The malar space well developed, longer
than the scape is wide. The scutellum
extended backward only slightly, not so far
as the end of the propodeum. The apex of
the clypeus with upright black hairs. The
two inner teeth on the mandible very large,
the second one placed distinctly more
basad than the first, springing from a level
somewhat less than one-half the distance
to the base of the mandible. The contrast
between the dark basal half and whitish
apical half of the wing is strong. The hairs
on the abdominal sternites black or
blackish…..Tetrigona Moure 1961