Xenophyes goniomus Burckhardt, sp. nov.

(Figs. 12, 13, 23, 29, 36, 43, 50, 57, 66, 67, 76, 82)

Material examined. Holotype 3, New Zealand: South Island: BR, Paparoa Range, Mount Dewar, 945 m, 10.xii.1969, moss (J. T. Townsend) (dry mounted, NZAC).

Paratypes. New Zealand: South Island: 2 3, 6 Ƥ, BR, Victoria Forest Park, Rahu Scenic Reserve, Rahu Creek, 700 m, 18.ii.1992 (D. Burckhardt), #55 (dry mounted, MHNG); 5 3, 8 Ƥ, BR, Lewis Pass, periphyton, viii.2002 (G. W. Gibbs) (dry mounted, 70 % ethanol, NHMB); 6 3, 6 Ƥ, BR, Paparoa Range, Mount Dewar, 945 m, 10.xii.1969, moss (J. I. Townsend) (dry mounted, LUNZ, MONZ, NZAC); 17 3, 11 Ƥ, 10 nymphs, MC, Arthur’s Pass National Park, Bealey Valley, 940 m, 16.ii.1992 (D. Burckhardt), #51a (dry mounted and 70 % ethanol, MHNG); 6 3, 3 Ƥ, 2 nymphs, MC, Arthur’s Pass, 860 m, 31.iv.1985, moss in Nothofagus solandri forest (J. W. Early), 85/4 (dry mounted, LUNZ, NZAC).

Description. Adult. Coloration. Ochreous; clavus brown, remigium lighter.

Structure. Body, in dorsal view, narrowly ovoid. Head slightly indented in middle of fore margin, each half of fore margin slightly convex; anterior rim indistinctly delimited from membrane; areolae, in longitudinal body axis, relatively short; eyes weakly recessive; hind margin of eye and postero-lateral margin of head forming an evenly rounded depression. Pronotum with poorly defined median longitudinal ridge, weakly, irregularly punctate posteriorly and postero-laterally. Paranota relatively small, angular anteriorly and posteriorly, with weakly curved lateral margins; punctate postero-ventrally. Tegmen with vein M reduced basally, basal radial cell rarely with additional veins in apical half of vein M+CuA. Male and female terminalia as in Figs. 29, 36, 43, 50, 57, 66, 67. Male anal tube broadly oval, in dorsal view, widest in basal third, with weakly curved lateral margins. Pygophore with comparatively long and narrow median posterior tooth; postero-lateral edges distinctly angular. Parameres long, subacute apically. Aedeagus, in anterior view, with narrowly rounded head distally which is slightly narrowed subapically, and subquadrate antero-proximal lobes; posterior outline of neck, in profile, sinuous; spines on neck absent. Female tergite 9 with ventral margin weakly curved in apical third. Ventral teeth of valvulae 1 conspicuously large.

Measurements and ratios in Tables 1 and 2.

Fifth instar (Fig. 76). Anterior head margin weakly convex or almost straight. Posterior lobes of abdominal segment 9 stout, blunt apically; ventrite 9 covered with microscopical spinules in addition to setae; rear margin of male genital capsule, in ventral view, ending medially more distally than laterally (Fig. 82). Measurements and ratios in Table 3.

Etymology. From Greek γωνɩος = angular and ωμος = shoulder, referring to the angular paranotal lobes.