Review and phylogeny of Cyrtomenus Amyot & Serville (Hemiptera: Cydnidae: Cydninae) based on morphological characters Author Avendaño, José Mauricio Laboratorio de Entomologia Sistemática. Departamento de Zoologia, Instituto de Biociências, Universidade Federal do Rio Grande do Sul (UFRGS), Brazil Author Correia, Maíra Andrade PPG Ecologia e Evolução, Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo (UNIFESP), Brazil Author Grazia, Jocelia Laboratorio de Entomologia Sistemática. Departamento de Zoologia, Instituto de Biociências, Universidade Federal do Rio Grande do Sul (UFRGS), Brazil Author Schwertner, Cristiano Feldens Departamento de Ecologia e Biologia Evolutiva, Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo (UNIFESP), Brazil & PPG Ecologia e Evolução, Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo (UNIFESP), Brazil & Museu de Zoologia (MZUSP), Universidade de São Paulo, Brazil text Zootaxa 2024 2024-05-21 5453 3 301 340 http://dx.doi.org/10.11646/zootaxa.5453.3.1 journal article 296804 10.11646/zootaxa.5453.3.1 035c358a-0715-41a2-a6c9-27ebad4ea273 1175-5326 11234163 8B91667E-638D-4F5C-8A83-A806474228DF Cyrtomenus marginalis Signoret, 1881 ( Fig. 18 ) Crytomenus marginalis Signoret, 1881: 201 ; Lethierry & Severin, 1893: 62. Cyrtomenus (Syllobus) marginalis ; Froeschner, 1960: 521 . Material examined: Photos from the holotype provided by Harald Bruckner. Diagnosis: Dorsal surface of the mandibular plates, punctate; mandibular plates of the same length than clypeus; second antennal segment as long as third; 25–30 lateral submarginal setigerous punctures of the pronotum; Transverse impression marked by a band of punctures; Posterior lobe of the pronotum and disc of the scutellum densely punctate; 21–25 setigerous punctures on the costa. Redescription. Total length: 7.07 mm Head flattened dorsally, anterior outline broadly semicircular, surface shining, mandibular plates with prominent radiating rugae and numerous close-set, intermixed moderate and fine punctures; clypeus shorter than mandibular plates ( Fig. 18B ); labium broken, only first segment present. Thorax: Pronotum surface shining almost totally covered by crowded moderate and minute punctures, disc impunctate; lateral margin with submarginal row of 25 setigerous punctures; transverse impression weak. Scutellum punctured uniformly. Hemelytron surface shining, clavus with two incomplete rows of punctures; mesocorium and exocorium with several moderate punctures sparser than in scutellum; costa with 21 to 23 setigerous punctures ( Fig. 18A ). Mesopleural evaporatorium with pseudoperitreme. Metatibia compressed ( Fig. 18D ). Abdomen: Sternites III to VI with irregular, postmedian row of setigerous punctures across segments ( Fig. 18D ). Type data: The holotype specimen is a female deposited in NHM Wien, labeled: “ Brasil ”, coll. Signoret. Distribution: Brazil . Remarks: The species is known only from the type specimen.