Key to the Pycnoderes species of Espírito Santo 1 Head with vertex, median line of front, and apex of clypeus black, remainder..pale yellowish brown; pronotum with median area weakly grooved; embolium with a large pale subbasal spot about twice the length of the smaller apical spot.............................................................................................. P. quadrimaculatus - Head black; pronotum without median area weakly grooved; embolium with a. pale subbasal spot not twice the length of the apical spot............................................................................. P. cataguasensis

Published as part of Ferreira, Paulo Sérgio Fiuza, Martins, David Dos Santos, Ferreira, Luciano Santana Fiuza & Fornazier, Maurício José, 2024, Synopsis of Miridae (Hemiptera: Heteroptera) in Atlantic Forest Dominion, Espírito Santo State, Brazil: keys, diagnoses, new species, plant associations, and geographic distribution. Part I: Bryocorinae, Cylapinae and Deraeocorinae., pp. 201-254 in Zootaxa 5468 (2) on page 224, DOI: 10.11646/zootaxa.5468.2.1, http://zenodo.org/record/11615431