CHIRONOMUS NOVÆ-ZELANDIÆ - n sp. Male. Yellowish. Frontal lobes very small. Antennae and plumes brown, black scape, twelfth segment very long, four times as long as 2-11 combined, 3-11 very broad. Metanotum, three shortened bands of mesonotum and mesosternum brownish red and dull. Halteres white. Wing hyaline, lobe at right angles, transversal black, cubitus a half longer than the radius, and nearer to the tip of the wing than the discoidal; cross-vein under the transversal. Legs yellowish, fourth and fifth segments of the tarsae a dark brown, anterior metatarsus a third longer than tibia, its distal third and the second segment setae long, 2-4 gradually shorter, pulvilli large, the two spurs of the posterior tibia short. Abdomen brown black, hind margin of tergites whitish. Claspers brown black; terminal parts very long, nearly twice as long as the basal, slightly curved and slightly thinned in their distal half, median part bearing, before the extremity, a row of six rigid bristles, almost twice as long as the width of the segment; superior appendage red, exceeding the basal segment, strongly curved, equally wide to the extremity, which is rounded; inferior appendage twice as long as the superior, exceeding the basal third of the terminal segment, with common long, curved, dorsal hairs; anal point moderately long. L. 8 m/m.
(i.e. AR about 4; LR about 1.3)
Female. Antennae brown, second segment has neck a little longer then wide; 3-5 a neck shorter than the base, the sixth half longer than the fifth. L. 7 m/m.
New Zealand, 7 male, 1 female.
Translation of Kieffer's original 1921 description
There are 5 males, including the lectotype from Wellington, and two females of the type series, collected by Osten-Sacken, in the DEI near Berlin, Germany. The specimens are lacking many leg segments, and, in one case, the abdomen. These specimens were examined in 1997.
AR about 3.23-3.6; Clypeal setae about 22-37. Thoracic setae could not be clarified.
VR about 1.
Legs: Anterior tarsi with a beard of dense shorter setae (BR 1.6-4.3) and sparse longer setae (BR about 3-7) i.e. about twice the length of the shorter setae.
Leg segments (relative lengths only):
|
Fe
|
Ti
|
Ta1
|
Ta2
|
Ta3
|
Ta4
|
Ta5
|
LR
|
F/T
|
BR
|
PI
|
285
|
265
|
377
|
200
|
140
|
-
|
-
|
1.34-1.45
|
0.96-1.09
|
4.7-7.0
|
PII
|
290
|
275
|
160
|
100
|
-
|
-
|
-
|
0.58-0.60
|
1.02-1.08
|
|
PIII
|
370
|
390
|
245
|
154
|
-
|
-
|
-
|
0.60-0.69
|
0.89-1.0
|
|
Abdominal segments generally with a dark band and a narrow pale posterior stripe. One specimen (labelled only 'New Zealand') has a narrower dark band and has green on the abdomen as well - since this specimen has only a shorter beard (BR 3.15), it may be a different species.
Female:
Osten-Sacken specimen - (labelled only 'New Zealand')
Few metrics able to be ascertained;
Antenna (relative lengths: 100 : 200 : 175 : 180 : 265. AR 0.41-0.42;
Most leg segments missing:
Leg segments (relative lengths only):
|
Fe
|
Ti
|
Ta1
|
Ta2
|
Ta3
|
Ta4
|
Ta5
|
LR
|
F/T
|
PI
|
225
|
235
|
-
|
-
|
-
|
-
|
-
|
-
|
0.94
|
PII
|
205
|
215
|
-
|
-
|
-
|
-
|
-
|
-
|
0.95
|
PIII
|
370
|
390
|
255
|
-
|
-
|
-
|
-
|
0.63
|
1.0
|
Return to C. novaezelandiae
|