Eukiefferiella gracei

Author: (Edwards, 1929)

Exuviae 4.0-5.0mm long (n=6) (051-2.jpg).
Cephalothorax: Thoracic horn 565-680µm long (n=3), with swollen base, obviously distinct from the apical filament (051g.jpg). Length horn base 0.25-0.31x length horn (n=3); ThR (base) 2.0-2.3 (n=4). Median antepronotal setae 1,2: 263-300; 60-105µm long (n=6); precorneal setae 1-3: 263-350; 60-150; 35-105µm long (n=6); dorsocentral setae 1-4: 278-317; 37-53; 125-225; 18-27µm long (n=4). Pearl row absent.
Abdomen: Hook rows present on tergites III-V, continuous; hooks III 15-20, IV 15-21, V 14-20 (n=6). Anterior transverse bands of points present on tergites II-VI(VII). Points of posterior transverse rows spine-like, elongate (051h.jpg); teeth III 38-55µm; IV 33-57µm long (n=4). One lateral seta of segment VIII broad, taeniate or stiff.
Anal segment: Anal lobe ratio 1.8-2.0 (n=5). Anal lobes without fringe. Length of anal macrosetae 0.79-0.91x length of the anal lobe (n=5) (051i.jpg).
(Linked adult male: Langton and Pinder, 2003a)

Species keys out at Page 719: Orthocladiinae 131 Eukiefferiella of the Text Key.

Widespread in Europe, north Africa.
(For more information see module IdentifyIt – file: Orthocladiinae).

Ecological notes
Mostly fast flowing water, the larvae on rocks and amongst submerged mosses; occasionally in lakes in the north.