A taxonomic account of the genus Labus de Saussure, 1867 (Hymenoptera, Vespidae, Eumeninae) with descriptions of three new species Author Li, Ting-Jing https://orcid.org/0000-0001-7175-2697 Chongqing Key Laboratory of Vector Insects, Chongqing Key Laboratory of Animal Biology, Institute of Insect and Molecular Biology, Chongqing Normal University, Chongqing 401331, China Author Carpenter, James M. https://orcid.org/0000-0001-6754-8028 Division of Invertebrate Zoology, American Museum of Natural History, Central Park West at 79 th Street, New York, NY 10024, USA carpente@amnh.org text Journal of Hymenoptera Research 2018 2018-08-27 65 23 46 http://dx.doi.org/10.3897/jhr.65.26976 journal article http://dx.doi.org/10.3897/jhr.65.26976 1314-2607-65-23 CA564E051B39449DB854B0C133539BFC FF86FF93943AFFEAFF91FF93FFD00A56 1408293 Labus rufomaculatus van der Vecht, 1963 Labus rufomaculatus van der Vecht, 1963: 8; Gusenleitner 1988 : 195; Girish Kumar et al. 2014 : 36. Material examined. No specimens examined. Diagnosis. Closely allied to L. amoenus van der Vecht, 1935 with the following characters in common: head higher than wide, the sides slightly flattened; anterior lateral angles of pronotum each produced into a sharp spine; metanotum with sharp median tooth; propodeum, as seen in profile, with short blunt tooth above the apical tooth; metasomal petiole relatively long and slender (Van der Vecht 1935 , fig. ia); the morphological characters separating the two species are as follows: frontal fovea deeper and slightly smaller, circular or even a little wider than long, distinctly defined; frons not carinate; median part of scutellum regularly rounded posteriorly, without prominent angles; punctures on head and thorax very slightly coarser than L. amoenus ; body black, without yellow spots, and with the following parts red: an ill-defined transverse spot at base of clypeus, a rather wide transverse band at anterior margin of horizontal surface of pronotum, a small spot in upper part of mesepisternum below tegulae, a transverse band on scutellum, interrupted by the black median groove, and the greater part of the metasomal petiole (van der Vecht 1963 ). Distribution. Indonesia.