Barichneumonites ludibundus (Tosquinet, 1903) Material. Indonesia: W Sumatra, Lahan basah, Andalas University, Padang, 0.933°S 100.455°W, 156 m, 1 ♀ 16.i.2016, leg. H. Hamid, S16042, COI 631 [0n], BOLD ADE 1162, INDOBIOSYS- CCDB 26088- D09 (ZSM). Remarks. ♀. Body length 8.5 mm. Flagellum with 39 flagellomeres, semi-bristle-shaped; 1 st flagellomere 2.4 × longer than wide, widest flagellomeres about square, apical flagellomere blunt. OED 1.1 × and OOD 1.4 × ocellar diameter. Hind femur 4.8 × longer than wide. 2 nd tergite 1.2 × wider than long. Gastrocoelus moderately impressed. Thyridium slightly oblique, 0.6 × as wide as the interval between thyridia. Distribution. Widespread in the Oriental region, known from Java, new record for Sumatra.

Published as part of Riedel, Matthias, 2023, Contribution to the knowledge of the Ichneumoninae (Hymenoptera, Ichneumonidae) from Maritime Southeast Asia, pp. 1-94 in Zootaxa 5363 (1) on page 23, DOI: 10.11646/zootaxa.5363.1.1, http://zenodo.org/record/10146851