of the genus Philhygra Mulsant & Rey (Coleoptera: Staphylinidae: Aleocharinae) Author Lee, Seung-Gyu Author Ahn, Kee-Jeong text Zootaxa 2012 3483 58 70 journal article 10.5281/zenodo.210277 dbd00d54-cf11-4974-91bf-badee2e4ab2e 1175-5326 210277 83E9363D-0D2C-4742-B92B-A66774867517 Philhygra palustris ( Kiesenwetter, 1844 ) ( Figs. 1 C, 4A–H) Homalota palustris Kiesenwetter, 1844 : 318 . Microdota ( Philhygra ) palustris : Mulsant & Rey, 1873b : 309 (as valid species). Atheta ( Philhygra ) palustris : Fenyes, 1920 : 201 ; Yosii & Sawada, 1976 : 29 ; Paśnik, 2001 : 206 ; (as valid species). See Gusarov (2003) , Smetana (2004) and Gouix & Klimaszewski (2007) for more synonymies. Description. Body length 2.2–2.9 mm . Body ( Fig. 1 C) relatively narrow and elongate in dorsal aspect. Head almost black; antennae, pronotum and elytra dark brown, elytra paler than pronotum; abdominal tergites II–V dark brown and VI–VIII brownish black; legs yellowish brown. Head surface glossy, with fine punctation, distance between punctures 1–3 times longer than their diameter; head about as wide as long, widest at across eyes; eyes slightly prominent, about 1.25 times longer than tempora; antennomeres 4–5 slightly elongate, 6–10 about as long as wide, 11 about as long as preceding two combined ( Fig. 4 A); labrum ( Fig. 4 B) emarginate in anterior margin; asensillum relatively long; medial pseudopores absent, lateral pseudopores present in prementum. Pronotum transverse, approximately 1.2 times as wide as long, widest at apical third; pubescence in midline directed anteriorly; punctation finer than on head, distance between punctures 1–2 times longer than their diameter; metanotal scutum with one long setae and about 3–6 short setae on each side of midline; mesoventral process elongate and slightly pointed at apex, longer than isthmus; metaventral process little shorter than isthmus ( Fig. 4 C). Elytron approximately 1.8 times as long as wide; postero-lateral margin nearly straight; flabellum composed of about 14 setae. Abdominal tergites glossy, with fine punctation, distance between punctures 0.5–1 times longer than their diameter; male tergite VIII ( Fig. 4 D) with 4 macrosetae on each side of midline, posterior margin emarginate; male sternite VIII ( Fig. 4 E) truncate in posterior margin, with conspicuously long marginal setae; female tergite VIII similar to male tergite VIII; posterior margin of female sternite VIII convex, more or less round, with moderately long marginal setae. Aedeagus as in Figs. 4 F–H. FIGURE 4. Philhygra palustris . A, antenna, dorsal aspect; B, labrum, dorsal aspect; C, meso- and metaventrites, ventral aspect; D, male tergite VIII, dorsal aspect; E, posterior margin of male sternite VIII, ventral aspect; F, median lobe, lateral aspect; G, median lobe, ventral aspect; H, paramere, lateral aspect. Scale bars 0.1 mm. Material examined. KOREA : Chungnam prov.: 4 ex., Asan-si, Shinchang-myeon, Gangcheong-ri, N36°50′ 0 8.9″ E126°56′ 15.4″ 155 m , 6 vi 2006 , SJ Park, DH Lee, decaying vegetables; Gangwon prov.: 15 ex., Pyeongchang-gun, Bangrim-myeon, Mt. Baekduksan, 12 vii 2001 , KJ Ahn, SJ Park, decaying vegetables; Gyeongbuk prov.: 20 ex., Bonghwa-gun, Murya-myeon, Mt. Seondalsan, 23–25 vii 1998 , KL You, HJ Lim, FIT; Jeju prov.: 9 ex., Seoguipo-si, Hawon-dong, Seoguipo natural recreation forest, N33°18′ 36″ E126°28′ 9.2″ 665 m , 31 v 2007 , DH Lee, YH Kim, leaf litter; Jeonbuk prov.: 17 ex., Muju-gun, Seolcheon-myeon, Mt. Deogyusan, 22–24 v 1998 , KL You, HJ Lim; Jeonnam prov.: 7 ex., Hadong-gun, Hwagye-myeon, Mt. Jirisan, Ssanggyesa, 25 v 2000 , US Hwang, sifting; 15 ex., Gurye-gun, Toji-myeon, Mt. Jirisan, Piagol, 24–26 v 2000 , HK Choi, JH Song, MS Kim, baited trap. Distribution. Canary Islands, China , Europe, Japan , Korea , Madeira Archipelago, Mongolia , Morocco and Russia (Siberia) ( Smetana 2004 ). Remarks. This species is similar to P . yokkaichiana , but can be distinguished by the characters provided in the key and the shape and structure of aedeagus.