Polypedilum pe12

Form described by Langton, 1991

Diagnosis (n=1)
Exuviae less than 7.0mm long.
Cephalothorax: Cephalic tubercles weak, rounded mounds with frontal setae. Thoracic horn 8-branched, branches much shorter than half the length of the abdomen. Thorax with conspicuously large granules near suture (112b.jpg).
Abdomen: Length hook row II 0.41x width tergite; hooks 43. Tergites II-VI with obvious anterior transverse bands of points stronger than those of the median patch with which they may be confluent for the tergite width. Armament of tergites II-V or III-V discontinuous, tergites II and III without median point patch (124k.jpg); apical bands present on tergites III-V, those on III and V widely broken medially. Tergite VII without trace of a median point patch. Sternite I without two antero-lateral armed humps. Pedes spurii B II well-developed. Conjunctives with points no larger than those of the anterior transverse bands of the tergites. Vortex present. Comb of segment VIII an elongate compound spur (124l.jpg). Lateral taeniae of segments IV-VIII: 0,3,3,4,4, taeniae well-developed.
Anal segment: Anal lobes without a dorsal seta; each lobe with 19/23 fringe taeniae.

Form keys out at Page 327: Chironomini 224 Polypedilum of the Text Key.

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

Ecological notes
Moorkolk, n.w. Grübensee, Osterseen, Oberbayern.