Cryptotendipes pseudotener

Author: (Goetghebuer, 1922)

Exuviae 3.6-4.0mm long (n=3).
Cephalothorax: Cephalic tubercles 15, 20µm long (n=2). Frontal setae 40µm long (n=1). One branch of the thoracic horn is very long and stiff, extending forwards for over half the exuvial length and not itself branched for its proximal half, the other initial branches small and clustered around its base. Posterior thoracic mound weakly indicated.
Abdomen: Hook row II medially interrupted, length of row 0.09 (0.05 gap) 0.07x width tergite (n=1); hooks 4/4-5/6 (n=3). Dorsal abdominal armament restricted to large points set on the apices of posterior transverse mounds on tergites III-VI, mounds swollen on each side of mid-line on at least tergites III-V; continuous on VI (093d.jpg). Ventrally toothed mounds present on sternites II-V. Comb of segment VIII 125, 130µm long (n=2), thorn-like, set close behind the fourth lateral taenia. Lateral taeniae of segments V-VIII: 4,4,4,4.
Anal segment: Fringe of anal lobe with 26-29 taeniae (n=3), all similarly long (093e.jpg).
(Linked adult male: Langton and Pinder, 2003a)

Note: As Cryptotendipes pe1b this material was tentatively referred to Cryptotendipes nigronitens (Edwards) in Langton, 1984, a species still without associated pupa.

Species keys out at Page 108: Chironomini 5 Cryptotendipes of the Text Key.

Holarctic species: widespread in Europe.
(For more information see module IdentifyIt – file: Chironominae).

Ecological notes