Dolichoderus scabridus species group

Based on Dill 2002.

Species
Oriental species
 * Dolichoderus beccarii
 * Dolichoderus indrapurensis
 * Dolichoderus indrapurensis nigrogaster

Australian species
 * Dolichoderus angusticornis
 * Dolichoderus scabridus
 * Dolichoderus ypsilon

Identification
This group is well defined by means of the alveolate surface sculpturing and the typical propodeal spines. In addition, it is well characterized by the shape of the head (narrow convex portion of the posterior margin) and the very long scape (fig. III-73, fig. III-74: SI). The long and very straight spines differ from the more horn-like and curved spines of several species of the cuspidatus group.

Worker
(fig. III-34): Medium-sized to large species. Head and most parts of the alitrunk alveolate, the honeycomb-like cavities are ± deep and shining, each bearing a single hair; the separating rims finely punctate and matt. Entire body surface with long, erect hairs; pubescence lacking or dense (Australian species). Head about as wide as long, sub-oval; posterior margin weakly emarginate, this concave portion distinctly narrower than clypeus; scape slender and long (SI around 130); pronotum unarmed; mesonotum slightly convex, its anterior margin distinct, its posterior margin indistinct; propodeum bearing a pair of long, ± straight, pointed spines, pointing upwards, backwards, and slightly sidewards (figs . III-34b·c). Petiole scale ± bulky.

Queen
(only known of Dolichoderus beccarii) (fig. III-35): Similar to workers, but winged with a large, strongly convex flight thorax and distinctly separated sclerites. Posterior edges of propodeum expanded to short spines that are much shorter than those of the workers.

Males have yet to be collected.

Related Pages

 * Dolichoderus
 * Dolichoderus species groups
 * Key to Dolichoderus groups for workers of Southeast Asia
 * Key to Dolichoderus groups for queens of Southeast Asia