Lusius Tosquinet 1903

Genus Lusius Tosquinet, 1903 Lusius Tosquinet, 1903: 384. Type species: Lusius macilentus Tosquinet, 1903, by original designation and monotype. Mesochorischnus Heinrich, 1938: 128. Type species: Mesochorischnus tenuissimus Heinrich, 1938, by original designation and monotype. Synoymized by Townes & Townes (1966: 217). Diagnosis. See diagnosis in (Nascimento et al. 2024). Key to Chinese species of Lusius 1. Apical margin of clypeus thin, not emarginated; frons not vertically striate; malar space 1.0–1.3× longer than basal width of mandible; hind basitarsus as long as segments 2–5; tarsal claws pectinate; second metasomal tergite 2.5× longer than wide apex; gonostyle 0.45× as long as hind tibia................................................................. 2 -. Apical margin of clypeus thick, emarginated; frons vertically striate laterally; malar space 0.7× as long as basal width of mandible; hind basitarsus 1.3× longer than segments 2–5; tarsal claws simple; second abdominal tergite 4.5× longer than wide at apex; gonostyle 0.6× as long as hind tibia.......................................... L. gracilis Kusigemati, 1986 2. Propodeum reticulate-rugose, with strong punctures; first tergite fulvous brown posteriorly, outer side of hind coxa sometimes fusco-rufous...................................................................... L. apollos (Morley, 1913) -. Propodeum weakly rugose with transverse-striation (Fig. 2C), without punctures; first metasomal tergite entirely yellow (Fig. 2D); hind coxa entirely pale yellow (Fig. 2D).............................................. L. hunanensis sp. nov.