Parakiefferiella smolandica

Author: (Brundin, 1947)

Diagnosis (in part after Tuiskunen, 1986a - in italics)
Exuviae 2.7, 2.8mm long (n=2).
Colour: Slightly brownish, cephalothorax somewhat darker than abdomen.
Cephalothorax: Thoracic horn 75, 80µm long (n=2), oval, with sparse strong teeth to base (058c.jpg); ThR 1.6, 1.7 (n=2).
Abdomen: Tergite II with anterior and medial group of points well separated, anterior group not divided medially. Tergites III-V with anterior pointsgroup in U-shaped formation. Anterior transverse band of tergites medially widely broken; median patches well-developed on tergites III-V, joined laterally to the anterior band (058d.jpg). Tergite VI with anterior point group with very weak points divided in two lateral groups, medial group consisting of 2 patches of (few) very strong points. Tergite VII with median point patch represented by minute points. Tergite VIII similar to VII but points more numerous. All sternal points extremely fine, pattern as in Parakiefferiella fennica. Pedes spurii B present and usually conspicuous on segment II and III; well-developed pedes spurii A on sternites IV-VII. Abdominal segments with, at most, four lateral setae, short and straight.
Anal segment: Anal lobe ratio 3.1 (n=1). Anal lobes without fringe. Length of anal macrosetae 0.37, 0.44x length of the anal lobe (n=2). Apical projections of anal lobes at most a little longer than the distance from their origin to the base of segment IX. Apices of anal lobes at most with vague indications of teeth.
(Linked adult male: Langton and Pinder, 2003a)

Species keys out at Page 747: Orthocladiinae 159 Parakiefferiella of the Text Key.

Widespread in Europe (not Mediterranean).
(For more information see module IdentifyIt – file: Orthocladiinae).

Ecological notes
Lakes; freshwater to brackish. In Finland the species seems to favour oligotrophic lakes, but is also found in mesohumic lakes; it is the only Parakiefferiella recorded from the brackish water of the Gulf of Finland. In Lake Inarijärvi adults mainly emerge in July.