Larva: a medium sized bathophilus-type; ventral tubules well developed. Gula and frontoclypeus pale. Mentum with fourth laterals slightly reduced (type I-II); c2 teeth of centre trifid tooth well separated (type II). Pecten epiparyngis with about 13 - 17 sharp pointed teeth. Antenna relatively short, AR about 1.95 - 2.3, basal segment about 3 - 3.6 times as long as wide, antennal proportions (microns) 146 : 36 : 9 : 13 : 7. Ventromentum with about 35 - 45 striae. Mandible with third inner tooth only slightly darkened and not completely separated (type II), about 13 - 16 striae on the outer surface near the base.
Cytology: 4 pairs of chromosomes with the pseudothummi arm combination AE, BF, CD, G.
Arm G paired, with a terminal nucleolus, probably with a BR close by, and a BR just before the middle of the arm.
timA1: 1a-e, 9 - 8, 2d - 3e, 1f - 2c, 10 - 11, 3f-i, 12c-a, 4 - 7, 13 - 19
timE1: 1 - 3e, 10b - 3f, 10c - 13 as oppositus E1
timF1: 1 - 2a, 10 - 6, 13c - 11, 2b - 5, 13d - 23
Pupal exuvia relatively pale, brownish and about 10 - 10.6 mm long; spurs with one or two spines.