Paroxyethira koegi, Wells & Johanson, 2012

Wells, A. & Johanson, K. A., 2012, Review of the New Caledonian species of Paroxyethira Mosely, 1924 (Trichoptera: Hydroptilidae), Zootaxa 3478, pp. 330-344 : 333

Paroxyethira koegi , new species

Figs 6–9

Superficially very similar to P. dumagnes , but males distinguished by the spine on the phallic apparatus, more asymmetric gonopods, and elongate phallic sheath.

Male antennae each with 20–21 flagellomeres.

Forewing length. Male 1.8–1.9 mm (n=5).

Male genitalia ( Figs 6–9). Short sharp spur present medially on abdominal sternite VII. Median process on abdominal sternite VIII stoutly spatulate, length about 5 times width at 1/2 length. Abdominal sternite and tergite IX fused, laterally only slightly produced posteriorly, dorsally deeply concave. Gonopods inserted asymmetrically; right well to left of centre; both bearing brushes of stout black setae. Phallic apparatus ( Fig. 9) slender, elongate, constricted at 1/4 length at which constriction arises short, threadlike titillator; short sharp spine at about 2/3 length. Phallic sheath ( Fig. 8) short, broad at base; extended posteriorly as elongate, curving sheath, about 1/2 length of gonopods, with setae apically; basal structures difficult to interpret.

Female not associated with certainty.

Holotype male: Province Nord, Ponandou Tiôgé River at Kögi , 3.9 km SSW Touho, 20°49.043'S, 165°13.551'E, 25 m, 26.xii.2003, light trap, loc#100, leg. K.A. Johanson (on slide KAJ in MNHP).

Paratypes: Same data as for holotype – 4 males ( SMNH) .

Etymology: Koegi, named after the type locality.