Philhygra sparsa ( Bernhauer, 1907 )

Lee, Seung-Gyu & Ahn, Kee-Jeong, 2012, A taxonomic review of Korean species of the genus Philhygra Mulsant & Rey (Coleoptera: Staphylinidae: Aleocharinae), Zootaxa 3483, pp. 58-70 : 66

Philhygra sparsa ( Bernhauer, 1907)

( Figs. 1 F, 7A–H)

Atheta (Metaxya) sparsa Bernhauer, 1907: 410 .

Atheta (Metaxya) lucidula Cameron, 1933: 211 (as valid species).

Atheta (Hygroecia) sparsa: Brundin,1944: 183 (as valid species).

Atheta (Philhygra) lucidula: Sawada, 1977: 180 (as synonym of Atheta sparsa ). Atheta (Philhygra) sparsa: Sawada, 1977: 180 ; Smetana, 2004: 392 (as valid species).

Description. Body length about 3.0 mm. Body ( Fig. 1 F) moderately elongate. Head almost black; antennomeres 2–11, pronotum and abdomen brown to dark brown; scape, elytra and legs yellowish brown or pale brown. Head surface glossy, with fine punctation, distance between punctures 1.5–3 times longer than their diameter; head approximately 1.1 times wider than long, widest at across eyes; eyes prominent, about 1.3 times longer than tempora; antennomeres 4–8 slightly elongate, 9–10 about as long as wide, 11 longest, about as long as preceding two combined ( Fig. 7 A); labrum emarginate in anterior margin; a-sensillum relatively short; medial and lateral pseudopores present in prementum. Pronotum ( Fig. 7 B) subquadrate, approximately 1.1 times as wide as long, widest at middle; pubescence in midline directed anteriorly in apical half, posteriorly in basal half; distance between punctures 2–3 times longer than their diameter; metanotal scutum with one long seta and about 4–5 relatively short setae on each side of midline; mesoventral process elongate and more or less pointed at apex, longer than metaventral process; length ratio of mesoventral process, isthmus and metaventral process 5:2:2 ( Fig. 7 C). Elytron approximately 1.65 times as long as wide, postero-lateral margin nearly straight; flabellum composed of about 10–12 setae. Abdominal tergites glossy, with fine punctation, distance between punctures 0.5–1.0 times longer than their diameter; male tergite VIII ( Fig. 7 D) with 4 macrosetae on each side of midline, posterior margin slightly emarginate; male sternite VIII ( Fig. 7 E) more or less round in posterior margin with 8 macrosetae on each side of midline; posterior margin of female tergite VIII weakly emarginate at middle; posterior margin of female sternite VIII broadly round with conspicuous marginal setae. Aedeagus as in Figs. 7 F–H.

Material examined. KOREA: Chungnam prov.: 2 ex., Gongju-si, Banpo-myeon, Hakbong-ri, Mt. Gyeryongsan, 1 vi 2004, SM Choi, JS Park, KM Yang, SJ Park, garbage; Gangwon prov.: 11 ex., Pyeongchanggun, Bangrim-myeon, Mt. Baekduksan, 12 vii 2001, KJ Ahn, SJ Park, decaying vegetables; Gyeongbuk prov.: 32 ex., Bonghwa-gun, Murya-myeon, Mt. Seondalsan, 23–25 vii 1998, KL You, HJ Lim, FIT; Gyeongnam prov.: 4 ex., Sacheon-si, Guam-eup, Guam-ri, 16 v 1986, KS Lee; 4 ex., Ulsan-si, Mugeo-dong, 31 v 1985, GS Jang, YS Kim; Jeonbuk prov.: 10 ex., Muju-gun, Anseong-myeon, Tonghan, 5 vi 1988, GS Jang; Jeonnam prov.: 3 ex., Gurye-gun, Toji-myeon, Mt. Jirisan, Piagol, 24–26 v 2000, HK Choi, JH Song, MS Kim, baited trap.

Distribution. Korea and Japan ( Smetana 2004).

Figures

FIGURE 1. Habitus of Philhygra. A, P. elongatula, 3.4 mm; B, P. homoeopyga, 3.6 mm; C, P. palustris, 2.9 mm; D, P. polaris, 4.0 mm; E, P. pseudoelongatula, 3.0 mm; F, P. sparsa, 3.1 mm; G, P. yokkaichiana 2.9 mm.

FIGURE 7. Philhygra sparsa. A, antenna, dorsal aspect; B, pronotum, dorsal aspect; C, meso- and metaventrites, ventral aspect; D, male tergite VIII, dorsal aspect; E, male sternite VIII, ventral aspect; F, median lobe, lateral aspect; G, median lobe, ventral aspect; H, paramere, lateral aspect. Scale bars 0.1 mm.