Hydromanicus seth Malicky, 1993

Mey, Wolfram & Malicky, Hans, 2021, Records and descriptions of caddisflies from Natma Taung National Park and adjacent localities in the Chin Hills of Myanmar (Insecta, Trichoptera), Deutsche Entomologische Zeitschrift 68 (1), pp. 139-164 : 139

Hydromanicus seth Malicky, 1993 Figs 3K , 5G-J

Material.

1 ♂, 1.5 km west of Hakha , 2260 m a.s.l., 24.v.2001, leg. S. Naumann ; 1 ♂, 9 miles west of Mindat , 1960 m a.s.l., LF, 9.x.2002, leg. W. Mey (pinned) , cleared abdomen in glycerine vial; 4 ♂, 8 km west of Mindat , 1914 m a.s.l., 30.vi.2008, leg. S. Naumann ; 1 ♂, 14 km west of Mindat , 1910 m a.s.l., 10.xi.2015, cleared abdomen in glycerine vial, leg. S. Naumann (pinned).

Remarks.

The species belongs to the H. truncatus group sensu Oláh and Johanson 2008b. H. seth is characterised by the subapically-excised harpagones, the bulbous apex of the phalloteca and the endothecal processes, which are divided into a dorsal, sclerous and a ventral, membranous part. Congeneric species with similar, non-circular, endothecal processes are H. asor Malicky, 1993 and H. eleasar Malicky, 1993, both described from Myanmar too. The latter two differ from H. seth by the form of the second segment of the inferior appendages, which are variably excised subapically in H. seth (Fig. 5H ).

Figures

Figure 3. Images of adult caddisflies from the Chin Hills. A. Rhyacophila scissoides; B. Rhyacophila parva; C. Glossosoma malayanum; D. Chimarra nahesson; E. Kisaura longispina; F. Diplectrona aurovittata; G. Diplectrona burha; H. Diplectrona sanguana; J. Hydromanicus abdominalis sp. nov., ♂ holotype; K. Hydromanicus seth. Scale bars: 0.2 mm.

Figure 5. Male genitalia. Chimarra aberrans, A. Lateral, B. Ventral, C. Dorsal; Chimarra argax; D. Lateral, E. Ventral, F. Dorsal; Hydromanicus seth; G. Lateral, H. Dorsal, J. Ventral. Scale bars: 0.5 mm (A. - C.); 0.25 mm (D. - F.); 0.4 mm (G., H., J.).