Paroxyethira anomala Wells &amp; Johanson 2012, new species
Creators: name: Wells, A.
name: Johanson, K. A.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Hydroptilidae
Paroxyethira
Paroxyethira anomala

description: <i>Paroxyethira anomala</i>, new species Figs 29–32, 42 The male of <i>P. anomala</i> is recognised by the short, widely separated gonopods that have only sparse fine setae, in contrast to those of the only other known New Caledonian species with similar short gonopods, <i>P. nigrispina</i>, in which the left gonopod has a brush of dense setae. <i>Paroxyethira anomala</i> has only a very short median process on abdominal segment IX, not VIII, and a short, broad phallic sheath, while <i>P. nigrispina</i> has the median process on VIII and far longer than wide, and an elongate, cylindrical phallic sheath. The female of <i>P. anomala</i> is more similar in form to those illustrated by Leader (1972) for his New Zealand species <i>P. hintoni</i> and <i>P. kimminsi</i>: sternites VII and VIII are fused to form a symmetrical cone, shallowly cleft apico-ventrally, with a small acute ‘spine’ in the cleft directed posterad. Male antennae each with 23 flagellomeres; female antennae each with 19 flagellomeres. Forewing length. Male 1.9–2.3 mm (n=10); female 1.9–2.3 mm (n=10). Male genitalia (Figs 29–32). Sternite VII with median short sharp spur. Process on abdominal sternite VIII broadly rounded; length about half basal width. Abdominal sternite IX truncate medially. Tergite IX deeply concave apically; laterally scarcely produced distally. Gonopods short, length slightly more than 2x basal width; without dark setae or sclerotised teeth. Phallic apparatus (Figs 31, 32) stout in comparison with other congeners; elongate; constricted at just less than 1/2 length, at which constriction short, threadlike titillator arising; pair of spines present subapically, with one stout and angled, other slender and sinuous. Phallic sheath forming complicated series of mostly sclerotised structures terminating in stout subapical, left-pointing spur and rounded plate bearing 2 rather prominent setae on its left; in lateral view phallic sheath appearing as broad structure with dorsally directed spur. Female terminalia (Fig. 42). Abdominal sternites VII–VIII fused to form stout, symmetrical cone; apically cleft; surface disrupted by pronounced sockets of scattered setae. Segment X not divided apically. <b>Holotype male:</b> Province Sud, Monts Kwa Ne Mwa, on road between Noumea and Yaté, Rivière des Pirogues, 22°11.225'S, 166°43.338'E, 100 m, 7.xi.2003, light trap, loc#016, leg. K.A. Johanson (MNHP). <b>Paratypes:</b> Same data as for holotype – 23 males, 16 females (one on slide) (SMNHH); Province Nord, 50 m upstream bridge on Hienghène-Tnèdo road, 3.9 km S summit of Mt. Tnèda, 2.2 km E Tnèdo, 20°43.085'S, 164°49.928'E, 29 m, 7.xii.2003, light trap, loc#071, leg. K.A. Johanson, 1 male (SMNH). <b>Etymology:</b> <i>Anomala</i>, descriptive of the unusual male genitalia.
description: Published as part of <i>Wells, A. &amp; Johanson, K. A., 2012, Review of the New Caledonian species of Paroxyethira Mosely, 1924 (Trichoptera: Hydroptilidae), pp. 330-344 in Zootaxa 3478</i> on pages 340-341
description: {"references": ["Leader, J. P. (1972) The New Zealand Hydroptilidae (Trichoptera). Journal of Entomology (Series B), 41, 191 - 200."]}