Paralauterborniella nigrohalteralis

Author: (Malloch, 1915)

Exuviae 3.1-3.8mm long (n=15) (119-1.jpg).
Cephalothorax: Cephalic tubercles elongate conical, 63-112µm high (n=12); frontal setae apical, 75-150µm long (n=10) (119b.jpg). Wing sheaths with a weak nose. 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 0.38x width tergite (n=1); hooks 30-35 (n=3). Tergites II-VI without conspicuously stronger points anteriorly, anterior point bands, when present, not medially interrupted (119c.jpg). Tergites III and IV with medially interrupted apical point bands. Tergite VII with restricted armament. Vortex absent. Comb of segment VIII 3-9 marginal teeth. Four lateral setae on segments II-IV; lateral taeniae of segments V-VIII: 4,4,4,4.
Anal segment: Anal lobes with a dorsal taenia. Fringe of anal lobe with 27-34 taeniae (n=14) (119d.jpg).
(Linked adult male: Langton and Pinder, 2003a)

Species keys out at Page 282: Chironomini 179 Paralauterborniella of the Text Key.

Holarctic species: widespread in Europe (not Mediterranean).
(For more information see module IdentifyIt – file: Chironominae).

Ecological notes