Taxonomic revision of Guapinannus Wygodzinsky, 1951 (Hemiptera: Schizopteridae), with description of 19 new species Author Frankenberg, Sarah 0000-0002-7673-492X Department of Entomology, University of California, Riverside, 900 University Avenue, 92521 Riverside, CA, USA sara. frankenberg @ ucr. edu; http: // orcid. org / 0000 - 0002 - 7673 - 492 X sara.frankenberg@ucr.edu Author Knyshov, Alexander 0000-0002-2141-9447 Department of Entomology, University of California, Riverside, 900 University Avenue, 92521 Riverside, CA, USA sara. frankenberg @ ucr. edu; http: // orcid. org / 0000 - 0002 - 7673 - 492 X & https: // orcid. org / 0000 - 0002 - 2141 - 9447 Author Hoey-Chamberlain, Rochelle 0000-0002-1950-6613 Department of Entomology, University of California, Riverside, 900 University Avenue, 92521 Riverside, CA, USA sara. frankenberg @ ucr. edu; http: // orcid. org / 0000 - 0002 - 7673 - 492 X & https: // orcid. org / 0000 - 0002 - 1950 - 6613 Author Weirauch, Christiane Department of Entomology, University of California, Riverside, 900 University Avenue, 92521 Riverside, CA, USA sara. frankenberg @ ucr. edu; http: // orcid. org / 0000 - 0002 - 7673 - 492 X text Zootaxa 2021 2021-04-14 4958 1 261 286 journal article 7233 10.11646/zootaxa.4958.1.14 877bdc9a-24e9-4b3d-a4f6-3de97398630d 1175-5326 4691718 24D79FED-A8E2-45FA-B37D-89605F56D797 Guapinannus graziae , sp. n. ( Figs 3 , 7 , 9 ) Holotype . Male. NICARAGUA : Region Autonoma del Atlantico Sur : 13km WNW Rama , 12.19472°N 84.33667°W , 190 m , 18 Apr 2011 , J. T . Longino, 1♂ ( UCR _ ENT 00102045 ) ( FMNH ). Paratypes : NICARAGUA : Region Autonoma del Atlantico Sur : 13km WNW Rama, 12.19472°N 84.33667°W , 190 m , 18 Apr 2011 , J. T . Longino, 3♀ ( UCR _ENT 00102046-UCR_ENT 00102048), 1♂ ( UCR _ENT 00101103) associated with Carduus occidentalis Nutt. (Asteraceae) , 1♂ ( UCR _ENT 00102049) ( FMNH ). Rivas : Matagalpa : RN Cerro Musún, 12.95944°N 85.225°W , 800m , 01 May 2011 , collector unknown, 1♂ ( UCR _ENT 00101361) ( FMNH ). Etymology: Named after our dear mentor, colleague, and friend, the grande dame of South American heteropteran systematics, Jocelia Grazia. Diagnosis: Recognized by the small body length ( 1.16 mm ), very broad C+Sc margin (white arrow) ( Fig. 3 ), slightly s-shaped vesica, and short, curved anophoric process (black arrow) ( Fig. 7 ). Description: Male: Total body length 1.16 mm ; length from posterior margin of pronotum to posterior wing margin 0.89 mm ; greatest width across pronotum 0.56 mm ; greatest width across forewings 0.69 mm . General coloration: mix of pale and darker brown or reddish brown. 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 medium-sized, evenly distributed; scutellum in dorsal view abruptly narrowed to tip, tip pointed. Forewing: With outline broad anteriorly; membrane contributing about one third of forewing length, posterior distal margin squarish, veintracing areoles on proximal part of wing absent; C+Sc very broad, wider at widest part of wing; distal process of R pronounced; An1 wing organ on corium strongly inflated, elongate, with median notch, without notch articulating with claval process; rc1 about 3 times as long as wide, slightly wider anteriorly; rc about 4 times as long as wide; tc about 3 times as long as wide; part of An1 and Cu forming posterodistal margin of tc of similar width as other veins; distal margin of rc1, rc, and tc cells s-shaped; rc2–3 trapezoidal; 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 apex slightly s-shaped; anophoric ridge with process, process short, with single lobe curved, tip pointed; right paramere curved, tapering, basal process narrow; left paramere straight, tapering, basal process narrow. Female: As in male and generic description. Collecting method and habitat: Collected using Winkler extraction in second growth forest and tropical wet forest.