Eukiefferiella minor

Author: (Edwards, 1929)

Exuviae 2.4-3.7mm long (m=3.3mm, n=21).
Cephalothorax: Thoracic horn 370-600µm long (m=474µm, n=18), base not obviously distinct from the apical filament (051e.jpg), gradually tapered from base to apex, with small setulae over apical third (149m.jpg); ThR 7.2-19 (m=10.4, n=16). Median antepronotal setae 1,2: 117-175; 30-80µm long (n=5); precorneal setae 1-3: 110-115; 43-93; 30-70µm long (n=4); dorsocentral setae 1-4: 95-130; 0-27; 80-115; 13-50µm long (n=5). Pearl row absent.
Abdomen: Hook rows on tergites continuous; hooks III 11-29, IV 15-25, V 15-26 (n=21). Anterior transverse bands of points present on tergites II-VI(VII). Points of posterior transverse rows of abdominal segments spine-like, elongate; teeth III 35-53µm; IV 40-53µm long (n=5). Lateral setae of segment VIII all flexible and narrow.
Anal segment: Anal lobe ratio 1.5-2.2 (m=1.9, n=17). Anal lobes without fringe. Length of anal macrosetae 0.91-1.0x length of the anal lobe (n=5).
(Linked adult male: Langton and Pinder, 2003a)

Species keys out at Page 718: Orthocladiinae 130 Eukiefferiella of the Text Key.

Widespread in Europe, circum-Mediterranean, Canary Islands.
(For more information see module IdentifyIt – file: Orthocladiinae).

Ecological notes
Northern and montane streams and lakes.