Edessa fuscolimbata, Bitar & Mendonça & Fernandes, 2023

Bitar, Murilo Victor Silva, Mendonça, Maria Thayane Da Silva & Fernandes, José Antônio Marin, 2023, Description of seven new species of Edessa Fabricius, 1803 from Central America (Heteroptera, Pentatomidae, Edessinae), Zootaxa 5278 (3), pp. 578-600 : 586-588

publication ID	https://doi.org/ 10.11646/zootaxa.5278.3.9
publication LSID	lsid:zoobank.org:pub:8397A532-CFAB-4BCA-AF98-D76BE5079B04
DOI	https://doi.org/10.5281/zenodo.7906770
persistent identifier	https://treatment.plazi.org/id/AD5BCC59-AE28-FFC1-FF0D-FD5152E3FE7D
treatment provided by	Plazi
scientific name	Edessa fuscolimbata
status	sp. nov.

Treatment

Edessa fuscolimbata sp. n.

( Figs. 4 View FIGURE 4 ; 8 G, H View FIGURE 8 ; 10 A View FIGURE 10 )

Etymology. The name refers to the black band on the anterolateral margin of the pronotum (L. Fusco - black; L. limbus - border).

Material examined. Holotype male. COSTA RICA, Heredia: 1♁, Estación Biológica La Selva , 50–150 m, 10º26’N, 84º01W, 4–6/IV/2003, E. Riley, at lights, TAMU-ENTO X 0719945, TAMU Out. 2011 ( TAMU). GoogleMaps

Paratype. COSTA RICA, Guanacaste: 1♁, 18/V/1932, A. Alfaro, Washington 08/2014 ( USNM) .

Measurements (n= 2): antennomeres length: 1st: 0.54–0.61mm; 2nd: 1.42–1.44mm; 3rd: 1.27–1.31mm; 4th: 1.98–2.06mm; 5th: 2.08mm; head length: 1.25–1.32mm; head width: 2.23–2.26mm; pronotal length: 2.19–2.26mm; pronotal width: 6.37–6.73mm; scutellum length: 4.77–5.16mm; scutellum width: 3.70–3.93mm; abdominal width: 6.00– 6.18mm; total length: 11.11–11.71mm.

Diagnosis: body probably dorsally green except variegated brown corium ( Fig. 8 G View FIGURE 8 ). Antennae black, basal portion of 3rd, 4th and 5th antennomeres whitish ( Fig. 8 G View FIGURE 8 ). Anterolateral margin of pronotum black ( Fig. 8 G View FIGURE 8 ). Pronotum, Scutellum and corium with black punctures ( Fig. 8 G View FIGURE 8 ). Black minute longitudinal callosity adjacent to humeral angles ( Fig. 8 G View FIGURE 8 ). Scutellum with black distal spot ( Fig. 8 G View FIGURE 8 ). Corium with black longitudinal stripe on basal portion of lateral margin ( Fig. 8 G View FIGURE 8 ); also with diffuse whitish basal and subdistal spots ( Fig. 8 G View FIGURE 8 ). Last connexival segment with distal third black ( Fig. 8 G View FIGURE 8 ). Ventral surface: pale yellow with transversal, narrow, incomplete and faded brown stripes on abdomen ( Fig. 8 H View FIGURE 8 ); thorax uniformly and densely punctured, punctures dark ( Fig. 8 H View FIGURE 8 ). Anterior bifurcation of the metasternal process with arms very short, narrow, apices rounded ( Fig. 8 H View FIGURE 8 ). Male genitalia: pygophore trapezoidal ( Fig. 4 A, B View FIGURE 4 ). Superior process of the genital cup pedunculated, small, subrectangular ( Fig. 4 C, D View FIGURE 4 ). Parameres with anterior lobe elliptical ( Fig. 4 C, D View FIGURE 4 ); posterior lobe long, narrow and laterally curved ( Fig. 4 C, D View FIGURE 4 ). Proctiger laterally excavated ( Fig. 4 C, D View FIGURE 4 ); posterior face subtriangular with dorsal part broad and slightly swollen ( Fig. 4 C View FIGURE 4 ). Ventral rim with median notch broad and shallow ( Fig. 4 B View FIGURE 4 ); expansions developed ( Fig. 4 B View FIGURE 4 ).

Description: head: clypeus and jugae, slightly ridged. Bucculae subtriangular, almost completely harboring first labial segment. Thorax: dorsal surface: pronotum with punctures sparse, irregularly distributed ( Fig. 8 G View FIGURE 8 ). Anterior margin of pronotum with subtle row of punctures ( Fig. 8 G View FIGURE 8 ). Humeral angle with black spot at the apex ( Fig. 8 G View FIGURE 8 ); short, about as long as the width of an eye ( Fig. 8 G View FIGURE 8 ). Scutellum with punctures sparse on anterior half and dense on lateral margins and posterior half ( Fig. 8 G View FIGURE 8 ). Clavus with yellowish line adjacent to corium ( Fig. 8 G View FIGURE 8 ). Membrane translucent, slightly dark ( Fig. 8 G View FIGURE 8 ). Ventral surface: prothorax–mesothorax without dark stripes ( Fig. 8 H View FIGURE 8 ). Peritreme ruga-like, reaching 4/5 of the distance between ostiole of the scent gland and lateral margin of metapleuron ( Fig. 8 H View FIGURE 8 ). Metasternal process delicate, anterior arms slightly divergent, anterior bifurcation receiving only part of fourth rostral segment ( Fig. 8 H View FIGURE 8 ). Abdomen: dorsal surface: posterolateral angles of connexival segments with tiny distal black spot ( Fig. 8 G View FIGURE 8 ). Male genitalia: dorsal rim brown and convex medially ( Fig. 4 A View FIGURE 4 ). Posterolateral angles slightly developed, gently excavated on inner face ( Fig. 4 A View FIGURE 4 ); apex coarse ( Fig. 4 A View FIGURE 4 ). Ventral rim with expansions slightly tumid and laterally curved ( Fig. 4 B View FIGURE 4 ). Female genitalia: unknown.

Differential diagnosis: Edessa fuscolimbata sp. n. has distinctive black antennae ( Fig. 8 G View FIGURE 8 ), anterolateral margin of pronotum black ( Fig. 8 G View FIGURE 8 ), and apex of scutellum black ( Fig. 8 G View FIGURE 8 ), which are remarkable features among the species presented here. This species shares with E. fuscopunctata the black stripe on lateral margin of corium and black punctuation on dorsal surface ( Figs. 8 G View FIGURE 8 , 9 A View FIGURE 9 ). The black stripe on corium is characteristic of the genus Hypoxys , possibly both species are related to this genus, but are not part of it due to genital characteristics.

Distribution ( Fig. 10 A View FIGURE 10 ): COSTA RICA: Guanacaste, Heredia.

Observation: Both available specimens of E. fuscolimbata show strong evidence of generalized depigmentation, possibly caused by inadequate conservation, which makes specimens prone to partially or completely lose their original color, usually becoming brown. Because of this, color information is presented speculatively in the description. However, it is possible to state that their corium is naturally brown, since most of it seems unaffected.