Larva: medium sized plumosus-type larva. Length about 12.8 - 13.2 mm; Ventral Head Length about 280 - 300 µm. Gula very dark; frontoclypeus only slighly darkened. Mentum with fourth laterals reduced to about the level of the 5th laterals (type II), 6th laterals pointed outwards. Ventromentum with about 30 - 36 striae. Pecten epipharyngis with about 12 - 14 moderately broad, regular teeth. Antenna with basal segment less than 3.5 times as long as wide; A2/A1 about 0.24; A4/A3 about 2.3 - 2.6. Some specimens examined had a four segmented antenna, lacking segment 4 and with segment 5 longer than usual. Mandible with 3rd inner tooth well developed, but narrow, and with about 11 - 15 striae near the base.
Cytology: 4 pairs of chromosomes with the
pseudothummi arm combination AE, BF, CD, G. Arm G is
closely paired, with a small subterminal nucleolus, and three
Balbiani rings from the midlle to near the opposite end.
There are nucleoli in arms B (about mid-arm) and arm C (about one
third from distal end). No polymorphism is known in the
Australian samples, but sequences B2 and A2, which are not common in
Asian populations, are fixed in Australian samples.
Polymorphism is known in arms A, B, C, D, and G of Asian
populations.
cirA1: 1-3, 12-4, 13-19
as pseudothummi (not known in Australia)
cirA2: 1-2c, 10-12, 3-2d, 9-4, 13-19 as
holomelas
cirB1: Large puff, with distal dark bands about the
middle of the arm; with nucleolus about one third from
centromere. (not known in Australia)
cirB2: Large puff in same relative position, but dark
bands proximal.
cirC1: Median nucleolus.
cirD1:
cirE1: 1-2, 4-10b, 3e-a, 3f, 10c-13
cirF1: 1-2a, 10-2c, 15c-11a, 2b, 15d-23
as oppositus F3
Click here for the polytene chromosomes
The pupa with about 3 spines on the spur.
Chromosome arms A, E and F were described by Saxena (1995) as C. plumatisetigerus, although an error in the arm F pattern is corrected above.