Head dorsum in profile entirely lacks setae behind the level of the posterior margin of the eye; dorsum of head with numerous very short spaced erect and suberect setae (less than 0.50 x the maximum diameter of the eye), numerous suberect (0.03 mm) setae between the torulus and the level of the midlength of the eye, anterior clypeus with four hairs, about 0.13 mm each long; pronotum with 2 pairs of long setae, arising from very well-marked pits; Gastral
tergites 1 - 4 each with 2 - 4 very long erect setae.
It has a large choanocyte chamber, or gastral
cavity, with an osculum.
umgodikulula are the lack of sculpture on the tergum of fourth abdominal segment (second gastral
segment), which is mostly smooth and glossy, and the horizontal propodeal spiracle.
At least first and second gastral
segments ferruginous (Tsuneki, 1983a: 77-79).
All measurements are in mm: HL--Head length: Maximum length, in full face view, from the apex of the clypeal apron to the middle of vertex; HW--Head width: Maximum width in full face view; SL--Scape length (excluding basal condyle and neck), in straight line distance; PW--Pronotal width: Maximum width across pronotum in dorsal view; WL--Weber's length: In lateral view of mesosoma, the line from posteroventral corner of mesosoma to farthest point on anterior face of pronotum; GL--Gaster length: In lateral view, the line from anterior edge of first gastral
tergum to posteriormost point; TL--Total length (HL + Mandible length + WL + Petiole length + Postpetiole length + GL): CI--Cephalic index: HW/HL; SI--Scape index: SL/HW.
Length under 2 mm; gastral
tergites minutely shagreened (non-glossy); propodeal spines short, triangular; postpetiole with a strong forward-pointing ventral protrusion, color dark reddish brown.
tergum I without punctures; terga II-IV with dense, fine punctures medially and posteriorly, impunctate basally; tergum V with dense, fine punctures; pygidial plate elongate triangle, with dense, coarse punctures, and with long, yellow bristles (Fig.
tergites T2-T7 with 2, 2, 2, 4, 6 and 4 setae.
Richards (1978) mentioned this condition for the tergum in those two species at two places in his key, characterizing it as "First gastral
tergite with few outstanding hairs" for S.
Gaster dark yellow, along sides narrowly dark, first and sixth gastral
Gaster: in dorsal view first tergite with prominent, rounded anterior corners, projecting forward from midline; first gastral
tergite and sternite each with a broad, median, basal concavity; first tergite with sparse, long, suberect, posteriorly-directed, hairs that are generally distributed; tergites 2-4 smooth, each with an irregular row of large, suberect, subapical hairs.