Form described by Langton, 1991
Diagnosis
Exuviae 2.3-3.7mm long (n=3).
Cephalothorax: Thoracic horn absent. Median antepronotal setae 1,2: 35; 30µm long; precorneal setae 1-3: 65; 40; 40µm long (n=1).
Abdomen: Tergite I unarmed. Anterior and posterior points of tergites considerably larger than the median points (071d.jpg); on VI-VIII the band of small points is as wide or wider than the anterior band of stronger points. Postero-median points of tergites obviously smaller than those in front and behind, resulting in a transversely striped appearance. Conjunctives armed both dorsally and ventrally; ventral conjunctival transverse point bands on IV/V-VII/VIII about half the preceding segment width or more, that on IV/V over three times the width of that on III/IV.
Anal segment: Anal lobes without fringe.
Form keys out at Page 838: Orthocladiinae 249 Pseudosmittia of the Text Key.
Distribution
Great Britain and the Iberian Peninsula.
(For more information see module IdentifyIt – file: Orthocladiinae).
Ecological notes
R. Thames and a lake (Grafham Water), England.