Diognetus giganteus Yasunaga &amp; Schwartz &amp; Chérot 2023, sp. nov.
Creators: name: Yasunaga, Tomohide
name: Schwartz, Michael D.
name: Chérot, Frédéric
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Miridae
Diognetus
Diognetus giganteus

description: <i>Diognetus giganteus</i> sp. nov. (Figs 7I, 27J− K) <b>Type material.</b> HOLOTYPE: &amp;female;, <b>MALAYSIA: PAHANG:</b> Cameron Highlands, 4.488, 101.367, at UV light, 28 Jul 1986, S. Gotoh (ZRC) (AMNH _ PBI 00380748). <b> Description. <i>Female</i> (holotype).</b> Body ovoid, largest among known congeners with total length 6.7 mm, maximum width 3.2 mm. COLORATION: Dorsum pale brown, partly tinged with red (Fig. 7I). Head reddish-brown. Antennae pale brown; segment I pale reddish-brown; apical 1/5 of segment II, whole segment III and segment IV (except for yellow extreme base of III) dark brown. Labium shiny pale reddish-brown (segments III− IV not observed as heavily glued). Pronotum irregularly speckled with dark maculae; mesoscutum and scutellum reddish-brown, with irregular symmetrical dark maculae and yellow apex; lateral margin of pronotum and dorsal half of propleuron shiny dark brown; mesepimeron and episternum infuscate; scent efferent system creamy yellow. Hemelytron pale reddish-brown, speckled with irregular dark maculae; cuneus pale brown, with sanguineous suffusion along inner margin; membrane pale grayish brown, semitransparent, with lighter veins. Coxae and legs reddish-brown; metafemur with two brown rings subapically (basal one wider); tarsi pale brown. Ventral surface of abdomen pale brown, with reddish or brownish lateral and posterior margins. SURFACE AND VESTITURE: As in generic diagnosis; dorsal vestiture relatively short; scutellum and hemelytron rather matte, weakly and sparsely punctate (Fig. 27K). STRUCTURE: Eye relatively large; vertex a little narrower than an eye in dorsal view. Antennal segment II slightly longer than pronotal width. Scutellum inflated, transversely rugose. Scent efferent system relatively large, with thick peritreme (Fig. 27J). FEMALE GENITALIA: Not examined, as a single available specimen is excessively glued. <i>Male.</i> Unknown. <i> <i>Measurements</i>.</i> See Table 1. <b>Differential diagnosis.</b> Easily recognized by its largest size among known congeners; ovoid and tumid body; and relatively inflated pronotal disk and scutellum. These diagnostic characters enable to be distinguished from any other known species of <i>Diognetus</i>. <b>Etymology.</b> Latin adjective <i>giganteus</i> (large, giant), referring to its largest size among the congeners. <b>Biology.</b> Unknown. <b>Distribution.</b> Malaysia (Pahang).
description: Published as part of <i>Yasunaga, Tomohide, Schwartz, Michael D. &amp; Chérot, Frédéric, 2023, Revision of the plant bug genus Diognetus, with descriptions of thirteen new species from the Oriental and Eastern Palearctic Regions (Hemiptera: Heteroptera: Miridae), pp. 1-55 in Acta Entomologica Musei Nationalis Pragae (Acta. Ent. Mus. Natl. Pragae) (Acta. Ent. Mus. Natl. Pragae) 63 (1)</i> on page 18, DOI: 10.37520/aemnp.2023.001, http://zenodo.org/record/7887421