Parachironomus acutus

Author: (Goetghebuer, 1936)

Diagnosis (n=1)
Exuviae c. 3.8mm long.
Cephalothorax: Cephalic tubercles conical, 40µm high. Frontal setae 30µm long. Thoracic horn much branched. Thoracic granulation fine, without conspicuously larger granules near suture. Posterior thoracic mound strongly swollen anteriorly and with a long posterior projection, which is often curved apically (110j.jpg).
Abdomen: Tergite armament of Parachironomus-pattern. Length hook row II 0.39x width tergite; hooks 26. Sternite I without toothed humps. Sternite II with both posterior and anterior transverse spine bands represented, though one or both of them may be interrupted medially. Vortex present. Comb of segment VIII absent. Lateral setae of anterior segments spine-like; lateral taeniae of segments V-VIII: 4,4,4,5.
Anal segment: Fringe of anal lobe with 61/69 taeniae.
(Linked adult male: Freeman, 1957a)

Species keys out at Page 249: Chironomini 146 Parachironomus of the Text Key.

Afrotropical species; Eastern Mediterranean.
(For more information see module IdentifyIt – file: Chironominae).

Ecological notes
Standing and slow flowing water. (Harrison, 2000a)