Tinodes kerinciana, Oláh & Johanson, 2010

Oláh, János & Johanson, Kjell Arne, 2010, Fifteen new Trichoptera (Insecta) species from Sumatra, Indonesia, Zootaxa 2618 (1), pp. 1-35: 11-12

publication ID

http://doi.org/ 10.11646/zootaxa.2618.1.1



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scientific name

Tinodes kerinciana

new species

Tinodes kerinciana   , new species

Figs 16–18 View FIGURES 16–18

Due to the ovoid gonocoxites, triangular sternite IX and tergite IX, and the harpagones being divided into filiform branches, this species resembles the Indonesian species Tinodes flavopunctatus Ulmer   , T. ihalauwi Malicky   , T. katreus Malicky   , T. kepheus Malicky   , T. prihatmoi Malicky, T   , sumatrensis Ulmer   and T. timotii Malicky. It   most strongly resembles T. sumatrensis   , but has differently-shaped harpagone branches.

Male. Body generally medium brown. Setal warts on head and thorax light brown. Grooves dark brown, cranial areas medium brown, setal warts light brown. Maxillary palp formula I-IV-III-II-V, 2nd segment almost as long as 5th segment. Cephalic warts represented by single rounded, frontal medial compact setose wart; pair of almost-fused, slightly horizontally elongate clypeal compact setose warts; and four pairs of setose warts visible on head dorsum: large, wide, postgenal compact setose warts on postgenal area; large, compact occipital setose warts; vertexal ocellar compact setose warts; and vertexal lateroantennal compact setose warts fused with vertexal medioantennal compact setose wart. Coronal and occipital grooves forming dark brown lines on head dorsum; coronal grooves running obliquely between occipital and ocellar setal warts. Bifurcation of frontal grooves visible on head dorsum as merging coronal grooves, anterior section of continuation visible on face, displaced mesally by enlarged membranous antennal sockets. Compact setal warts absent on cervix and cervical sclerites. Pair of lateral cervical sclerites each with slender anterior arm gradually broadening from midway, broadest before apex, articulating anteriorly with corresponding occipital condyle above posterior tentorial pit; fused with posterior cervical sclerite. Posterior cervical sclerites each reaching prothoracic episternum, articulating with weakly sclerotized anteromedian band of prothoracic eusternum by very thin ventral intercervical sclerites. Swollen proepisternal setal wart absent.

Spur formula 2,4,4.

Male genitalia. Segment IX with broadly triangular sternite and narrowly triangular tergite in lateral view; tergite IX smooth, ellipsoid in dorsal view, dark, with granulated surface densely packed with microtrichia; roofing phallic apparatus and dorsal paraproctal processes. Sternite IX with anteroventral and posteroventral angles produced, rounded; dorsoapical angles obtuse at meeting points with tergite IX, cerci, paraprocts, and median bridge. Median bridge sclerous, connecting phallic apparatus and sternite IX. Segment X absent. Cerci setose, sigmoid, elongated, each with basal 1/3rd narrow, bending laterally. Paraprocts with dorsal paraproctal processes longer than cerci, arching horizontally in lateral view, basal part bending 90° to fulcrum; armed with about 10 pairs of megasetae with well-developed alveoli: 3 pairs of megasetae present on mesoventral apical part; 1 pair at mid-length on mesoventral margin; 1 pair on dorsoapical margin; and 5 pairs in lateroventral and apical position. Gonopods large, with ovoid coxopodites and filiform, branched harpagones; basal plate with long, pointed, anterior apodeme. Coxopodites each with long setae concentrated on dorsoposterior margin. Harpagones smooth, slender, Y-shaped in lateral view, each with base connected with 1 dorsal and 1 ventral filiform, mesad-directed process; ventral, mesad-directed, filiform process setose. Phallic apparatus weakly discernible, located between paraproctal processes, covered by cerci and paraprocts; apex bifid; dorsal arm hook-shaped; basal part of phallotheca directed ventrad, reaching median bridge of sternite IX. Fulcrum on each side discernible as fusing point of cercus, paraproct, tergite IX and sternite IX. Phallobase-supporting median bridge fused mesally and anteriorly to sternite IX.

Holotype male: INDONESIA (Sumatra): Kerinci National Park , “W” waterfall, 1500 m, 5.vii.2008, light trap [J. Oláh, Jr.]—(OPC, in alcohol).  

Distribution: Indonesia (Sumatra).

Etymology: Kerinciana, named after the type locality.

Remark: Some assumed females of this species are kept together with the holotype.