Edessa ovina Dallas 1851
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 ovina

description: Edessa ovina Dallas, 1851
(Figs 1–9, 32, 33, 40)
Edessa ovina Dallas, 1851: 324 (description). Holotype. Male, British Guiana [Guyana] 44/85. (BMNH). Here designated. Edessa ovina: Walker, 1868: 425 (catalog); Stål, 1872: 60 (catalog); Lethierry & Severin, 1893: 192 (catalog); Kirkaldy, 1909:
161 (catalog).
Material examined (n: 17): TRINIDAD AND TOBAGO: Saint Augustine: 1 ♂ 2 ♀, BWI. 4.III.1943; on Bignomia unguis-cati L. [= Dolichandra unguis-cati (L.) L.G. Lohman], I. E. Kirby col. I. C. T. A. 10945; 10939; 10940 [10.647269 Lat.; -61.39952 Long.] (USNM). COLOMBIA: 1 ♂, [4.706155 Lat.; -73.619751 Long.] (BMNH). BRAZIL. Rondônia: 1 ♂, Ouro Preto d’Oeste. VIII.80. A. C. Domingos col. 1132 [-10.607767 Lat.; -62.310171 Long.] (MNRJ); 2 ♂, 62 km. SW Ariquemes, nr Fzda. [fazenda] Rancho Grande. 5–17.X.1993. J. E. Eger & C. W. O’Brien cols. [-9.907987 Lat.; -63.033255 Long.] (JEE). Maranhão: 2 ♂ 1 ♀, Bom Jardim. REBIO– Res. Biol. Gurupi. Armadilha luminosa. 01–06.XI.2010, M. M. Abreu, J. A. Silva, G. A. Reis & E. A. S. Barbosa cols. [-3.54265 Lat.; -45.609134 Long.] (UEMA). Mato Grosso: 1 ♂ 1 ♀, Diamantino, Fazenda S. João. X.1979. D. Roppa & A. Domingos cols. 1136 [-14.403813 Lat.; -56.437461 Long.] (MNRJ). Mato Grosso do Sul: 1 ♂, Bodoquena. XI.1941. Com. IOC. 03764 [-20.608066 Lat.; -56.65315 Long.] (MNRJ). PARAGUAY. Asunción: 1 ♂, E. Le Moult. Pt Sajonia col. 22.X.1936 [-25.265869 Lat.; -57.576662 Long.] (RMNH). Caazapá: 1 ♀, Parque Nac. Caaguazu. 1–8.XII.1990. G. Arrigada col. [-25.3112067 Lat.; -57.607791 Long.] (JEE). ARGENTINA. Jujuy: 1 ♀, Ledesma. 9.II.1950. A. Willink, F. Monrós cols. [-23.803249 Lat.; -64.762271 Long.] (RMNH). No location information: 1 ♀, Coll. Guerin Méneville, 1871 (MNHN).
Diagnosis: Dorsal surface green. Humeral angles with apices rounded, tumid and black (Figs 32–33). Scutellum short, apex not reaching the level of apices of corium. Ventral surface dark yellow; thorax irregularly punctate; abdomen shagreen. Peritreme long. Superior process of the genital cup claw-like (Fig. 5). Head of the paramere falcate (Fig. 5).
Description. Head: antennae yellow (Figs 32–33); antennomeres II+III shorter than IV.
Thorax: Pronotum with punctures sparsely distributed (Fig. 32). Evaporatorium dark brown (Fig. 33). Peritreme reaching two-thirds of the distance from ostiole to the lateral margin of metapleuron (Fig. 33). Metasternal process flat in lateral view (Fig. 3), bifurcation receiving fourth rostral segment (Figs 2–3). Legs brown (Fig. 33).
Abdomen: Connexival segments uniformly green (Fig. 32). Lateral margin ventrally lighter than the rest of the segment (Fig. 33).
Male genitalia: Pygophore subtrapezoidal (Fig. 4). Posterolateral angles setulose, strongly developed (Figs 4, 6). Base of the superior process of the genital cup with a yellow spot. Paramere dorsally sulcated, both lobes tapering. Ventral rim with expansions tumid and projected, but not reaching apices of posterolateral angles in ventral view (Fig. 6). Ventral surface of the pygophore with a central swelling area slightly developed (Fig. 6). Phallus. Vesica as broad as distal part of phallotheca (Fig. 7).
Female genitalia: Gonocoxites 8 shagreen with a straight distal margin; inner margins contiguous (Fig. 8). Laterotergites 8 and 9 without dark spots. Pars intermedialis tumid anteriorly. Capsula seminalis with three thick projections about the same length (Fig. 9).
Measurements: Total length: 15.6–17.6; head length: 1.5–2.1; head width: 3.0–3.2; pronotum length: 3.3–3.9; pronotum width: 10.4–12.6; humeral angles length: 1.0–1.9; humeral angles width: 0.6–1.3; abdominal width: 9.1– 10.3; length of antennomeres: I: 0.7–1.0; II: 1.2–1.5; III: 1.5–2.1; IV: 3.0–4.3; V: 3.5.
Comments: Dallas (1851) described Edessa ovina based on a male from British Guiana (Guyana). Dallas doesn’t mention another specimen in his description besides the male. Pieter van Doesburg mentioned only the specimen still labeled as holotype in BMNH. The same single specimen in BMNH collection, considered here the holotype, was examined by Fernandes too. Stål (1872) listed E. ovina, but did not include it in any proposed group of species. Lethierry & Severin (1893) listed Guyana as the type locality of E. ovina. Here, the female of Edessa ovina is described for the first time. The records from Trinidad and Tobago, Colombia, Brazil, Paraguay and Argentina are new records for this species.
Despite the obvious color of the humeral angle (black in Edessa ovina and yellow in E. impura), E. ovina and E. impura are very similar. A few characteristics can separate both species like paramere falcate distally in E. ovina and hatchet-like in E. impura. Posterolateral angles are more projected posteriorly in E. ovina than in E. impura. Laterotergites 8 and 9 are more developed in E. ovina than in E. impura.
Distribution (Fig. 40): TRINIDAD AND TOBAGO: Saint Augustine (new record); COLOMBIA (new record); GUYANA (Dallas 1851); BRAZIL: Rondônia, Maranhão, Mato Grosso, Mato Grosso do Sul (new records); PARAGUAY: Asunción, Caazapá (new records); ARGENTINA: Jujuy (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 631-633, DOI: 10.11646/zootaxa.4958.1.37, http://zenodo.org/record/4692651