Paracladius conversus

Author: (Walker, 1856)

Diagnosis (in part after Hirvenoja, 1973a - in italics)
Exuviae 5.6-7.4mm long (m=6.6mm, n=28) (081-2.jpg).
Cephalothorax: Frontal setae 170-255µm long (n=4) on well-developed cephalic tubercles. Thoracic horn 240-385µm long (m=289µm, n=25), covered throughout its length with short spines; ThR 2.9-6.4 (m=4.0, n=25). All precorneal setae grouped near the thoracic horn. Dorsocentral setae without great differences in breadth. Thorax dorsally with dense short toothlets; more laterally granulate (081e.jpg).
Abdomen: Hook row II more than 0.35x width of segment II. Median point patches of tergites III-V trapezoidal, widest posteriorly, the anterior adhesion marks at most just touched by the antero-lateral corners of the patch (081f.jpg). Pedes spurii B II present; Pedes spurii A on sternites IV-VI. Dorsal setae I-VIII: 4,4,4,5,5,5,5,2(1); Lateral setae I-VIII; 1,3,3,3,3-4,3-4,4,4(5); Ventral setae I-VIII: 1,3-4,4,4,4,4,4,0-1; lateral seta 4 on VIII at most slightly longer and about as strong as the other lateral setae, lateral most dorsal seta on VIII almost in line with lateral setae (apparent lateral seta 5).
Anal segment: Anal lobe ratio 1.3-1.6 (m=1.5, n=21). Anal lobes without fringe, very rarely with additional teeth laterally or apically. Length of anal macrosetae 0.63-0.85x length of the anal lobe (m=0.74, n=21) (081f.jpg).
(Linked adult male: Langton and Pinder, 2003a)

Species keys out at Page 886: Orthocladiinae 297 Paracladius of the Text Key.

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

Ecological notes
Standing and flowing water.