Schizoptera (Odontorhagus) McAtee and Malloch, 1925,

Leon, Stephanie & Weirauch, Christiane, 2016, Scratching the surface? Taxonomic revision of the subgenus Schizoptera (Odontorhagus) reveals vast undocumented biodiversity in the largest litter bug genus Schizoptera Fieber (Hemiptera: Dipsocoromorpha), Zootaxa 4184 (2), pp. 255-284: 257-259

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Schizoptera (Odontorhagus) McAtee and Malloch, 1925


Schizoptera (Odontorhagus) McAtee and Malloch, 1925 

( Figs 1–7View FIGURE 1. A, BView FIGURE 2View FIGURE 3View FIGURE 4View FIGURE 5 A – LView FIGURE 6 M – W)

Schizoptera (Odontorhagus) McAtee and Malloch, 1925: 67  , 15 (orig. descr.).

Type species: Schizoptera (Odontorhagus) bipartita McAtee and Malloch, 1925  , by original designation Diagnosis. Distinguished from other Schizopteridae  by the relatively large size, the spine-shape of the metepisternum, the glabrous ventral margin of the metepisternum, the trapezoidal shape of the discal cell, the 90º rotation of the pygophore to the right of the dorsal body plane, and the presence of two asymmetrical conjunctival appendages. Distinguished from all other Schizoptera  species by the blunt tooth on the posterior margin of the propleuron ( Fig. 1AView FIGURE 1. A, B), the narrow, glabrous ventral margin of the metepisternum ( Fig. 1BView FIGURE 1. A, B), and the presence of a single process of the subgenital plate (except in S. (Odontorhagus) enigmatica  , n. sp.).

Re-description. Male: Body relatively large, length ranging from 1.19–1.59; body shape ovoid, broadly oval or amygdaliform; habitus macropterous. COLORATION: General color light to dark brown with some lighter markings; head and thorax brown; pronotum and scutellum uniformly brown; legs uniformly yellow (except in S. (Odontorhagus) ansata  , n. sp. and S. (Odontorhagus) aspera  , n. sp.); forewing anteriorly light to dark brown, posteriorly cream colored, with or without a fuscous patch; Sc + C either concolorous with or distinctly lighter than remainder of hemelytron; pigmentation of corium slightly extending into wing membrane; abdomen brown. SURFACE and VESTITURE: Head and thorax with dense microtrichia; head, pronotum and wing veins covered with short, light brown setae; clypeus and labium without microtrichia and with long setae; numerous circular muscle scars on head; abdomen densely covered with elongate, light brown setae (e.g., Fig. 2View FIGURE 2: S. (Odontorhagus) dentata  , n. sp.). STRUCTURE: HEAD: flat, rounded or slightly concave in ventral view; width of eye ranging from 1/3 as wide or 1 1/2 times width of synthlipsis; ocelli present, roughly equal in size to one compound eye ommatidium, and positioned close to margin of compound eye; labium 3-segmented and tapering. THORAX: pronotal collar present and pronounced, about 1/7 length of pronotum; pronotum trapezoidal and smooth, with a medial notch on the posterior margin; propleuron with a distinct, blunt tooth on posterior margin ( Fig. 1AView FIGURE 1. A, B); scutellum triangular; lateral margins of scutellum smooth; tip of scutellum small and round; hemelytron distinctly punctate; Sc + C explanate; posterior costal cell (R-M-M1) squared; margins of wing veins outlined with small areoles; apex of wing membranous with distinct cell-like sculpture; metepisternum sculpted into a spine; ventral margin of metepisternum differentiated into a narrow, glabrous shining groove ( Fig. 1BView FIGURE 1. A, B); metasternal spine robust, elongate and tapering to a point; hind coxa with well-developed adhesive pad; tarsal formula 3-3-3; pretarsus with setiform parempodia; arolia present on fore- and meso-tarsi. ABDOMEN: with five visible sternites corresponding to segments II-VII; sternite VII weakly asymmetrical with a rounded, or almost rounded, apex (e.g., Figs 5A, C, DView FIGURE 5 A – L) or distinctly asymmetrical, with longitudinal margin fused with base of lateral process forming a distinct, angular incision (e.g., Figs 5B, 5KView FIGURE 5 A – L, 6MView FIGURE 6 M – W), or with large, irregular incisions ( Figs 5JView FIGURE 5 A – L, 6NView FIGURE 6 M – W); subgenital plate with a single left lateral process (except in S. (Odontorhagus) enigmatica  , n. sp.); tergites of pregenital abdomen membranous except tergite VII (tVII in subsequent descriptions) and tergite VIII (tVIII in subsequent descriptions); tVII rectangular or weakly trapezoidal; tVIII weakly rectangular or trapezoidal; length of tVIII about 1/4 to 3/4 length of tVII. GENITALIA: pygophore (py subsequently) rotated 90º to the right; right paramere (rp subsequently) sickle shaped, with a robust base and elongate stem or ladle-shaped with a rounded base and thin stem; left paramere (lp subsequently) smaller than right; vesica uniformly thin and forming more than one to 4 coils, or short and tapering with or without serrations at apex; anophore well sclerotized and with a prominent dorsal fold forming a slit-like aperture in most species, or forming a half-pipe sclerite in S. (Odontorhagus) ansata  , n. sp.

Female: slightly larger than male; general habitus as in male; eyes smaller than in males. GENITALIA: segment VII symmetrical; ovipositor vestigial.














Schizoptera (Odontorhagus) McAtee and Malloch, 1925

Leon, Stephanie & Weirauch, Christiane 2016

Schizoptera (Odontorhagus)

McAtee 1925: 67