Ngullamiris, Symonds & Cassis, 2018

Symonds, Celia L. & Cassis, Gerasimos, 2018, Systematics And Analysis Of The Radiation Of Orthotylini Plant Bugs Associated With Callitroid Conifers In Australia: Description Of Five New Genera And 32 New Species (Heteroptera: Miridae: Orthotylinae), Bulletin of the American Museum of Natural History 2018 (422), pp. 1-229 : 206-212

Ngullamiris , new genus

TYPE SPECIES: Ngullamiris whadjuk , n. sp., by original designation.

DIAGNOSIS: Defined by the following characters: moderately elongate body, moderately large eyes; male with relatively narrow pronotum; dorsum with moderately dense distribution of simple setae; forewing membrane without subcuneal clear spot, forewing membrane veins colored (fig. 12); genital segment and all components of male genitalia small in relation to rest of body, pygophore tapering posteriorly (fig. 77A); pygophore with strongly rounded convex ventral margin to genital opening and strongly rounded concave dorsal margin, lacking tergal processes (fig. 75H); phallotheca and aedeagus very small, situated cupped within pygophore opening and not extending beyond ventral margin of opening, within curved parameres at rest (figs. 75H, 76A, C, 77A); parameres situated along ventral margin of pygophore, cupping phallotheca and meeting medioventrally, extending only slightly beyond ventral pygophore margin (figs. 75H, 76B); ventral surface of pygophore with short spinelike setae (fig. 76B, D); left paramere modified L-shape, apophysis short (fig. 77B, C); right paramere club- or C-shaped (figs. 76A, 77D); phallotheca simple with sides retracted, membranous dorsal and apical margins (figs. 76C, 77E); aedeagus with three sclerotized endosomal spicules, dorsal to secondary gonopore (figs. 15, 77); proximal endosomal spicule (PES) left dorsolateral to secondary gonopore, unbranched, base broad, tapering to fine ribbonlike, downcurved apex, margins smooth (fig. 77F); second dorsal endosomal spicule (DES2) right dorsolateral to secondary gonopore, bifurcate, apex downcurved (fig. 77F); first dorsal endosomal spicule (DES1) dorsal to DES2, shorter than DES2 and PES (fig. 77F), with basal hook; female vestibulum membranous (fig. 78A); ventral labiate plate (VLP) with mesial surface sparsely spiniferous, without lateral lobes (fig. 78A); interramal sclerites (IRS) joined medially (fig. 78B).

DESCRIPTION: Male: Macropterous, body elongate, lateral margins parallel (fig. 12). COL-

ORATION: Antennae monocolorous; wing membrane uniformly translucent brown, without subcuneal clear spot (fig. 12A). SURFACE AND

VESTITURE: Dorsum smooth, weakly polished, with moderately dense distribution of semierect simple setae, some more elongate and bristlelike on head and along lateral dorsal margins; antennae with dense distribution of moderately short simple setae; AI also with few (~3) elongate erect spinelike setae; pygophore, ventral surface proximate to genital opening with short, dark, spinelike setae (figs. 76B–D); femora with some longer, erect, spinelike setae; hind tibiae with several rows of minute dark spinulae; sparsely distributed tibial spines, light brown. STRUC- TURE: Head weakly to moderately expanded anteriorly, eyes bulbous, extending from outline of head (figs. 75A–C); antennae with AI at least subequal to vertex width; pronotum trapezoidal, short, callosite region weakly defined, posterior margin slightly rounded (fig. 75C, D); hemelytra and legs elongate (fig. 12). GENITALIA: Pygophore: Transverse, narrowing considerably posteriorly; dorsal margin strongly concave, lacking tergal processes; ventral margin of genital opening convex, round; phalloguide round and extending just beyond ventral margin of opening, with small, round lobe ventrad to right paramere articulation, left paramere positioned along ventral margin of pygophore; right paramere mostly visible with only base hidden within pygophore; parameres visible slightly beyond ventral pygophore margin, meeting medially, cupping phallotheca; phallotheca and aedeagus small, situated within opening of pygophore and not extending beyond ventral margin of opening (figs. 75H, 76A–D, 77A). Left paramere: Modified L-shape; base short; sensory lobe round; apophysis weakly curved, broad, apex truncate (figs. 75H, 77B, C). Right paramere: Club shaped to C-shaped, subovate in lateral view; apex curved inward and round, mesiolateral surface excavate; subapical dorsal margin round, unexpanded (figs. 76A, 77D). Phallotheca: Simple; lightly sclerotized; golden color; opening large, distal to medial; apex round; lateral/dorsal and apical margins reduced and membranous (fig. 76A, 77E). Aedeagus: Three endosomal spicules, positioned dorsal to secondary gonopore; spicule arrangement (fig. 11): PES and DES2 wrapped sheathlike partially around secondary gonopore, PES left dorsolateral, DES2 right dorsolateral of secondary gonopore, DES1 removed from secondary gonopore and dorsad to DES2; base of PES and DES2 flattened and broad, base of DES1 narrow; all spicules originating adjacently proximate to base of secondary gonopore or DES2 and DES1 distad to PES; PES unbranched, narrow medially and then uniformly narrow to apex, apex curved downward, margins smooth; DES2 bifurcate, with branches curved downward; DES1 shorter than PES and DES2, with basal keel (fig. 77F).

Female: Almost identical to male; slight sexual dimorphism in smaller size, smaller eyes and shorter hemelytra, in particular cuneus and forewing membrane less elongate; pronotum more transverse and broad, not as elongate and narrow, and anterior margin also broad and not narrow as in male. GENITALIA: Vestibulum membranous (fig. 78A); ventral labiate plate lightly sclerotized, mesial surface sparsely spiniferous (fig. 78A), without any lateral lobes; dorsal labiate plate without mediolateral lobes (fig. 78A); sclerotized rings large, subovate, slightly constricted medially, anterior margin round, anterior surface lightly spiniferous (fig. 78A); posterior wall lightly sclerotized; medial region of posterior wall (fig. 78B) not visible; interramal sclerites (IRS) lightly sclerotized, deeply divided with V-shaped junction, and forming posterior margin of posterior wall, posterior margin membranous, with broad spiniferous lobes basally, just posterior to base of IRLs; IRS with one pair of lightly sclerotized interramal lobes (IRL), attached laterally to IRS with narrow base (fig. 78B).

ETYMOLOGY: Ngulla means “our” in the language of the Noongar people, the traditional custodians and original inhabitants of the southwest of Western Australia, from which the genus is known, combined with the typical mirid generic name Miris . The gender is feminine.

REMARKS: Ngullamiris is morphologically more removed from the other four callitroidinhabiting Orthotylini genera. While the other four genera have a relatively large pygophore and aedeagus in relation to body size, Ngullamiris has a small pygophore and aedeagus and in particular a cup-shaped convex ventral margin, within which the parameres and aedeagus are contained (fig. 76). The other four callitroid-inhabiting Orthotylini genera have a large round genital opening, with a more or less straight ventral margin. The pygophore and aedeagus and most often the parameres too, extend beyond the margins of the genital opening in the other four genera (e.g., figs. 17A–C, 25C–D, 44A–B, 72A–B). Also in contrast to the other four genera, spinelike setae in Ngullamiris extend across the entire ventral pygophore surface (fig. 76B). Where present in other callitroid-inhabiting Orthotylini genera, these ventral spinelike setae are situated proximal to genital opening and do not extend to the anterior of the pygophore (e.g., figs. 25A, 44A, 72A). The left paramere of Ngullamiris is a more modified L-shape in comparison to the other genera, with its linear shape, large and strongly recurved subapical hook and reduced apophysis (fig. 77B, C). In the aedeagus, the endosomal spicule orientation for Ngullamiris is similar to Avititerra and Naranjakotta , with PES left dorsolateral to the secondary gonopore (see fig. 11). See also remarks below for Ngullamiris whadjuk .