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DescriptionGeneral: Body length of female: 3.3-3.7 mm (n=20). Body length of male: 3.4-3.9 mm (n=5). Body color: black.
Antenna: Color of antennae in female: dark brown to black throughout, A1–A6 yellow; A7–A12 dark brown to black. Color of antennae in male: A1–A2 brown; A3– A12 variably becoming yellow apically, antennomeres often yellow ventrally. Seta on pedicel of antenna in female: present, reaching past apex of A3.
Head: Color of setae on the head: yellow. Sculpture of dorsal frons between frontal carina and median ocellus: coarsely foveate, areolate. Preocellar pit in females: absent. Transverse rugae at vertex: present. Sculpture of posterior vertex: areolate, coarsely foveate. Sculpture of occipital rim: areolate. Interantennal process: extended dorsally into medial flange, flange reaching from near apex of interantennal process to frons. Number of anteriorly projecting setae on anteclypeus: 6. Color of mandibles in male: yellow throughout, teeth brown. Color of mandibles in female: yellow throughout with teeth brown. Mandibular teeth in female: dorsal tooth larger. Sculpture of ventral gena anterior to genal carina: row of contiguous punctures, row of well separated punctures. Sculpture of ventral gena posterior to genal carina: mostly smooth, with sparse large punctures, coarsely and irregularly punctate. Shape of anteclypeus: striplike, straight to slightly convex.
Legs: Color of legs: entirely yellow.
Mesosoma: Sculpture of dorsal pronotum: areolate, areolate with expanded ridges. Color of setae on the dorsal mesosoma: yellow. Sculpture of medial mesoscutum: coarsely foveate. Sculpture of lateral mesoscutum: with an elevated patch of smoother sculpture, bounded by mesoscutal humeral sulcus laterally, extending to scutoscutellar sulcus posteriorly. Notaulus in female: present. Parapsidal line: delimited. Sculpture of scutellum: coarsely foveate. Median furrow on scutellum: absent. Posterior margin of scutellum: convex. Outer projection of the propodeum: present as distinct corner or posteriorly projecting spine. Posterior margin of propodeal shelf between inner and outer propodeal projections in female: concave. Posterior margin of propodeal shelf between inner and outer propodeal projections in male: concave. Sculpture of ventral pronotum: mostly smooth with small foveolae around antespiracular patch. Anterior pronotal pit: large. Pronotal cervical sulcus: well defined by contiguous punctures. Mesepimeral sulcus: indicated by dorsoventral line of foveae. Sculpture of femoral depression in female: smooth throughout. Sculpture of femoral depression in male: smooth throughout. Mesopleural carina: indicated by one or two rows of punctures. Sculpture of ventral mesepisternum: with smooth area surrounded by small foveae. Pilosity of metapleural triangle in female: glabrous or with at most 3 small setae. Pilosity of metapleural triangle in male: absent, present as many short fine white setae. Sculpture of ventral area of metapleuron: smooth, foveate reticulate, with slightly appressed ridges.
Metasoma: Submarginal ridge on T1: absent. Sublateral tergal carina on T2: percurrent. Sculpture of T2–T3: longitudinally striate. Sculpture of T4: longitudinally strigose. Sculpure of T5: reticulate rugose. Shape of subapical T6 in female in dorsal view: short, width along anterior margin at least three times the length. Apex of T7 in male: slightly convex. Longitudinal medial keel on S1: present. Sculpture of medial S2 in female: punctate reticulate. Sculpture of medial S3 in female: effaced to smooth. Sculpture of medial S4 in female: effaced to smooth. Sculpture of medial S5 in female: effaced to smooth. Sculpture of lateral S3 in female: reticulate rugose, foveolate. Sculpture of lateral S4 in female: foveolate. Sculpture of lateral S5 in female: reticulate rugose, foveate. Sculpture of marginal depression of S2 in female: rugulose, smooth. Sculpture of marginal depression of S3 in female: smooth, rugulose. Sculpture of marginal depression of S4 in female: rugulose. Sculpture of marginal depression of S5 in female: rugulose. Apical spine on S6 in female: not extending beyond apex of T6 and not visible in dorsal view. Sculpture of medial S2 in male: punctate reticulate, reticulate rugose. Sculpture of medial S3 in male: smooth, longitudinally reticulate. Sculpture of lateral S3 in male: reticulate rugose, foveolate. Sculpture of lateral S4 in male: foveolate, reticulate rugose. Sculpture of medial S5 in male: smooth. Sculpture of lateral S5 in male: foveolate, reticulate rugose.