Labus exiguus (de Saussure, 1855)

Li, Ting-Jing & Carpenter, James M., 2018, A taxonomic account of the genus Labus de Saussure, 1867 (Hymenoptera, Vespidae, Eumeninae) with descriptions of three new species, Journal of Hymenoptera Research 65, pp. 23-46 : 23

Labus exiguus (de Saussure, 1855)

Eumenes exiguus de Saussure, 1855: 150; Dalla Torre 1904: 22.

Labus exigua : Dover, 1925: 291; van der Vecht 1935: 158; Girish Kumar et al. 2014: 36.

Material examined.

No specimens examined.

Diagnosis.

The original description of the species gave insufficient detail to distinguish it from other species. Head wider than long, without indentation; metasomal petiole punctate and without bulging, widening a little back and forth, then truncated right to its articulation, and carrying two insensitive tubercles in front of its middle; S2 bell-shaped, but very short, appreciably wider than long, strongly swollen above and below, and offering at its posterior edge a strong duplication of the teguments; second cubital cell strongly narrowed towards the radial and prolonged at its posterior border, but at its external angle; antennal hooks very small; scape yellow beneath; pronotum anteriorly with a yellow, narrow, perfectly regular and medianly interrupted band, and each of T1-T2 and S2 with a yellow apical band; legs ferrugineous, with some parts of femora and mid tibia black (de Saussure 1855; van der Vecht 1935).

Distribution.

Malaysia; Singapore; China: Hong Kong.