Marginal setae: Of two types: Stout, bluntly spinose on anterior margin and flagellate setae on posterior margin

Spiracular setae difficult to differentiate

Spiracular cleft sclerotization absent

Derm membranous but possesses cellular structure near anal plate and older females develop areolation

Dorsal setae finely spinose

Submarginal tubercle absent

Prepercular pores absent

Dorsal tubular ducts present

Anal plates roughly quadrate

Apical setae four pairs and inner margin setae two pairs

Subapical setae two pairs

Fringe setae three pairs

Submarginal setae spinose

Interantennal setae three pairs

Setae in prevulvar area

Ventral setae finely spinose

Antenna six segmented

Claw with a small denticle

Tibiotarsal sclerosis absent

Spiracle without sclerotic plate

Pregenital disc pores with ten loculi

Tubular ducts two types on submarginal area and on thorax