Chelonastichus hanssoni Ranjith & Quicke 2025, sp. nov.

Chelonastichus hanssoni Ranjith & Quicke sp. nov. Figs 1, 2, 3 Description. Female, holotype. Length 2.6 mm. Head. Eye setose (Figs 1 A – E, 2 E); F 1 slightly shorter than F 2 (Fig. 2 E); face smooth and shiny (Figs 1 B, C); malar space with sparse setae (Fig. 1 E); scrobes shallowly impressed, smooth (Fig. 1 B). Mesosoma. Axillae finely reticulate (Fig. 1 F). Mesoscutellum finely strigose associated with indistinct reticulations (Fig. 1 F). Propodeum with weak reticulation throughout, with several anteriorly diverging carinae originating from posterior margin (Fig. 2 B). Ratios. Head: w / l (dorsal view) 2.9; w / l (frontal view) 1.3; POL / OOL 1.8; posterior ocellus w / POL 0.6; head w / mss w 1.2; mouth w / MS 0.5; MS / HE 0.7; scape l / HE 0.7; distance toruli to anterior ocellus / toruli to mouth margin 1.4; flg + ped l / mss w 1.3; scape l / w 4.3; F 1 l / w 1.3; F 2 l / w 1.8; F 3 l / w 1.6; clava l / w 4.6; ped l / F 1 l 1.3; F 1 l / F 2 l 0.9; F 1 l / F 3 l 0.9; F 1 l / clava l 0.4; F 2 l / clava l 0.4; F 3 l / clava l 0.4; F 1 w / ped w 1.1; antennal spicule l / C 3 l 0.2. Mesosoma: l / h 1.5; l / w 1.9; midlobe msc l / sct l 1.1; dorsellum l / ppd l 0.5; sct l / w 0.9; CC l / w 13.0; CC l / MV l 0.65; MV l / SV l 5.0; metafemur l / w 4.5; metatibia l / w 6.5. Metasoma: petiole l / w 0.5; gaster l / w 2.0; gaster l / mss l 1.3; Gt 1 l / w 0.6; Gt 5 l / w 1.1. Colour. Body yellow except eyes and ocelli reddish, antennal clava brownish orange, Gt 2–4 brown. Material examined. Holotype • ♀ Thailand, Nakhon Ratchasima, Wang Nam Khiao district, Udom Sap subdistrict, Sakaerat Environmental Research Station, dry evergreen forest, 14°50.911'N, 101°92.963'E, 402 m, 30.vi–12.vii.2021, Malaise trap, coll. K. Chansri (deposited in CUMZ). Distribution. Thailand. Etymology. The species is named after Dr Christer Hansson, Lund University, Sweden for his outstanding work on Eulophidae.