Anthobium jaegeri Shavrin & Smetana, 2019

Shavrin, Alexey V. & Smetana, Aleš, 2019, A revision of Eastern Palaearctic Anthobium Leach, 1819 (Coleoptera: Staphylinidae: Omaliinae: Anthophagini). III. Consanguineum, crassum and reflexum groups, and an additional species of the fusculum group, Zootaxa 4688 (4), pp. 451-482 : 459-460

Anthobium jaegeri Shavrin & Smetana , sp.n.

( Figs. 2 , 53–55 )

Type material examined: Holotype ♂ [dissected]: ‘ Nepal, Kali Gandaki Tal, | westl. oberh. Lete , degr. | Rhododen- dron Wald , 2900 m, | 19.V.2002, leg. [O.] Jäger, BG | N28°37’24’’ E 83°35’38’’’ <rectangular label, printed>, ‘HO- LOTYPE | Anthobium | jaegeri sp.n. | Shavrin A.V. & Smetana A. 2019’ <red rectangulat label, printed> ( SNSD).

Description. Measurements: HW: 0.57; HL: 0.37; AL: 1.18; OL: 0.15; PL: 0.55; PW: 0.87; ESL: 1.24; EW: 1.18; AW: 0.87; MTbL: 0.62; MTrL: 0.30 (MTrL 1–4: 0.20; MTrL 5: 0.10); AedL: 0.50; TL: 2.76.

Head brown; apical and preapical segment of maxillary palp, pronotum, elytra and abdomen reddish-brown, with somewhat paler apical portions of pronotum, elytra and apical tergites; mouthparts, antennomeres and legs yellow (antennomeres 8–11 somewhat darker). Head with fine, deep punctation, denser on infraorbital ridges, with paired transverse impunctated portions in middle between eyes; middle part of neck with very sparse, irregular punctation; pronotum with dense punctation, markedly larger than that on head, markedly smaller and sparser on mediobasal third, and sparser laterally; punctation of elytra as that on pronotum, but markedly sparser, finer and denser in parascutellar portion, finer along suture, each elytron bearing six very vague and tangled longitudinal rows of punctures; abdominal tergites without visible punctures. Habitus as in Fig. 2 .

Head one and half times as wide as long, with slightly elevated middle portion without impressions, with very indistinct, short, moderately deep grooves in front of ocelli and narrow impression between ocelli; postocular ridge acute and markedly protruded; anterior portion between antennal insertion and anterior margin of eye with small, indistinct semicircular notch. Length × width of antennomeres: 1: 0.12 × 0.05; 2: 0.11 × 0.03; 3: 0.10 × 0.02; 4–6: 0.11 × 0.03; 7: 0.11 × 0.04; 8: 0.10 × 0.04; 9: 0.10 × 0.05; 10: 0.08 × 0.05; 11: 0.13 × 0.05.

Pronotum subrectangular, 1.5 times as wide as long, widest in anterior third; middle portion widely elevated, with indistinct, semioval impression on mediobasal third, and with very deep, oval pits in about middle.

Elytra more than twice as long as pronotum, reaching apical margin of abdominal tergite V; surface of each elytron with indistinct, irregular longitudinal elevations between punctures on medioapical third and with indistinct longitudinal elevation in middle between suture and first row of punctures.

Male. Apical margins of abdominal tergite VIII and sternite VIII slightly sinuate. Aedeagus ( Fig. 53 ) moderately wide; parameres narrow, straight in apical portion, markedly exceeding apex of median lobe, with two pairs of apical setae; internal sac wide, moderately short. Aedeagus laterally as in Fig. 54 .

Female unknown.

Comparative notes. Anthobium jaegeri sp.n. differs from the similar A. consanguineum sp.n. by the shape of subrectangular pronotum, and by the details of both internal and external characters of the aedeagus.

Distribution. The species is known only from the type locality in central Nepal ( Fig. 55 ).

Bionomics. The holotype was collected in Rhododendron forest at elevation 2900 m a.s.l.

Etymology. Eponymic, the species is named to honor our colleague Olaf Jäger (Dresden, Germany), the collector of the holotype.

Figures

FIGURE 55. Distribution of Anthobium consanguineum (black circles) in China and A. jaegeri (black square) in Nepal.

FIGURES 1–2. Habitus of species of Anthobium consanguineum-group: 1—A. consanguineum (holotype), 2—A. jaegeri (holotype). Scale bar: 1.0 mm.

FIGURES 51–54. Aedeagus of Anthobium consanguineum (51–52: paratype) and A. jaegeri (53–54: holotype): 51, 53—parameral view, 52, 54—lateral view. Scale bar: 0.1 mm.