Chironomus entis

Author: Shobanov, 1989

Diagnosis (material leg. Shobanov; also coll. Hirvenoja (sub 'near entis').)
Exuviae 16.3-18mm long (n=4).
Colour: Exuviae golden to golden-brown.
Cephalothorax: Cephalic tubercles LxB 220x220-250x250µm (n=4). Frontal setae 120-140µm long (n=4). Basal ring of thoracic horn 300x150-320x160µm (n=2); tracheolar patch 225x80-240x70µm (n=3); tracheoles 3.2, 3.5µm in diameter (n=2). Tracheolar patch of thoracic horn without an "eye". Thoracic granulation strong and extensive; reaching the suture dorsally at least as far as the anterior edge of the wing sheath.
Abdomen: Hook row II entire, length of row 0.52, 0.56x width tergite (n=2); hooks 110-115 (n=3). Armament of tergites II-VI not so strongly waisted and with the posterior transverse band not successively increasing in extent to tergite VI; usually reduced on VI. Median point patches of tergites III-V without marmoration. Shagreen of sternite II strong and almost covering the sternite. Shagreen of sternites III and IV forming a lateral longitudinal band on each side, which may spread inwards anteriorly. Comb of segment VIII with 10-16 narrow apiculate teeth (n=5), set on the end of an elongate ventral cuticular mound which exceeds appreciably the apico-lateral corner of the segment. Lateral taeniae of segments V-VIII: 4,4,4,4 (n=5).
Anal segment: Anal lobe with 180- >250 fringe taeniae (n=3).

Species keys out at Page 157: Chironomini 54 Chironomus of the Text Key.

Holarctic species: N+C+E Europe.
(For more information see module IdentifyIt – file: Chironominae).

Ecological notes
Large stagnant water bodies.