Tinodes kebala, Johanson, Kjell Arne & Oláh, János, 2008

Johanson, Kjell Arne & Oláh, János, 2008, Description of seven new Tinodes species from Asia (Trichoptera: Psychomyiidae), Zootaxa 1854, pp. 1-15 : 9

Tinodes kebala , new species

Fig. 14–17

This species is distinguished by the strongly dorsally expanded tergite IX with posterolateral band of posterad oriented megasetae; and in the paraproctal process chaetotaxy involving an anterior pair of extremely long megasetae that are directed dorsad and loop mediad over tergite IX, and a series of shorter megasetae of different thickness along the lateral margin.

Male genitalia ( Fig. 14–17 ). In lateral view, sternite IX with 1 pair sharply triangular, anterad oriented processes at anteroventral corner ( Fig. 14 ); posteroventrally strongly produced into long, rectangular lobes. Tergite IX originating from dorsal basis of superior appendages about at mid-height of sternite IX; ventral margin weakly concave along its length ( Fig. 14 ); developing into large dorsal, rectangular process and bifid apex ( Fig. 14, 15 ); dorsal process with series of short megasetae in band immediately before posterior margin ( Fig. 14 ); apices with laterad oriented spine ( Fig. 15 ). Superior appendages originating at about mid-height of posterior margin of sternite IX; slightly laterally flattened; with setae confined to distal two-thirds; slightly bent posterad immediately after mid-length ( Fig. 14 ); diverging in dorsal view ( Fig. 15 ). Inferior appendage slightly longer than superior appendages ( Fig. 14 ); inferior appendage basal plate apodeme slender, with gradually widening anterior apex in lateral view ( Fig. 14 ); very slender, needle-shaped in dorsal and ventral views ( Fig. 15, 17 ); posterior part 4-branched in lateral view, ( Fig. 14 ); dorsal branch broadest with rounded apex; with 2 pairs megasetae at lateral surfaces; ventral branch forming ridge on coxopodite; in ventral view visible as single, slender process along longitudinal axis of genitalia ( Fig. 17 ). Paraproctal process complicated, originating from dorsal apex of sternite IX; divided into long central branch and pair of slightly longer lateral branches. Central branch proximally straight with ventrad bending apex in lateral view ( Fig. 14 ); main part forming sheath with central, dorsad curving tube and apparently single long, pointed, sclerous processes on left side ( Fig. 14, 15 ). Lateral branches of paraproctal process straight along their lengths ( Fig. 10 ); running parallel apicad ( Fig. 16 ); anterior pair of megasetae extremely long, proximally oriented anterodorsad before curving dorsad and looping mesad and crossing over tergite IX ( Fig. 14, 15, 16 ); 2 pairs very thick megasetae present at dorsal margin further distally ( Fig. 14, 16 ) followed by lateral row of about 8 megasetae of various thickness ( Fig. 14, 16 ). Coxopodites oval in lateral view ( Fig. 14 ); ventrally fused mesally before half-length ( Fig. 17 ); ventral apices with irregular surfaces ( Fig. 14, 17 ); apical, smooth processes present immediately above ventral apices, oriented posteromesally, without setae ( Fig. 14, 17 ). Harpagones ( Fig. 14, 17 ) very short, setose.

Holotype male: MALAYSIA: Perak, Halong str., 19.xi.1993, light [G. S. Robinson] (OPC, in alcohol).

Etymology. kebala , from “ kebala ” meaning single in Sanskrit, referring to the single, prominent dorsal lobe of tergite IX.

Figures

FIGURES 14 – 17. Tinodes kebala, new species, holotype. 14 — genitalia, lateral; 15 — genitalia, dorsal; 16 — paraproctal process, dorsal; 17 — genitalia, ventral. Scale bar = 0.1 mm refers to Fig. 14 – 17.

FIGURES 10 – 13. Tinodes gapbona, new species, holotype. 10 — genitalia, lateral; 11 — detail of posterior part of paraproctal process, lateral; 12 — genitalia, dorsal; 13 — genitalia, ventral. Scale bar = 0.1 mm refers to Fig. 10 – 13.