Description of proposed holotype of Chironomus orientalis (in prep)

Holotype adult male:
Radon Creek, Kakadu National Park ANT.15.3 Egg mass #3, reared male 3.
Generally greenish, with light brown thoracic vittae and postnotum, legs unmarked, abdomen with brown saddle spots on segments II-V, then mostly brown. Legs pale. Wings clear.
Abdomen pale, greenish, with a brown band on posterior third to half of segments II-VI, then largely brown.
Wing length 2.84 mm; width 0.67 mm; VR 0.95; 14 setae on squamal fringe, 3 SCf on brachiolum.
Head: AR 2.44.  Cephalic tubercles about 33 µm and 2.5 times longer than wide; clypeal width about 0.65 of diameter of antennal pedicel with 15 setae; palp proportions (micron) 45 : 50 : 188 : 208 : 308.
Thoracic setae: about 18 Acrostichals ; 16-17 Dorsolaterals; 5 Prealars; 1 Supraalar; Scutellars in two rows, 6 in anterior row, 12 in posterior row.
Leg length and proportions (micron)

Pupal exuvia: length 7.8 mm; inner margin of wing case 1.45 mm.  Shagreen at centre rear of seg. II; over rear 2/3 of segs. III-V but with central gap on seg. V; only vague on seg. VI except around posterior setae, and not obvious on segs. VII-VIII; spicules in intersegments V-VI and VI-VII.
Cephalic tubercles, 23-25 µm long and width at the base about 30-40 µm, with subterminal setae up to 75 µm long.  Basal ring of respiratory horn kidney shaped, about 133 µm long and 65 µm wide, HR about 2.0.  About 72 recurved hooks at rear of segment II, occupying about 78% of the segment width.  Pedes spurii small on segment II; pedes sprii large on segment IV – about 132 µm long and 78 µm wide, about 18% of the segment length; about 75 µm on seg V; 70 µm on seg VI.  Spur of segment VIII with 3 spines (2 large and 1 small); about 86 taeniae on each side of swim fin.