Mentum (Fig. c) with c2 teeth of central trifid tooth well separated from c1 tooth (type III), 4th laterals slightly reduced (type I).
Pecten epipharyngis (Fig. a) with about 16-21 variable but sharp teeth. Ventromental plates Fig. d) abt. 168 µm wide, separated by about 0.32-0.38 of width of mentum; with about 31 (29-32) striae; VMR 0.25.
Premandible with the two teeth about equal in length and coming to relatively fine points, inner tooth about 1.3-2.5 wider than the outer tooth (Ty. B1).Antenna (Fig. b) with a moderately long basal segment, which is about 4.04-4.05 times as long as wide; RO about 0.3-0.4 up from base; AR about 2.02-2.05; Antennal proportions: 115 : 27 : 10.5 : 13 : 6.
Mandible (Fig. e) with third inner tooth only slightly darkened (Type I-IIB), and with about 13 (12-14) furrows on outer surface at the base; reported to have a double bulge on the inner surface of the mandible; MTR about 0.33.
Cytology: 4 polytene chromosomes with the pseudothummi arm combination AE, BF, CD, G.
Nucleolus virtually terminal in arm G, with very large Balbiani ring (BR) adjacent, separated by only 4-5 bands; closely paired. No nucleoli in long chromosomes.
Polymorphism in arms D and F seen in the two specimens examined.
pnbA1: 1 - 2c, 11 - 7, 4 - 6, 2d - 3, 12 - 19
pnbB1: Puff near the end of the arm with the dark bands distal (in all sequences?)
pnbC1: Constriction (groups 3 and 4) about one quarter from distal end.
pnbD1:
pnbD2: a simple inversion of about 1/3 of the arm towards the distal end.
pnbE1: 1 - 13 as piger, etc.
pnbF1: 1 - 2a, 10 - 6, 15 - 11, 2b - 5, 16 - 23 i.e. from oppositus F1 by Inv15 - 5
pnbF2: A complex inversion of about the distal half of the arm
pnbG1: Virtually terminal nucleolus with adjacent BR.
Pupa: Length about 6.7-7.0 mm, posterior margin of wing case about 1.35-1.60 mm.
Head: Cephalic tubercles about 63-79 µm long and about 40-67 µm wide at the base, with a subterminal seta about 40-57 µm long.Thorax: Prealar tubercle present but small, about 18-23 µm long and 8-10 µm wide. Basal scar of respiratory horn with edge thicker at the anterior end, and pinched at the centre, about 113-116 µm long and 49-57 µm wide. There are a number of small pits (2-4) immediately anterior to the basal scar, and a large, possibly muscle scar just posterior to it.
Abdomen: About 61-75 recurved hooks on posterior margin of segment II, the hook row covering about 60-85% of the width of the segment. Pedes spurii B on segment II, and larger on segment III, and pedes spurii A on segment IV, while those of segment V and VI are small and mainly identifiable by the spinules.
Only 3 L-setae seen on segment III, while the last one on segment IV is at the junction with segment V. Segment VIII with two pairs of larval ventral tubules; caudolateral spur with one main spine and 1 or 2 smaller ones.
Anal lobe with about 59-62 taeniae on each side, mostly in a single row but multiple rows at posterior end.