Philhygra elongatula ( Gravenhorst, 1802 )

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 : 59-61

Philhygra elongatula ( Gravenhorst, 1802)

( Figs. 1 A, 2A–C)

Aleochara elongatula Gravenhorst, 1802: 79 .

Aleochara teres Gyllenhal, 1810: 390 (as valid species).

Aleochara microcephala Stephens, 1832: 138 (as valid species).

Metaxya impressifrons Mulsant & Rey, 1875: 168 (as valid species).

Atheta (Metaxya) subpolaris Fenyes, 1909: 423 (as valid species).

Metaxya deceptor Casey, 1910: 79 (as valid species).

Atheta elongatula: Everts, 1922: 101 (as valid species).

Aleochara teres: Everts, 1922: 101 (as synonym of Atheta elongatula ).

Aleochara microcephala: Everts, 1922: 101 (as synonym of Atheta elongatula ). Atheta (Metaxya) wankaiana Bernhauer, 1927: 98 (as valid species).

Atheta (Metaxya) transsilvanica Benick, 1943: 6 (as valid species).

Atheta (Hygroecia) elongatula: Brundin, 1944: 225 (as valid species).

Atheta (Philhygra) elongatula: Benick & Lohse, 1974: 145 ; Paśnik, 2001: 206; Smetana, 2004: 391 (as valid species). Metaxya deceptor: Gusarov, 2003 (Internet site) (as synonym of Philhygra subpolaris ). Philhygra subpolaris: Gusarov, 2003 (Internet site) (as valid species).

Metaxya impressifrons: Smetana, 2004: 391 (as synonym of Atheta elongatula ). Atheta (Metaxya) subpolaris: Smetana, 2004: 391 (as synonym of Atheta elongatula ). Atheta (Metaxya) wankaiana: Smetana, 2004: 391 (as synonym of Atheta elongatula ). Atheta (Philhygra) transsilvanica: Smetana, 2004: 393 (as valid species). Atheta (Metaxya) transsilvanica: Ádám, 2008: 140 (as synonym of Atheta elongatula ).

Description. Body length 2.8–3.8 mm. Body ( Fig. 1 A) generally dark brown; antennae and pronotum paler; legs yellowish 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; anterior margin of labrum emarginate; a-sensillum relatively long; prementum with medial pseudopores absent and lateral pseudopores present. Pronotum slightly transverse, approximately 1.15–1.20 times as wide as long, widest in apical third; pubescence in midline directed anteriorly. Elytron approximately 1.85 times longer than wide, postero-lateral margin very weakly sinuate. Male tergite VIII with 5 macrosetae on each side of midline, posterior margin truncate; male sternite VIII with 7 macrosetae on each side of midline, posterior margin broadly round; posterior margin of female tergite VIII emarginate; posterior margin of female sternite VIII round. Aedeagus as in Figs. 2 A–C.

Material examined. KOREA: 4 ex., Phjongjang, 16 v 1974, ISEA; Gangwon prov.: 3 ex., Kymgang-san Mts., 16–18 vi 1974, ISEA

Distribution. Europe, Iran, Korea, North Africa ( Algeria, Morocco, Tunisia) and Russia (East Siberia, West Siberia) ( 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 2. Philhygra elongatula. A, median lobe, lateral aspect; B, median lobe, ventral aspect; C, paramere, lateral aspect. Scale bars 0.1 mm.