Edessa impura Bergroth 1891
Creators: name: Fernandes, Jose Antonio Marin
name: Silva, Valeria Juliete Da
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Pentatomidae
Edessa
Edessa impura

description: Edessa impura Bergroth, 1891
(Figs 10–15, 34–35, 40)
Edessa impura Bergroth, 1891: 232 (description). Holotype of Edessa impura. Male. Brazil, Minas Gerais. (MNHN—in Coll Fallou. Box 22).
Edessa impura: Lethierry & Severin, 1893: 191 (catalog); Kirkaldy, 1909: 159 (catalog); Campos et al., 2009: 168 (distribution); Bardella et al., 2014: 47 (CMA 3 /DAPI banding patterns).
Edessa argali Breddin, 1903: 139 (description). Lectotype of Edessa argali. Male. Brazil, São Paulo. Designated by Gaedike (1971: 80) (SDEI).
Edessa argali: Bergroth, 1908: 132; Kirkaldy, 1909: 154 (catalog); Gaedike, 1971: 80 (catalog). Syn. nov.
Material examined (n: 19): BRAZIL. Minas Gerais: 1 ♂, Poços de Caldas. Mº S. Domingos. 29.II.1968. J. Becker, O. Roppa & O. Leoncini cols. 372. [-21.786199 Lat.; -46.56205 Long.] (MNRJ). São Paulo: 1 ♂, Jundiay 1899, Schrostky. Nº 77. 72164 (MZUSP); 2 ♂ 1 ♀, Bras. Ráz Lgt. Mus. Pragense [-23.546213 Lat.; -46.629199 Long.] (NMPC); 1 ♀, São José do Rio Preto [-20.813136 Lat.; -49.375198 Long.] (FURG). Paraná: 2 ♂ 2 ♀, mi S. Guaraniaçu. 24.II.1980. D. B. Thomas col. [-25.119161 Lat.; -52.830678 Long.] (TH); 1 ♀, Irati. X. 61. Zajciv col. 1955 [-25.474812 Lat.; -50.662388 Long.] (FURG). Santa Catarina: 2 ♂ 2 ♀, Nova Teutônia. I.1974. 300– 500m. 27º 11’ B. 52º 23’ L. Fritz Plaumann col. [-27.161145 Lat.; -52.416727 Long.] (DAR); 1 ♂, Criciúma, Parque J. Milaneze. 24.V.2006. Bertolin, T. col. [-28.673287 Lat.; -49.374113 Long.] (FURG). Rio Grande do Sul: 1 ♀, Maquiné, Barra do Ouro. 02.II.2002. Depto. Zoologia, Trilha 1 [-29.609757 Lat.; -50.224151 Long.] (FURG). ARGENTINA. Misiones: 1 ♂, Loreto. I.1960. A. Martines leg [-27.31693 Lat.; -55.532815 Long.] (MSUZP); 1 ♂, Urroyo Yacutinga (A. Del Valle). 29.XI.1951. F. Monrós, A. Willink cols. [-25.597372 Lat.; -54.578626 Long.] (RMNH).
Diagnosis: Dorsal surface green. Humeral angles with apices rounded, tumid and yellow (Fig. 34). Scutellum short, apex not reaching the level of the apices of corium (Fig. 34). Ventral surface reddish yellow; thorax uniformly punctate; abdomen shagreen. Peritreme short (Fig. 35). Superior process of the genital cup claw-like (Figs 10–11). Head of the paramere with anterior lobe subrectangular, posterior lobe tapering (Fig. 11).
Description. Head: Antennomeres I–III yellow, remaining ones reddish brown. (Figs 34–35); antennomeres I+II subequal in length to III; IV subequal in length to V.
Thorax: Pronotum with punctures sparsely distributed (Fig. 34). Evaporatorium concolorous with surrounding surface (Fig. 35). Peritreme reaching half of the distance from the ostiole to the lateral margin of the metapleuron (Fig. 35). Metasternal process flat in lateral view, bifurcation receiving fourth rostral segment. Reddish brown legs (Figs 34–35).
Abdomen: Connexival segments uniformly green (Fig. 34). Lateral margin ventrally lighter than the rest of the segment (Fig. 35).
Male genitalia: Pygophore subrectangular (Fig. 10). Posterolateral angles setulose, somewhat developed (Figs 10, 12). Floor of the genital cup wrinkled with long and sparse setae. Ventral rim with expansions tumid and slightly projected, far from reaching apices of posterolateral angles in ventral view (Fig. 12). Ventral surface of the pygophore with central tumid area slightly projected posteriorly (Fig. 12). Phallus. Vesica clearly broader than distal part of phallotheca (Fig. 13).
Female genitalia: Gonocoxites 8 densely punctate with distal margin straight; inner margins contiguous (Fig. 14). Laterotergites 8 and 9 without dark spots. Capsula seminalis slightly tumid medially with three thick projections almost the same length (Fig. 15).
Measurements: Total length: 14.3–17.2; head length: 1.3–1.9; head width: 2.5–3.1; pronotum length: 2.8–3.9; pronotum width: 10.0–12.1; humeral angles length: 0.8–1.4; humeral angles width: 0.7–1.2; abdominal width: 8.6– 10.3; length of antennomeres: I: 0.6–1.0; II: 0.9–1.4; III: 1.4–2.8; IV: 2.6–3.3; V: 2.4–3.0.
Comments: Bergroth (1891) described Edessa impura from Minas Gerais, Brazil. The original description mentioned only one male, in which the species was described. Later, Dr. Pieter van Doesburg made notes about this male, referring to it as the holotype of the species. My personal (J.A.M., Fernandes) search in the Fallou collection located only one specimen of E. impura –the type specimen mentioned by Dr. van Doesburg (J.A.M. Fernandes, pers. Observ.), therefore we consider this specimen the holotype of the species.
We are considering Edessa argali Breddin, 1903, described from two males collected in São Paulo, Brazil, a junior synonym of E. impura based on morphological similarities of the genitalia and the color of the humeral angle. Edessa impura is the only species included in this work that has humeral angles with yellow apices pale see comments for E. ovina. The female is described here for the first time.
Distribution (Fig. 40): BRAZIL: Minas Gerais (Fallou), São Paulo (Breddin), Paraná, Santa Catarina, Rio Grande do Sul (new records); ARGENTINA: Misiones (new record).
description: Published as part of Fernandes, Jose Antonio Marin & Silva, Valeria Juliete Da, 2021, A new species group to Edessa, the E. ovina group, with description of a new species (Heteroptera: Pentatomidae: Edessinae) from Brazil, pp. 628-642 in Zootaxa 4958 (1) on pages 633-635, DOI: 10.11646/zootaxa.4958.1.37, http://zenodo.org/record/4692651