Guapinannus sinuosus Frankenberg & Knyshov & Hoey-Chamberlain & Weirauch 2021, sp. n.
Creators: name: Frankenberg, Sarah
name: Knyshov, Alexander
name: Hoey-Chamberlain, Rochelle
name: Weirauch, Christiane
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Dipsocoridae
Guapinannus
Guapinannus sinuosus

description: Guapinannus sinuosus, sp. n.
(Figs 3, 7, 9)
Holotype. Male. MEXICO: Chiapas: Palenque, 15.63333°N 92.65°W, 1640m, 02 Jul 1983 – 30 Jul 1983, S. B. Peck, J. Kukalova-Peck, R. S. Anderson, 1♂ (UCR _ ENT 00102050) (FMNH).
Paratypes: MEXICO: Chiapas: El Bosque (6.6 mi SW), 17.01667°N 92.78333°W, 1463 m, 29 Aug 1973, A. F. Newton, 7♀ (UCR _ ENT 00101241, UCR_ENT 00102051-UCR_ENT 00102053) (FMNH). Playón de la Gloria, 16.16028°N 90.90139°W, 160 m, 26 Jun 2008, collector unknown, 1♂ (UCR _ ENT 00120069) (MTEC).
Etymology: Named for the s-shaped vesica after “sinuosus” Latin for bending.
Diagnosis: Recognized by the mid-sized body length (1.49 mm), C+Sc margin broad anteriorly and more slender posteriorly, distinctly double s-shaped margin of rc1, rc, tc cells (black arrow) (Fig. 3), and relatively tick and s-shaped vesica (Fig. 7).
Description: Male: Total body length 1.49 mm; length from posterior margin of pronotum to posterior wing margin 0.9 mm; greatest width across pronotum 0.54 mm. General coloration: uniformly pale. Vestiture: Dorsum with sparse setae, setae short; setae on posterior margin of forewing long. Structure: Head: Eye almost half as high as head; muscle scars large. Thorax: Anterior pronotal margin concave, posterior margin slightly concave; pits on pronotum small, evenly distributed; scutellum in dorsal view gradually narrowed to tip, tip pointed. Forewing: With outline elongate oval; membrane contributing about one third of forewing length, posterior distal margin rounded, vein-tracing areoles on proximal part of wing absent; C+Sc uniformly broad; distal process of R weakly developed; An1 wing organ on corium strongly inflated, without notch articulating with claval process, rounded, without median notch; rc1 about 3 times as long as wide, slightly wider anteriorly; rc about 5 times as long as wide; tc about 3 times as long as wide; distal margin of rc1, rc, and tc cells double s-shaped; rc2–3 almost triangular; cub almost reaching wing margin; dc1 with basal portion relatively wide and short. Legs: Claws long. Genitalia (Fig. 7): Pygophore without lobe on right side; vesica with between half and one loop, not reaching right pygophore margin, thick at midpoint, tapering to acute tip, close to tip slightly s-shaped; anophoric ridge with process, process short, with single lobe curved, tip pointed; right paramere curved, tapering, basal process broad; left paramere straight, tapering, basal process narrow.
Female: As in male and generic description.
Collecting method and habitat: Collected using Berlese extraction, flight intercept trap, and sifting leaf litter in closed forest, cloud forest with pines, mature wet forest, and rainforest.
description: Published as part of Frankenberg, Sarah, Knyshov, Alexander, Hoey-Chamberlain, Rochelle & Weirauch, Christiane, 2021, Taxonomic revision of Guapinannus Wygodzinsky, 1951 (Hemiptera: Schizopteridae), with description of 19 new species, pp. 261-286 in Zootaxa 4958 (1) on pages 277-278, DOI: 10.11646/zootaxa.4958.1.14, http://zenodo.org/record/4691718