Cyphomella pe1

Form described by Langton, 1991

Diagnosis (n=1)
Exuviae 4.0mm long (108-1.jpg).
Cephalothorax: Cephalic tubercles small, narrow conical; frontal setae 18µm long (108f.jpg).
Abdomen: Length hook row II 0.46x width tergite; 39 hooks. Tergite II without armament; tergites III-VI with a transverse band of strong points just posterior to setae D3 (108g.jpg). Pedes spurii B of segment II present. Comb of segment VIII a row of narrow elongate teeth, 23/25µm wide, set on the edge of a semicircular pad on the apico-lateral corner of the segment; combs with 5/5 marginal teeth (108i.jpg). (The teeth are bluntly rounded at the apex, and an occasional tooth may occur further forward between the bases of lateral taeniae 3 and 4.) Lateral taeniae of segments V-VIII: 4,4,4,4.
Anal segment: Fringe of anal lobe with 35/35 taeniae (108h.jpg).

Form keys out at Page 239: Chironomini 136 Cyphomella of the Text Key.

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

Ecological notes
A river.