14. Chironomus n.sp. NZ14

Known only from two larvae and the mtCOI sequence.
Tentatively in Bold Bin: BOLD:ADF7908 (private data)

Adults and Pupa not known

Larva: (for only one larva) A salinarius type larva; larval head measures suggest it should be at least 15 mm long. Anal tubules 311 x 150 µm (dorsal) and 296 x 140 (ventral), so 2.1 times longer than wide.
Most of gula very dark, wider than mentum, highest at centre of mentum and widest just above rear margin; Frontoclypeus also dark and with tesselate appearance.  VHL 366 µm, mentum width 0.73 of VHL and ventromental plates separated by 0.44 of width of mentum.
Mentum with 4th laterals reduced almost to level of 5th laterals (type II), central trifid tooth rather square, with c2 teeth well separated (type IIA).
Ventromentum width 275.5 µm, 3.40 times wider than deep, and 1.03 times wider than the mentum, with 44-45 striae, reaching almost to edge particularly at outer ends; VMR 0.28.
Pecten epipharyngis with 14 regular teeth (type B).  Premandible with inner tooth about 4.5 times wider than the inner tooth, and coming to a broad point (type C).
Distance between S4 setae 1.04 times greater than that between the antennal bases.  S5 setae anterior to nearby RO.
Antenna with A1 about 3.1 times longer than wide and about 0.44 of VHL; A2/A1 0.23; A5/A3 0.78; AR 2.50; RO about a third up from base of segment; antennal proportions (micron): 160 : 37 : 9 : 11 : 7.
Mandible with 3rd inner tooth well developed and darkened (type IIIB-C); about 24-26 furrows on the outer surface at the base; 10-11 taeniae in the Pecten mandibularis.

Cytology - not known.

mtCOI - sequence of the other larva is in BOLD.

Localities:
North Island:
    Lake Rotoaira, nr Turangi, South Auckland (39.056°S, 175.705°E) (NZ.70.2 and NZ.70.3) (S.Ibarrarán) 14-ii-2007 & 29-viii-2007

[ Return to Key | Go to References ]


Created: 30 May 2023
Access: Unrestricted
Copyright © 2021-2023, Jon Martin.