Parakiefferiella gracillima

Author: (Kieffer, 1924)

Diagnosis (Material in coll. ZSM)
Exuviae 1.9-2.6mm long (n=4).
Cephalothorax: Thoracic horn oval, 75-95µm long (n=3); ThR 1.9-2.3 (n=3).
Abdomen: Anterior transverse bands complete. Tergites IV-VI without a distinct circular antero-median point patch. Lateral margins of abdominal segments without a hair fringe.
Anal segment: Apical projections of the anal lobes over 1.5x as long as the distance from their origin on the lobes to the base of segment IX (058i.jpg). Anal lobes without fringe. Length of anal macrosetae 0.21-0.35x lobe length.

Species keys out at Page 741: Orthocladiinae 153 Parakiefferiella of the Text Key.

Holarctic species: widespread in (continental) Europe (not Fennoscandia).
(For more information see module IdentifyIt – file: Orthocladiinae).

Ecological notes
Larvae hygropetric in cold springs and waterfalls.