Fourth instar larva: a salinarius-type larva. Head capsule coloration similar to that of C. zealandicus but smaller, length about 11.4-19.0 mm (female), 10.7-16.0 mm (male). Anal tubules short and rounded or pointed, length 200-375 µm; less than 3 times longer than wide.
Mentum (Fig. c) generally type II; centre tooth with c2 teeth well separated (i.e. type IIA). Ventromental plate (Fig. d) separated by between a third and a half (ave 0.44) of the mentum width, with only about 30-42 striae; VMR 0.28-0.31. Pecten epipharyngis (Fig. a) with about 8-16 teeth, some reduced (type C, but teeth sharp).
Basal segment of antenna (Fig. b) not as long and narrow as in other NZ species such as C. zealanicus and C. novaezealandiae, about 2.8-3.5 times longer than wide (similar to C. species 6); Ring organ between a quarter and half way up from base. Antennal proportions (microns) 132 : 32 : 7 : 15 : 7 ; A3 shorter than A4, but only slightly shorter or same length as A5; AR 1.88-2.3.
Distance between the S4 setae greater than that between the antennal bases.
Mandible (Fig. e) with 3rd inner tooth only slightly darkened and hardly separated (type IIB), with about 13-25 furrows on outer surface near base.
Cytology: 4 polytene chromosomes, pseudothummi-complex arm combination (BF,CD,AE,G).
Two nucleoli; a large one in arm F and a small one in arm G, often very difficult to distinguish from a BR. Two BRs towards the other end of the arm. Arm G usually only partially paired, sometimes more so than in other cells or specimens.Arm A as sequence A4 in Australian species; anlE1 with sequence E1 as Australian species; anlF1 as F3 in Australian species.
Polymorphism at least in arms B, C and F.
anlA1: 1a-e, 11 - 10, 2c - 1f, 3e - 2d, 8 - 9, 3f-i, 12c-a, 4 - 7, 13 - 19 ie. as oppositus A4, forsythi
anlB1: Puff (group 7) in proximal third of arm, possibly as forB3.
anlB2: inversion of distal half of arm, seen as heterozygote at Lake Ngapouri.
anlC1: as oppositus C4?
anlC2: as oppositus C3? seen at Lake Ngapouri.
anlD1: 1-2, 16 - 13, 8- 3e, 9, 3d-a, 10d - 12, 10a-c, 17 - 24
anlE1: 1 - 3e, 10b - 3f, 10c - 13 ie. as oppositusE1, forsythi
anlF1: (approx.) 1 - 2a, 10 - 2c, 15c - 11a, 2b, 15d - 23 ie. as oppositus F3, australis, forsythi, novae-zelandiae
anlF2: 1 - 2a, 10 - 9c, 2c - 9b, 15c - 11, 2b, 15d - 23
anlG1: essentially as forsythi?
Known Localities
Found in lakes.North Island:
Lake Karapiro, South Auckland (NZ.77.1) (Sofia Ibarrarán) 27-viii-2007
Lake Karapiro, South Auckland (NZ.77.2) (Sofia Ibarrarán) 29-viii-2007
Lake Ngapouri, Waiotapu (NZ.9.1 & 2) (D.J. Forsyth) 15-ii- and 8-xi-1972; 5-xii-1973
Lake Okaro, Rotorua area (NZ.10.1 & 8) (D.J. Forsyth) 19-ix-1972 & 11-ix-1990
Lake Okaro, Rotorua area (NZ.10.9) (Sofia Ibarrarán) 14-ii-2007
Ngapuna, Rotorua area (NZ.17.1) (Jon Martin & D.J. Forsyth) 7-xii-1973
Ohakune, Wellington (Freeman 1959)
South Island:
Blackball, Nelson (Freeman 1959) (Holotype
Lake Brunner, Mitchell, Westland (NZ.52.2) (Jon Martin) 10-i-1974
East Cove, Lake Te Anau, Southland (NZ.46.5) (Jon & H.I .Martin) 23-i-1978 (?)
Owaka River, South Otago (NZ.56.1) (D. Dodgshun & J.S. Pillai) 14-iii-1974
Queenstown, Otago (Freeman (1959)
West Coast, Westland (Freeman 1959)(These require further checking, as some may be C. forsythi. Many collections assumed to be C. zealandicus salinarius-type, e.g. material studied by Robb, seem to be identical with the larval material identified as C. analis by Forsyth.)
Some information on larval morphology and cytology given by Martin (1998). Stark (1981) in his key to larvae, has C. analis as a thummi-type larva, but the basis for this conclusion is not known.
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