Doryloxenus tangliangi, Song, Xiao-Bin & Li, Li-Zhen, 2014

Song, Xiao-Bin & Li, Li-Zhen, 2014, Three new species of the myrmecophilous genus Doryloxenus from China (Coleoptera, Staphylinidae, Aleocharinae), ZooKeys 456, pp. 75-83 : 76-78

Taxon classification Animalia Coleoptera Staphylinidae

Doryloxenus tangliangi sp. n. Fig. 2

Type material.

Holotype: China: ♂, labeled 'CHINA: Zhejiang Province, Huzhou City, Anji County (安吉县), Longwangshan (龙王山), alt. 1330m, 30°24'15.53"N, 119°26'36.81"E, 14-V-2013, X.-B. Song leg., from a colony of Aenictus sp. / HOLOTYPE [red], Doryloxenus tangliangi sp. n., Song & Li det. 2014, SNUC’. Paratype: China: 5♂, 3♀, 102sex?, same data as holotype, bearing the following label: 'PARATYPE [yellow], Doryloxenus tangliangi sp. n., Song & Li det. 2014'. (SNUC, KUM).

Comparative notes.

Doryloxenus tangliangi is most similar to Doryloxenus aenictophilus described above by the forebody sparsely covered with yellow setae and the macrochaetotaxy of tergites II–V: 6, 4, 4, 4, 4. It differs from Doryloxenus aenictophilus by the larger eyes, the relatively long elytra, as well as the different shapes of the aedeagus and spermatheca.

Description.

Body (Fig. 2A) smooth, glossy. Coloration: Light reddish-yellow overall.

Head shaped as in Fig. 2B, sparsely covered with long yellowish setae; eyes large. Pronotum (Fig. 2A) wider than long, about 1.44 times as wide as long; disc sparsely covered with long yellowish setae. Elytra (Fig. 2A, C) about 2.73 times as wide as long; disc sparsely covered with long yellowish setae, with a row of setae on lateral margins. Abdomen wedge-shaped; posterior margins of tergite II–VI with a row of very long yellowish setae; abdominal tergite VII (Fig. 2D) truncate at apex, with 2 pairs of macrochaetae at the anterior 1/3 and 3 pairs near apex; tergite VIII (Fig. 2E) slightly truncate at apex, with 1 pair of lateral macrochaetae and 2 pairs near apex; sternite VIII shaped as in Fig. 2F. Macrochaetotaxy of abdominal tergites II–VIII: 6, 4, 4, 4, 4, 10, 6.

Male. Median lobe of aedeagus shaped as in Fig. 2 G–H.

Female. Spermatheca with apical part strongly swollen, shaped as in Fig. 2I.

Measurements.

BL: 1.70-1.93; FBL: 0.77-0.86; PL: 0.34-0.37; PW: 0.51-0.52; PW/PL: 1.38-1.53; HW/PW: 0.63-0.67.

Distribution.

East China: Zhejiang.

Symbiotic host.

Aenictus sp. (Fig. 5 A–B).

Biological notes.

Most of the specimens were sifted from a colony of Aenictus ant, at least four individuals were observed riding on the abdomen of worker ants (Fig. 4B).

Etymology.

Dedicated to Dr. Liang Tang, who found the colony of the host ants.