Author: Edwards, 1933
Diagnosis (n=1, material in coll. ZSM)
Exuviae 6.1mm long.
Cephalothorax: Thoracic horn 400µm long; ThR 13. Precorneal setae 2,3: 218; 150µm long.
Abdomen: Hook row II absent. Total dorsal teeth II-VIII 56. Total ventral teeth III-VII 42+. Shagreen points of tergite III 8µm long. Relative length IX:VIII:VII 1.0:0.7:1.0. Relative width IX:VIII:VII 1.0:1.4:1.7. Segment VIII 3.0 and segment VII 2.6 times as wide as long. Lateral setae 1-4: 163; 165; -- 165; 95µm long.
Anal segment: Anal lobe ratio 1.4. Each anal lobe with 3 macrosetae; length macrosetae 0.8x lobe length.
See note under Diamesa pe2
Species shall key out at Page 571: Diamesinae 47 Diamesa of the Text Key.
Distribution
Palaearctic species: widespread reports from Europe and NW Africa.
(For more information see module IdentifyIt – file: Other subfamilies).
Ecological notes
Running water.