Edessa (Edessa) brevihumeralis sp. n.

(Figs. 6, 55 E–F, 72)

Etymology. The name refers to the length of the humeral angles (L. brevis, short; L. humerus, shoulder).

Material examined. Holotype male. BRAZIL, Mato Grosso: Diamantina, Fazenda S „o Jo„o, III-1979, O. Roppa & A. Domingos (MNRJ).

Paratypes. BRAZIL, Mato Grosso: 1♀, same data as holotype (MNRJ); 1♁, Utiariti, Rio Papagaio, 1–12-XI-1966, Lenko & Pereira (MZUSP) ; Rondônia: 1♀, Ariquemes, Fazenda Rancho Grande 62 km SW, 4–6-XI-1997 (JEE) . PERU, Loreto: 1 ♁, Yurimaguas, IV-1929, H. S. Parigh (USNM) .

Measurements (n= 5). Total length: 16.8–19.1; head length: 1.5; head width: 2.9–3.4; pronotum length: 3.3– 3.5; pronotum width: 11.1–12.0; scutellum length: 7.9–9.0; scutellum width: 5.8–6.5; abdominal width: 9.2–10.0; length antennomeres: I: 0.9–1.0; II: 1.5–1.6; III: 1.6–2.0; IV: 3.8–3.9; V: 4.0–4.2.

Diagnosis. Large (16.8–19.1 mm). Dorsal body surface olive green (Fig. 55 E). Ventral surface dark yellow with transversal black lines on thorax and bands on abdomen (Fig. 55 F). Antennae reddish brown (Fig. 55 E). Pronotum densely punctured, with brown punctures (Fig. 55 E); anterolateral margin and cicatrices with black punctures. Humeral angles short (1.25 times wider than long); apex with black spot restricted to the angles in dorsal and ventral views; slightly bent posteriorly (Fig. 55 E–F). Scutellum with brown punctures; apex not reaching the end of coria (Fig. 55 E). Coria with all veins lighter than surrounding area (Fig. 55 E). Connexival segments with concavities almost entirely covered by subrectangular black spots separated by a large yellow median spot (Fig. 55 E); black spots extending ventrally, triangular (Fig. 55 F). Posterolateral angles of connexivum with apices black (Fig. 55 E). Ventral surface, thorax with black lines; dark line of propleura covering 2/3 of the width of the sclerite (Fig. 55 F). Evaporatorium concolorous with the surrounding surface (Fig. 55 F). Metasternal process (Fig. 6 G) with arms of anterior bifurcation straight and laterally barely expanded at apex; anterior bifurcation somewhat excavated receiving fourth and a small part of the third rostral segment. Legs with tibiae and tarsi reddish, remaining yellow to orange (Fig. 55 F). Abdomen with spine of segment III acuminated (Fig. 6 G). Intersegmental areas covered by narrow solid black bands with well-defined margins, reaching the lateral spots (Fig. 55 F). Pseudosutures concolorous with the surrounding surface (Fig. 55 F, dark lines are a deterioration of the exoskeleton). Median longitudinal brown band incomplete, restricted to the segment VII (Fig. 55 F). Trichobothria one in line with spiracle and the other laterad. Posterolateral angles of segment VII exceed the level of apices of laterotergites IX (Fig. 6 F). Male genitalia, posterolateral angles of the pygophore developed, projected laterally (Fig. 6 A–B); apices with spot black (Fig. 6 A–B, D–E). Superior processes of the genital cup rectangular, narrow, flattened and coarse in posterior view, continuing ventrally in a crenulate high carina with a dentiform projection (Fig. 6 B, E, crenulate carina barely visible). Parameres (Fig. 6 C–D) dark brown; anterior lobe large and subrectangular; dorsal lobe large, laterally curved and subtriangular; posterior lobe large and rounded. Proctiger, posterior face triangular (Fig. 6 D–E). Ventral surface densely punctured; points distributed in “V”. Ventral rim setose, with median tuft (Fig. 6 A,C); with expansions little developed, rounded and concolorous with the surrounding surface (Fig. 6 C). Female genitalia, plates with dark and deep punctures. Valvifers VIII, sutural margins contiguous and brown, distally with small U-shaped concavity; posterior margin sinuous. Laterotergites VIII with one small dark spot adjacent to outer lateral margins. Laterotergites IX with apices rounded, exceeding the mediotergite VIII (Fig. 6 F).

Comments. Edessa (E.) brevihumeralis sp. n. resembles Edessa (E.) imitans sp. n., Edessa (E.) indiscreta sp. n., Edessa (E.) tenuivittata sp. n., and Edessa (E.) lavata Breddin, 1903 (see Mendonça et al., 2023, Figs. 10 F–G, 11 F). The five species have a dark spot on the humeral angles restricted to the angles in dorsal view, and ventrally black intersegmental areas on the abdomen. Species can be separated by some characteristics, pronotum with black punctures in cicatrices occurs in E. (E.) brevihumeralis sp. n., E. (E.) tenuivittata sp. n. and E. (E.) lavata; while genital plates punctured with black punctures are found in E. (E.) brevihumeralis sp. n., E. (E.) imitans sp. n. and E. (E.) lavata, but the shape of the apices of laterotergites IX are different ( E. (E.) brevihumeralis sp. n. rounded, E. (E.) imitans sp. n. and E. (E.) lavata acuminated).

Distribution (Fig. 72). BRAZIL: Mato Grosso, Rondônia; PERU: Loreto.