Polypedilum pe10

Form described by Langton, 1991

Exuviae 5.5mm long.
Cephalothorax: Cephalic tubercles in the form of shallow humps. Frontal setae 70µm long. Thoracic horn of a few (about 10) branches, branches much shorter than half the length of the abdomen. Thorax with conspicuously large granules near suture (112b.jpg).
Abdomen: Length hook row II 0.54x width tergite; hooks 79. 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. Anterior transverse band of points of tergite II narrowing laterally, not extended posteriorly on each side (124d.jpg). Armament of tergite VII medially interrupted. Only segment IV with apical band of points. Sternite I without two antero-lateral armed humps. Pedes spurii B II small. Vortex present. Comb of segment VIII a weakly curved spur with small points internally, dorsally and externally (124e.jpg). Segment IV without lateral taeniae; V with no more than three lateral taeniae.
Anal segment: Fringe of anal lobe with 25/27 taeniae. At most 1 dorsal seta on the anal lobes.
Note: This form is extremely close to Polypedilum convictum, and may represent a Middle East variant.

Form keys out at Page 309: Chironomini 206 Polypedilum of the Text Key.

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