Aleochara (Xenochara) tristis Gravenhorst

Park, Jong-Seok & Ahn, Kee-Jeong, 2010, Korean species of Aleochara Gravenhorst subgenus Xenochara Mulsant & Rey (Coleoptera, Staphylinidae, Aleocharinae), ZooKeys 60, pp. 21-36 : 26-28

Aleochara (Xenochara) tristis Gravenhorst Fig. 5

Aleochara tristis Gravenhorst 1806: 170; Mulsant and Rey 1874: 72; Fowler 1888: 14; Ganglbauer 1895: 34; Fenyes 1920: 405; Bernhauer and Scheerpeltz 1926: 784; Portevin 1929: 237; Palm 1972: 428; Lohse 1974: 296; Klimaszewski 1984: 37; Welch 1997: 26; Smetana 2004: 361.

Staphylinus bipunctata Olivier 1795: 31.

Staphylinus geometrica Schrank 1798: 642.

Aleochara flavomaculata Ménétriés 1832: 147.

Aleochara bimaculata Stephens 1832: 158.

Aleochara nigripes Miller 1853: 27.

Aleochara erectesetosa Jekel 1873: 41.

Baryodma nigripennis Mulsant and Rey 1874: 76.

Redescription.

Length 3.7-6.4 mm. Body black; antenna and legs reddish black; elytra yellow to yellowish brown and bicolored. Antennomeres 1-3 elongate, and 4 - 10 transverse. Mouthparts. Labrum transverse, bearing approximately 9 small, setae, and approximately 17 long setae, a-seta, b-seta, and pores resent; b-seta acute (arrow indicates b-seta, Fig. 5b). Labium with pseudopores in median area; about 3 real pores and pseudopores present in lateral area; a pair of distal setae present (arrow indicates distal seta, Fig. 5c). Ligula with approximately 3 pairs of small setae apically (Fig. 5c). Labial palpi with large a-, b-, and f-seta of 12 setae present ( a–h, α–δ); β-seta close to twin pores (tp); c- and d-seta same level (Fig. 5d). Mentum transverse, bearing 4 pairs of main setae (b, u, v, w), and 13 extra setae, and pores present (Fig. 5e). Thorax. Elytra with round latero-posterior margin. Abdomen. Abdominal tergite VIII with many short setae and pores; posterior margin emarginate (Fig. 5f). Abdominal sternite VIII with many short setae and pores; apical margin rounded (Fig. 5g, h). Genitalia. Median lobe with coiled flagellum (arrow, Figs 5j and k). Paramere with fovea in hinge zone (arrow, Fig. 5i). Spermathecal duct coiled (Fig. 5l).

Material examined

1, Russia, Tadshikistan, 1981, Duechanbe env, on light, 16-18.VI.1981, K. Majer; 36, Russia, Tadshikistan, Umg. Duechanbe env, 800-1200m, 4-14.IX.1983, U. Arnold.

Distribution.

Korea, Asia, Europe, North Africa, North America (see Smetana, 2004: 361).

Remarks.

See Klimaszewski (1984: 39) for reason why the older names Staphylinus bipunctata Olivier or Staphylinus geometrica Schrank do not have priority. We used Russian specimens for the redescription.

See Klimaszewski (1984) for additional synonymies and references.