Oxyethira (Pacificotrichia) mouirange, Wells, Alice & Johanson, Kjell Arne, 2015

Wells, Alice & Johanson, Kjell Arne, 2015, Review of New Caledonian species of Oxyethira Eaton, with description of 17 new species, and new records for Hydroptila Dalman and Hellyethira Neboiss (Trichoptera, Hydroptilidae), ZooKeys 530, pp. 37-90 : 58-59

Taxon classification Animalia Trichoptera Hydroptilidae

Oxyethira (Pacificotrichia) mouirange sp. n. Figs 47-49, 102

Diagnosis.

A member of Pacificotrichia subgenus, but distinguished from other species by males with discrete, elongate, sub-triangular gonopods.

Description

male. Antennae with 24-25 flagellomeres; flagellomeres without sensilla placodea, rectangular in profile; anterior wing length 1.6-1.7 mm (n=2); tibial spurs 0,3,4; abdominal sternite VII with small sharp median spur.

Male, genitalia. In ventral view with abdominal segment VIII ovoid, apical margin with wide V-shaped excavation medially; without midventral apodeme; in lateral view, with apical margins broadly rounded; abdominal segment IX almond shaped. Gonopods sharply triangular; subgenital processes fused, forming subtriangular plate that is sharply triangular in lateral view; setose lobes less than half length of plate. Phallic apparatus extremely long, apically bifid, split into two equal-length sections.

Material examined.

Holotype. Male (on slide), New Caledonia, Province Sud, Monts Kwa Ne Mwa, on road between Noumea and Yaté, 2.0 km E Pic Mouirange, 22°12.356'S, 166°40.798'E, 220 m, 7-16.xi.2003, Malaise trap, loc#014, leg. K.A. Johanson (MNHP).

Paratypes. 2 males (on slides, one headless), collection data as for holotype (NHRS); 1 male, Province Sud, Sarraméa, Xwê Wya River, 21°38.318'S, 165°51.582'E, 127 m, 17-18.i.2004, light trap, loc#121, leg. K.A. Johanson (NHRS).

Etymology.

Named for Mt Mouirange near which the type was collected.

Remarks.

Taken only at two well-separated sites in the south of the island (Fig. 102).