The Cylapinae of French Guiana: an illustrated catalogue with the description of a new species (Insecta, Heteroptera, Miridae).

An illustrated catalogue of Cylapinae (Insecta, Heteroptera, Miridae) from French Guiana is provided. Valdasus cerdai, n. sp. is described as new. Cylapus antennatus (Carvalho & Fontes, 1968), C. citus Bergroth, 1922, C. ruficeps Bergroth, 1922, C. tucuriensis (Carvalho, 1989) and Peltidocylapus caudatus Wolski, 2021 are recorded from French Guiana for the first time. The validity of Valdasoides Carvalho, 1989 is discussed.

Review of the genus Valdasus Stål, 1860 (Heteroptera, Miridae, Cylapinae), with descriptions of four new species from Brazil, Ecuador and French Guiana.

The genus Valdasus Stål, 1860 is reviewed. Four species are described as new: Valdasus favrei n. sp., V. ferrerai n. sp., V. flavinotum n. sp., and V. henryi n. sp. V. erebeus Distant, 1883 and V. stygius Distant, 1883 are transferred again to Valdasus (original combination reestablished) from Peltidocylapus Poppius and they are redescribed along with the type species V. schoenherri Stål, 1860. Presence of V. bolivianus in Argentina is challenged after new analysis of female specimen mentioned in literature.

Review of the mirine plant bug genus Eurystylus Stål from Japan and Taiwan (Hemiptera: Heteroptera: Miridae: Mirinae), with descriptions of two new species, a new synonymy and a new combination.

Species of the Old World mirine plant bug genus Eurystylus Stål (the Head Bugs) in Japan and Taiwan are reviewed. Four species are currently recognized. Two new species are diagnosed and described: E. ryukyus n. sp. (from SW Japan and Taiwan) and E. jingfui n. sp. (Taiwan). Two known species, E. coelestialium (Kirkaldy) and E. sauteri Poppius, are diagnosed; new distributional records are added for the latter. Two keys are provided to aid the identifications of (1) Eurystylus and four related genera and (2) the species of Eurystylus known from Japan and Taiwan. The phylogenetic relationships of Eurystylus with the assumed related genera are discussed. Eurystylomorpha Poppius is synonymized with Eurystylopsis Poppius, and a new combination, Eurystylopsis crassicornis (Poppius), is accordingly proposed.

Cylapofulvidius Chérot & Gorczyca, 2000-a synonym of Fulvidius Poppius, 1909 (Hemiptera: Heteroptera: Miridae: Cylapinae).

The genus Cylapofulvidius Chérot & Gorczyca, 2000 is proposed as a junior subjective synonym of Fulvidius Poppius, 1909 syn. nov. and all members of Cylapofulvidius are transferred to the genus Fulvidius. The genus Fulvidius and its type species F. punctatus Poppius, 1909 are redescribed, and diagnoses of each Fulvidius species, habitus picture of the adult and illustration of male genital structures of most of the treated species are provided. Scanning electron micrographs of selected structures of Fulvidius webbi (Chérot & Gorczyca, 2000) are presented for the first time. A key to species of Fulvidius is provided.

An annotated catalog of the Iranian Miridae (Hemiptera: Heteroptera: Cimicomorpha).

An updated list of Iranian Miridae Hahn, 1833 is provided and discussed. Seven subfamilies (Bryocorinae, Cylapinae, Deraeocorinae, Isometopinae, Mirinae, Orthotylinae, and Phylinae), 140 genera, and 498 species are confirmed from Iran. Phytocoris (Stictophytocoris) meridionalis (Herrich-Schaeffer, 1835), is newly recorded from Iran. The possible presence in the country of 28 additional species is briefly analyzed. 

New record and redescription of the monotypic genus Comefulvius Carvalho & Carpintero, 1985 (Hemiptera: Heteroptera: Miridae: Cylapinae) .

Comefulvius chingonus Carvalho & Carpintero, the only representative of the genus Comefulvius, previously known only from Córdoba Province, Argentina, is recorded from Ecuador. Redescription of Comefulvius is given along with color photographs of the adult and illustrations of the male genitalia.

A new genus and species of Mirini from Argentina (Hemiptera: Heteroptera: Miridae).

Mendozamiris chiquillanes is described as a new genus and species from Mendoza, Malargüe Department, Argentina.