Edessa (Edessa) tenuivittata sp. n.

(Figs. 47, 69 C–D, 72)

Etymology. The name refers to the faded intersegmental bands in the ventral side of the abdomen (L. tenuis, thin; L. vitta, ribbon, band).

Material examined. Holotype male. PERU, Ucayali: Pucallpa, Rio Ucayali 200m, Dirings (MZUSP). Paratype. BOLIVIA, Cochabamba: 1♁, Chapare Gebiet Oberer, Rio Chipiriri 400m, 5-XI-1953, W. Forster (ZSM) .

Measurements (n= 2). Total length: 21.2–21.7; head length: 1.6–1.9; head width: 3.5–3.7; pronotum length: 4.3–4.7; pronotum width: 14.3–14.5; scutellum length: 9.2–10,1; scutellum width: 7.3–7.4; abdominal width: 12.3– 12.6; length antennomeres: I: 1.0; II: 2.2–2.3; III: 2.4–2.5; IV: 5.0.

Diagnosis. Large (21.2–21.7 mm). Dorsal body surface olive green, densely punctured (Fig. 69 C). Ventral surface dark yellow with transversal black bands on thorax and abdomen (Fig. 69 D). Antennae reddish brown (Fig. 69 C–D). Pronotum with brown to concolorous with the surrounding surface punctures (Fig. 69 C); anterolateral margin and cicatrices with brown punctures (Fig. 69 C). Humeral angles short (1.22 times wider than long); apex with black spot restricted to the angles in dorsal and ventral views; bent backward (Fig. 69 C–D). Scutellum with brown punctures (Fig. 69 C); apex not reaching the end of coria (Fig. 69 C). Coria with all veins concolorous with the surrounding surface (Fig. 69 C). Connexival segments with concavities almost entirely covered by subrectangular black spots separated by a large yellow median spot (Fig. 69 C), spots extending ventrally, triangular (Fig. 69 D). Posterolateral angles of connexivum with apices black (Fig. 69 C). Ventral surface, thorax with black bands; dark band of the propleura covering 2/3 of the width of the sclerite (Fig. 69 D). Proepisternum with dark band (Fig. 69 D). Evaporatorium concolorous with the surrounding surface; peritreme straight (Fig. 69 D). Metasternal process (Figs. 47 F; 69 D) with arms of anterior bifurcation straight and laterally expanded at apex; anterior bifurcation little excavated receiving fourth and a small part of the third rostral segment. Legs with tibiae and tarsi reddish, remaining yellow (Fig. 69 D). Abdomen with spine of segment III rounded (Fig. 47 F). Intersegmental areas covered by narrow solid black bands with well-defined margins, reaching the lateral spots (Fig. 69 D). Pseudosutures concolorous with the surrounding surface (Fig. 69 D, dark lines are a deterioration of the exoskeleton). Near the spiracle a circular brown spot (Fig. 69 D). Median longitudinal brown band incomplete (Fig. 69 D). Trichobothria both parallel to the spiracle. Male genitalia, dorsal side of the pygophore with a suffused dark brown area occupying 1/3 of the surface (Fig. 47 A–B). Posterolateral angles of pygophore very developed, well projected laterally, apices with spots black (Fig. 47 A–B, E). Superior processes of the genital cup triangular, narrow, continuing ventrally in a crenulate, short and high carina (Fig. 47 B, E, crenulate carina barely visible). Parameres (Fig. 47 D–E) with brown margins; anterior lobe rounded; dorsal lobe subrectangular, with curved apex; posterior lobe rounded. Proctiger, posterior face subelliptical (Fig. 47 D–E). Surface ventral with dark spot medial and laterally (Fig. 47 C). Ventral rim with lateral subdistal tuft of setae (Fig. 47 A, C); with expansions developed, rounded, concolorous with the surrounding surface (Fig. 47 C). Female genitalia. Unknown.

Comments. See comments on E. (E.) brevihumeralis sp. n. . Both species differ only in the characteristics of the genitalia, such as the posterolateral angles of pygophore, shape of the superior processes of the genital cup, parameres and posterior face of proctiger.

Distribution (Fig. 72). PERU: Ucayali; BOLIVIA: Cochabamba.