Paraphaenocladius irritus

Author: (Walker, 1856)

Diagnosis (in part after Saether and Wang, 1995a - in italics)
Exuviae 2.5mm long. (n=1)
Cephalothorax: Frontal setae and warts absent. Thoracic horn 229µm long, 15µm wide, toothed apically, horn 2.65x as long as longer terminal seta on anal lobe. Precorneal setae 60-75µm long. Dorsocentrals each about 25µm long, distance between setae 1 and 2: 28µm, between setae 2 and 3: 109µm, between setae 3 and 4: 32µm. Wing sheath without nose, with 35 pearls.
Abdomen: Hook row II absent. Tergite I bare, II-VI with extensive shagreen, VII-VIII with strong median shagreen. Posterior points on only tergites VI-VIII obviously enlarged. Sternites I-III bare, IV-VIII with posterior shagreen. Shagreen grading over into small posterior spines distinct on tergites VI-VIII and sternites VI-VII (female). Weak pedes spurii B present on segment II.
Anal segment: Tergite IX with a few weak antero-median points; sternite IX bare. Anal lobes usually folded inwards and so appearing parallel-sided and apically truncate. Anal lobe with 1 basal seta 56µm long, 1µm wide; 2 terminal setae 86µm and 60µm long, 3.0µm and 1.9µm wide; shorter terminal seta 0.70x as long and 0.63x as wide as longer seta. Apex of anal lobe with 11 spines including 3 stronger ones.
(Linked adult male: Langton and Pinder, 2003a)

Species keys out at Page 807: Orthocladiinae 219 Paraphaenocladius of the Text Key.

Palaearctic species: widespread in Europe, eastern Mediterranean.
(For more information see module IdentifyIt – file: Orthocladiinae).

Ecological notes