Diagnosis. It belongs to the annulicornis species-group, and can be separated from other species within that group based on metatibia relatively extensively dark (on posterior 0.6), shape of T1 and T2, and length of body and fore wing.
Description. Female. Body length 1.8–1.9 mm. Fore wing length 1.8–1.9 mm. Head color: mostly dark brown to black, except for yellow clypeus, labrum, mandibles, and spot on lower corner of gena near oral foramen. Flagellomere color: all flagellomere brown to black. Mesosoma color: entirely dark brown to black. Metasoma color (dorsally): mostly dark brown to black, except for yellow-orange anterior 0.4–0.6 of mediotergite 1. Coxae color: pale/pale/mostly or completely dark. Metatibia color: mostly dark, with anterior 0.4 pale. Metatarsus color: dark. Pterostigma color: entirely dark. Mediotergite 1 length/width at posterior margin 5.6–6.0 ×. Mediotergite 1 maximum width/width at posterior margin 3.5 × or more. Mediotergite 2 width at posterior margin/length: 2.7–2.8 ×. Mediotergite 2 sculpture: Mostly smoth and polished. Ovipositor sheaths length: 0.7 × as long as metatibia. Male. Unknown.