Vombisidris xylochos

The types were obtained by pyrethrum fogging of forest tree.

Identification
A member of the dryas group

Distribution based on Regional Taxon Lists
Indo-Australian Region: Borneo, Indonesia, Malaysia.

Nomenclature

 * . Vombisidris xylochos Bolton, 1991: 7, figs. 10, 11 (w.) BORNEO (Brunei).
 * Type-material: holotype worker.
 * Type-locality: Brunei: Bukit Sulang, nr Lamunin, 20.viii.-10.ix.1982, BM1982-388, no. T17/1, pyrethrum fogging (N. Stork).
 * Type-depository: BMNH.
 * Status as species: Bolton, 1995b: 423; Pfeiffer, et al. 2011: 55; Xu & Yu, 2012: 1499 (in key).
 * Distribution: Brunei.

Worker
Holotype. TL 3.4, HL 0.78, HW 0.74, CI 95, SL 0.52, SI 70, PW 0.56, AL 0.98. Maximum diameter of eye 0.16 (0.22 x HW) and with 10 ommatidia in the longest row. Cephalic dorsum densely reticulate-rugose everywhere. Subocular groove complete. Sides of head divergent behind the eyes. Metanotal groove broad in dorsal view, deeply impressed in profile; outline of propodeal dorsum distinctly humped behind metanotal groove. Alitrunk reticulate-rugose. Sides of mesonotum distinctly angular in dorsal view. Propodeal spines long. Petiole and postpetiole reticulate-rugose. Spiracle of petiole very close to articulation with alitrunk. Basigastral costulae short, spaces between them finely sculptured and opaque; remainder of gaster unsculptured. Hairs present on all dorsal surfaces, short thick and truncated apically. Colour uniformly yellow.

Type Material
Holotype worker, BRUNEI: Bukit Sulang, nr Lamunin, fogging, 20.viii-10.ix.1982, BM1982-388, no. T17/1 (N. Stork).

References based on Global Ant Biodiversity Informatics

 * Bolton B. 1991. New myrmicine genera from the Oriental Region (Hymenoptera: Formicidae). Systematic Entomology 16:1-13.
 * Pfeiffer M.; Mezger, D.; Hosoishi, S.; Bakhtiar, E. Y.; Kohout, R. J. 2011. The Formicidae of Borneo (Insecta: Hymenoptera): a preliminary species list. Asian Myrmecology 4:9-58