Toruli separated from each other by a distance only slightly, if at all, greater than diameter of torulus
. (insculptus group)....
Supraantennal grooves large and deep, with conspicuous furrow towards lateral margin of torulus
. Interantennal area with shallow, transverse oval groove and two small lateral grooves, longitudinal furrow interrupts front margin of frontal area medially and ends at front ocellus.
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.
Transfacial distance nearly as long as height of eye and 1.6 times as long as height of lower face (distance between antennal rim and tip of clypeus); diameter of torulus
only very slightly longer than distance between them, distance between torulus
and inner margin of eye 1.2 times as large as the diameter of torulus
; lower face delicately coriaceous, with relatively dense white short setae, median elevated area delicately coriaceous.
Frons with conspicuous arcuated lateral carinae extending at the base of torulus
until near central ocellus (Figure 6, see arrow), interantennal carina distinct.