Form described by Langton, 1991
Diagnosis
Exuviae (1.8) 4.1-4.7mm long (n=5); small specimen collected in July; large specimens in April.
Cephalothorax: Thoracic horn absent.
Abdomen: Anterior transverse tooth rows on tergites II-VII, tergites II-VIII with a posterior transverse row or narrow band of strong points, no armament between the anterior and posterior transverse bands (067i.jpg , 067j.jpg). Tergite VIII antero-laterally with a patch of points in which some larger teeth form a diagonal line from the anterior corner inwards for about half segment length. Sternite VIII (and to a lesser extent VII) with anterior half armed with strong points.
Anal segment: Anal lobes not drawn out into a point, each lobe folded upwards, crest on elevated margin of lobes well-developed, the teeth strong and extending to the insertion of the anal macrosetae (067k.jpg). Anal lobes without fringe. Three anal macrosetae per lobe, (40-)60-75µm long (n=4), length 0.19-0.21(-0.33)x length of the anal lobe (n=4).
Form keys out at Page 815: Orthocladiinae 227 Pseudorthocladius of the Text Key.
Distribution
Iberian Peninsula.
(For more information see module IdentifyIt – file: Orthocladiinae).
Ecological notes
Streams.