Diamesa pe4

Form described by Langton, 1991

Diagnosis (n=1)
Exuviae 6.3mm long.
Cephalothorax: Frontal setae 193µm long. Thoracic horn 245µm long; ThR 12.2. Precorneal setae 2,3: 150; 160µm long.
Abdomen: Hook row II absent. Abdominal segments, dorsally, ventrally and laterally, and many of the conjunctives as well, covered with reticulation. Posterior tooth row of sternite III widely broken medially, present only externally to seta V3. Total dorsal teeth 106+. Total ventral teeth 100+. Shagreen points on tergite III 5µm long. Relative length IX:VIII:VII 1.0:0.56:0.93; relative width IX:VIII:VII 1.0:1.3:1.6. Segment VIII 3.25 and segment VII 2.3 times as wide as long. Lateral setae 1-4 of segment III 68; 63; -- 55; 50µm long.
Anal segment: Anal lobe ratio 1.5. Each anal lobe with 3 macrosetae; length macrosetae 0.63x lobe length.

Form keys out at Page 555: Diamesinae 31 Diamesa of the Text Key.

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

Ecological notes
Tatra mountains.