Eukiefferiella brevicalcar

Author: (Kieffer, 1911)

Exuviae 2.8-3.7mm long (n=10) (052-2.jpg).
Cephalothorax: Thoracic horn 290-400µm long (m=367µm, n=12), broadest at base, tapered to apex, more strongly tapered over the basal half (052f.jpg). Length horn base 0.3-0.4x length horn (n=12); ThR (base) 1.7-2.7 (n=10). Median antepronotal setae 1,2: 143-160; 80-120µm long (n=4); precorneal setae 1-3: 135-160; 100-140; 15-63µm long (n=5); dorsocentral setae 1-4: 45-50; 40-55; 63-95; 0µm long (n=5). Thorax smooth. Pearl row absent.
Abdomen: Hook rows on tergites broken medially or continuous, hooks III (2/3)7/8-11/16, IV (1/5)8/9-12/10-26, V 16-12/13. Shagreen restricted to an anterior transverse band. Tergites II-VIII with a posterior band of points which diminish in size laterally (052g.jpg). Length posterior teeth III 13-15µm; IV 10-13µm (n=5). Segment VIII with two strong lateral setae.
Anal segment: Anal lobe ratio 1.8-2.3 (n=8). Anal lobes without fringe. Length of anal macrosetae 0.73-0.99x length of the anal lobe (n=4) (052h.jpg).
(Linked adult male: Langton and Pinder, 2003a)

Species keys out at Page 707: Orthocladiinae 119 Eukiefferiella of the Text Key.

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

Ecological notes
Streams and northern lakes.