C. species NI 1
Adult
Male:
C. species NI 1: Male hypopygium (left) and superior volsella (right) Wing length - 3.52 mm, wing width - 0.88 mm, VR - 1.06; AR - 3.00, LR - 1.54.
Frontal tubercles present, length about 29 µm. Setae on clypeus - 16. Palpal segments 2-5 (micron): 46 : 278 : 267 : 418.
Thoracic setae: Acrostichals - at least 12; Dorsolaterals - 12 & 13, Prealars - 4; Scutellar in two rows, anterior - 6, posterior - 10.
Legs: Fore tarsi without a beard. Segment proportions (micron): Male
| Fe
| Ti
| Ta1
| Ta2
| Ta3
| Ta4
| Ta5
| LR
| F/T
| BR
| PI
| 1420
| 1320
| 2030
| 1100
| 1020
| 900
| 420
| 1.54
| 1.08
| 2.23
| PII
| 1460
| 1360
| 880
| 460
| 340
| 200
| 140
| 0.65
| 1.07
| -
| PIII
| 1640
| 1680
| 1300
| 700
| 540
| 330
| 180
| 0.77
| 0.98
| -
| About 12 setae, probably in individual pale areas, on tergite IX. Superior volsella between Strenzke's S- and D-types, as in many specimens of C. samoensis.Female, pupa, and larva not known. Found: Norfolk Island - Bridle Track (72-806). Known only from a single male adult, 72-806 male 1. The hypopyium, particularly the superior volsella, suggests that it may be related to Chironomus samoensis, and the AR, LR, etc., are similar to those of that species.
This specimen is in the Australian National Insect Collection. [ Return to Index | Go to References ] |