Euryhapsis pe2a

Form described by Langton, 1991

Diagnosis (n=1)
Exuviae 5.7mm long.
Cephalothorax: Frontal setae absent. Thoracic horn missing, or absent? Thorax with a weak tubercular mound mid-dorsally close to suture. All four dorsocentral setae closely approximated.
Abdomen: Armed tergites with a conspicuous pale posterior transverse band or row of large points. Tergites without a median transverse row of strong points. Apical point bands present only on tergite II. Sternite VIII of male armed with a row of strong points on a pair of posterior swellings; of female with these points elevated on strongly projecting flaps (064d.jpg). Lateral setae of segments II-VI 3 or 4, small, 50-80µm long. At least one lateral seta on segment VII, and all those on segment VIII taeniate.
Anal segment: Anal lobes rounded. Anal lobe ratio 1.5. Fringe taeniae 0.87x lobe length. Anal macrosetae displaced forwards on the anal lobes; length of setae 0.37x lobe length.

Note: Possibly a variety of Euryhapsis pe2.

Form keys out at Page 630: Orthocladiinae 42 Euryhapsis of the Text Key.

(For more information see module IdentifyIt – file: Orthocladiinae).

Ecological notes
A montane lake: Chiemsee, Germany.