Chironomus curabilis

Author: Belyanina, Sigareva and Loginova, 1990

Diagnosis (Material leg. N. Polukonova)
Exuviae 13.6-14.2mm long (n=5).
Colour: Cephalothorax dark brown, abdomen brown.
Cephalothorax: Cephalic tubercles LxB 200x150-245x170µm (n=4). Frontal setae 96-140µm long (n=4). Basal ring of thoracic horn 220x1100-270x130µm. Tracheolar patch of thoracic horn without an "eye", patch 130x35-210x75µm; 20-24 tracheoles across (n=5); 2.5-3.5µm in diameter. 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 0.45-0.5x width tergite (n=3); 68-90 hooks (n=4). Armament of tergites II-VI not strongly waisted and with the posterior transverse band not successively increasing in extent to tergite VI; usually reduced on VI. Comb of segment VIII with 10-30 long apiculate narrow teeth, set on the end of an elongate ventral cuticular mound which exceeds appreciably the apico-lateral corner of the segment. Sternite II unarmed. Shagreen of sternites III and IV forming a lateral longitudinal band on each side, which may spread inwards anteriorly.
Anal segment: Anal lobes weakly rounded. Anal lobe with 130-161 fringe taeniae (n=3).

Species keys out at Page 156: Chironomini 53 Chironomus of the Text Key.

(For more information see module IdentifyIt – file: Chironominae).

Ecological notes
Volga River and ponds near Saratov.