Temnothorax, Mayr, 1861, Mayr, 1861

Eguchi, K., Viet, B. T. & Yamane, S., 2011, Generic synopsis of the Formicidae of Vietnam (Insecta: Hymenoptera), Part I - Myrmicinae and Pseudomyrmicinae., Zootaxa 2878, pp. 1-61 : 29-30

Temn th rax Mayr , 1861

Taxonomy. Although the genus Temnothorax was synonymized with Leptothorax, Temnothorax was recently revived as an independent genus by Bolton (2003) and assigned to the Temnothorax genus group of the tribe Formicoxenini . Workers of Vietnamese species have the following features.

Worker monomorphic. Head subrectangular with round posterior corners; frontal carina and antennal scrobe absent; median portion of clypeus moderately convex anteriad, but never forming an anteriorly projecting shelf and never distinctly overlapping basal portion of mandibular blades; median clypeal carina weak but present; median clypeal seta absent; posteromedian portion of clypeus broadly inserted between frontal lobes; mandible triangular, with 5 teeth; palp formula 5,3; stipes of maxilla without a transverse crest at about its midlength; antenna 12-segmented, with 3-segmented antennal club; eye moderate to large in size; promesonotum in lateral view only weakly raised; promesonotal suture absent dorsally; metanotal groove shallowly impressed or almost absent dorsally; propodeal spine present; propodeal lobe roundly expanded; middle and hind tibiae without distinct spurs apically; petiole pedunculate, with low node, with a tiny process or angle on ventral face of anterior part of peduncle; gastral shoulder weakly present; sting simple, without any appendix apically.

The worker of Temnothorax is similar to that of Vo m b i s i d r i s and Cardiocondyla (for distingusihed characters see under the latter genera).

Vietnamese species. Two species are known from Vietnam: sp. eg-1 (Sa Pa); sp. eg-2 (Tam Dao).

Bionomics. Temnothorax species are rare in Vietnam where they have been collected around or above 1000 m alt. in northern Vietnam.