Acanthomyrmex dusun

Little is known about the biology of . One collection of this species is from a submontane forest.

Identification
Moffett (1986) - Major with head lacking rugae; clypeus with medial projection; propodeal spines short, cylindrical, curved ventrad. Minor worker unknown.

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

Nomenclature

 *  dusun. Acanthomyrmex dusun Wheeler, W.M. 1919e: 89 (s.) BORNEO. See also: Moffett, 1986c: 70.

Worker
Moffett (1986) - Major. HW 2.00, HL 1.99 (CI 100), SL 0.95 (SI 48), EL 0.21, HFL 1.08 (FLI 54; FWI 21) mm. Shallow oval foveae scattered, somewhat larger and denser near scrobes; traces of longitudinal rugae near scrobes. With a more clearly demarcated funicular scrobe than in any other Acanthomyrmex major examined. Cephalic hollow well-developed, with a conspicuous medial sulcus extending below it to the frontal area. Darkly pigmented medial streak on head long, extending into hollow. Clypeal index 178. Forward margin of clypeus with a medial projection. Condition of hypostomal teeth unknown.

Propodeal spines short, conspicuously curved caudad. Pronotal angle drawn out into a feeble tooth. Node of petiole as in figure, PWI intermediate (ca. 69). Anterior peduncle of petiole relatively short and deep, and with lateral hairs present, but sublateral pair lacking; subpetiolar declivity present. Postpetiole subrectangular, similar to that of Acanthomyrmex crassispinus. Dorsal surface of postpetiole and gaster hairy. Femora hairy, and with ventral surfaces distinctly concave. Color orange yellow.

Type Material
Moffett (1986) - Malaysia: W. Sarawak: Mount Matang, i/1914 (G. E. Bryant, [examined]).