Philhygra polaris ( Bernhauer, 1901 )

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 : 64-65

Philhygra polaris ( Bernhauer, 1901)

( Figs. 1 D, 5A–B)

Atheta (Metaxya) polaris Bernhauer, 1901: 536 .

Atheta (Hygroecia) polaris: Brundin, 1944: 199 (as valid species). Philhygra polaris: Lohse et al. 1990: 168 (as valid species).

Atheta (Philhygra) polaris: Paśnik, 2001: 206 ; Smetana, 2004: 392 (as valid species). Philhygra polaris: Gouix & Klimaszewski, 2007: 95 (as valid species).

Description. Body length 4.0– 4.5 mm. Body ( Fig. 1 D) robust, generally dark brown to black; antennae and legs paler; elytra reddish brown to dark brown. Head narrower than pronotum; eyes prominent, about as long as tempora; antennae long and slender, antennomeres 4–10 slightly elongate, 11 about as long as preceding two combined; labrum emarginate in anterior margin; a-sensillum relatively long and setaceous; medial pseudopores absent, lateral pseudopores present in prementum. Pronotum slightly transverse, approximately 1.15–1.20 times as wide as long, widest in apical third; pubescence in midline directed anteriorly. Elytron approximately 1.65 times as long as wide; postero-lateral margin very weakly sinuate. Male tergite VIII with 7 macrosetae on each side of midline, posterior margin subtruncate; male sternite VIII with 9 macrosetae on each side of midline, posterior margin subtruncate, weakly emarginate at middle; posterior margin of female tergite VIII similar to male tergite VIII; posterior margin of female sternite VIII broadly round. Aedeagus as in Figs. 5 A–B.

Material examined. KOREA: 3 ex., Jonggak-san Mts., 29 v 1974, ISEA. Distribution. Europe, Korea, Nearctic Region and Russia (East Siberia, West Siberia, Far East) ( Smetana 2004).

Remarks. No specimens were available for dissection. Therefore, we could not describe the mouthparts in detail.

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 5. Philhygra polaris. A, median lobe, lateral aspect; B, paramere, lateral aspect. Scale bars 0.1 mm.