Edessa (Edessa) decolorata, Mendonça & Silva & Fernandes, 2023

Mendonça, Maria Thayane Da Silva, Silva, Valéria Juliete Da & Fernandes, José Antônio Marin, 2023, Description of fifty-one new species and new taxonomic arrangement for the E. sexdens group of the subgenus Edessa (Heteroptera, Pentatomidae, Edessinae, Edessa), Zootaxa 5372 (1), pp. 1-128 : 27-29

Edessa (Edessa) decolorata sp. n.

( Figs. 10 , 57 A–B , 73 )

Etymology. The name refers to the absence of dark spots on the connexival segments (L. decolor, discolored, faded).

Material examined. Holotype male. BRAZIL, Rondônia: Fazenda Rancho Grande 62 km SW, 8–20-XI-1994, J. E. Eger & L. B. & C. W. O’Brien ( USNM).

Paratypes. BOLIVIA, Santa Cruz: 1♀, Buena Vista, Hotel Flora e Fauna 5km 440m, 10–22-X-2004, J. E. Eger (17º29.925’ S 63º39.128’ W) ( JEE) ; Cochabamba: 1♀, Chaparé 400m, 30-IX-1951, Dirings ( MZUSP) . PARAGUAY, San Pedro del Ycuamandiyú: 1♁, Liberacion , 3-I-1994, B. Garcete ( UNAN) ; Guairá and Caazapá : 1♁, Cordilheira do Ybytyruzú , I-1994, G. Arriagada ( JEE) . ARGENTINA, Missiones: 1♀, San Ignacio , IV-1956, F. H. Walz ( RMNH) ; 1♁, Loreto , XII-1956, F. H. Walz ( RMNH) .

Measurements (n= 7). Total length: 19.5–22.4; head length: 1.5–2.1; head width: 3.5–3.6; pronotum length: 4.3–5.0; pronotum width: 14.0–16.0; scutellum length: 8.3–10.1; scutellum width: 6.5–8.0; abdominal width: 11.2– 13.0; length antennomeres: I: 1.0; II: 2.0; III: 1.8–3.0; IV: 4.0–4.2; V: 4.3–5.7.

Diagnosis. Large (19.5–22.4 mm). Dorsal body surface olive green ( Fig. 57 A ). Ventral surface dark yellow to greenish yellow with transversal brown lines on thorax and abdomen ( Fig. 57 B ). Antennae reddish brown ( Fig. 57 A ). Pronotum coarse, densely punctured, with brown punctures ( Fig. 57 A ). Humeral angles short (1.25 times wider than long); apex with black spot restricted to the angles in dorsal view and restricted to the margin of the angles in ventral view; curved backwards ( Fig. 57 A–B ). Scutellum with brown punctures; apex not reaching the end of coria ( Fig. 57 A ). Coria with all veins concolorous with the surrounding surface ( Fig. 57 A ). Connexival segments with black punctures, without spot and flat ( Fig. 57 A ). Posterolateral angles of connexivum with apices concolorous with the surrounding surface ( Fig. 57 A ). Ventral surface, thorax with brown lines; dark line of the propleura covering 1/3 of the width of the sclerite ( Fig. 57 B ). Evaporatorium concolorous with the surrounding surface; peritreme straight ( Fig. 57 B ). Metasternal process ( Fig. 10 G ) with arms of anterior bifurcation straight and laterally well expanded, margin acuminated at apex; anterior bifurcation somewhat excavated receiving fourth rostral segment. Legs brown ( Fig. 57 B ). Abdomen with spine of segment III acuminated ( Fig. 57 B ). Intersegmental areas covered by narrow brown lines with well-defined margins, not reaching lateral margin ( Fig. 57 B ). Pseudosutures concolorous with the surrounding surface ( Fig. 57 B , dark lines are a deterioration of the exoskeleton). Median longitudinal brown band incomplete ( Fig. 57 B ). Trichobothria both parallel to the spiracle. Posterolateral angles of segment VII not reaching the level of apices of laterotergites IX ( Fig. 10 F ). Male genitalia, posterolateral angles of the pygophore developed, projected laterally ( Fig. 10 A, C ). Superior processes of the genital cup tapering, thick, flattened and coarse in posterior view, continuing ventrally in a crenulate carina ( Fig. 10 B, E , crenulate carina barely visible). Parameres ( Fig. 10 D–E ) with black margins; anterior lobe inconspicuous and rounded; dorsal lobe rounded and laterally curved; posterior lobe subrectangular and curved. Proctiger, posterior face triangular ( Fig. 10 D–E ). Ventral rim in “V”; with lateral subdistal tuft of setae ( Fig. 10 C ); with expansions undeveloped, but brown ( Fig. 10 C ). Female genitalia, valvifers VIII with dark punctures, medial brown spot; sutural margins contiguous brown and not divergent; posterior margin brown and levelly arched, medially with a very shallow excavation. Valvifers IX not carinated. Laterotergites VIII with black band on outer lateral margins. Laterotergites IX with apices rounded exceeding the mediotergite VIII ( Fig. 10 F ).

Comments. Edessa (E.) decolorata sp. n. resembles E. (E.) immaculata sp. n. and E. (E.) nigriclava Walker, 1868 (see Mendonça et al., 2023, Figs. 15 B–C , 28 A–B ) by the connexivum without spots and pygophore with the superior processes of the genital cup with crenulate carina. Edessa (E.) decolorata sp. n. differs from the other two by the dark line of the propleura covering 1/3 of the width of the sclerite (the dark line of the propleura covering 2/3 of the width of the sclerite in the other two); body ventrally with pseudosutures concolorous with the surrounding surface (pseudosutures black or brown in the other two) and ventral rim of the pygophore with lateral subdistal tuft of setae (without this tuft of setae in the other two).

Distribution ( Fig. 73 ). BRAZIL: Rondônia; BOLIVIA: Santa Cruz, Cochabamba; PARAGUAY: San Pedro del Ycuamandiyú, Guairá and Caazapá; ARGENTINA: Missiones.

Figures

FIGURE 10. A–G. Edessa (E.) decolorata sp. n.: A–E, pygophore in dorsal, dorsolateral, ventral, posterior and posterolateral views, respectively; F, genital plates; G, metasternal process. Scale= 1 mm.

FIGURE 15.A–G. Edessa (E.) flavoantennata sp. n.:A–E,pygophore indorsal, dorsolateral, ventral,posterior andposterolateral views, respectively; F, genital plates; G, metasternal process. Scale= 1 mm.

FIGURE 28. A–G. Edessa (E.) infuscata sp. n.: A–E, pygophore in dorsal, dorsolateral, ventral, posterior and posterolateral views, respectively; F, genital plates; G, metasternal process. Scale= 1 mm.

FIGURE 57. A–F. Dorsal and ventral surface:A–B, Edessa (E.) decolorata sp. n.; C–D, Edessa (E.) echyra sp. n.; E–F, Edessa (E.) fabricii sp. n. Scale= 5 mm.

FIGURE 73. Distribution map of the species.