Form described by Langton, 1991
Diagnosis (in part after Pinder and Reiss, 1986a: p. 310 - in italics)
Cephalothorax: Frontal setae absent. Cephalic tubercles small, rounded. Frontal warts absent. Thoracic horn plumose; basal ring elongate, medially constricted. Thorax granulose along median suture, otherwise smooth. Prealar tubercle inconspicuous, scutal tubercle lacking. Wing sheath without nose, pearl row absent. Two precorneals and 1 antepronotal present; dorsocentrals apparently absent.
Abdomen: Hook row II medially very widely broken, the gap in the middle broader than the length of each half of the row. Tergite I apparently bare or with small patches of shagreen; II-VI with shagreen on posterior 1/2-2/3, grading into small points posteriorly; VII and VIII with median patch of shagreen or small points in posterior 1/3. Conjunctives and pleura bare. Pedes spurii A well-developed on segment IV; pedes spurii B anteriorly on segment I, absent or weakly developed and smooth on II. Comb of segment VIII absent. Lateral setae segments II-VIII: 3,3,3,4,3-4,4,5, setae of segments VI-VIII taeniate.
Anal segment: Anal lobe well-developed with complete fringe of 70-80 taeniae in single or partially double row.
Form keys out at Page 333: Chironomini 230 Chernovskiia of the Text Key.
Distribution
(For more information see module IdentifyIt – file: Chironominae).