Edessa lavata Breddin 1903

Edessa lavata Breddin, 1903

(Figs. 10, 11, 31 A)

Edessa lavata Breddin, 1903: 123; Kirkaldy, 1909: 159; Gaedike, 1971: 90.

Edessa lavata. Lectotype male. Bolivia (SDEI). Designated by Gaedike (1971:90, by use of “Holotypus”). Examined (Fig. 10 C)

Edessa lavata. Paralectotype. Pieter van Doesburg registered a female syntype (ex coll Schouteden) in Brussels (Personal notes). Not examined by the authors.

Material examined. BRAZIL, Amazonas: 1♁, Médio Purus, 6-X-1979, J. Campbell (INPA); 1♁, Médio Purus, 15-X-1979, J. Campbell (INPA); 1♀, Médio Purus, 10-X-1979, J. Campbell (INPA); Rondônia: 1♀, Fazenda Rancho Grande, 5–17-X-1993, J. E. Eger & L. B. & C. W. O’Brien (JEE); 1♁, Rio Pedro, Cacaulândia, 8–20-XI-1994, J. E. Eger coll. (JEE).

Measurements (n= 5). Total length: 20.4–23.6; head length: 1.8–2.3; head width: 3.6–3.7; pronotum length: 3.7–4.1; pronotum width: 12.5–14.1; scutellum length: 9.5–10.9; scutellum width: 7.0–8.0; abdominal width: 12.0– 13.5; length antennomers: I: 1.0–1.0; II: 2.0–2.5; III: 1.5–2.0; IV: 4.5–5.0; V: 5.0.

Diagnosis. Specimens large (20.4–23.6 mm). Dorsal surface of the body olive green (Fig. 10 A,F). Ventral surface yellow to orange with transversal black lines on thorax and abdomen (Fig. 10 B,G). Antennae reddish brown (Fig. 10 F,G). Pronotum with punctures black to brown (Fig. 10 A,F); anterolateral margin and cicatrices with brown punctures (Fig. 10 A,F). Humeral angles short (1,5 times wider than long) (Fig. 10 A,F), apices black (Fig. 10 F); humeral angle dark spot restricted to the angle in dorsal and ventral views (Fig. 10 F,G) (but concolorous with pronotum in poorly preserved lectotype, Fig. 10 A). Scutellum with brown punctuation (Fig. 10 A,F); apex not reaching end of corium (Fig. 10 A,F). Corium with all veins concolorous with surface (Fig. 10 A,F). Posterolateral angles of connexivum with apices black (Fig. 10 A,F); connexival segments with concavities entirely covered by rectangular black spots and separated by a large median light orange spot (Fig. 10 A,F), spots extending ventrally, subtriangular (Fig. 10 B,G). Ventral surface. Thorax with brown to black stripes (Fig. 10 B,G); dark stripe of the propleuron covering 1/3 of the width of the sclerite (Fig. 10 G). Evaporatorium concolorous with thorax (Fig. 10 B,G). Metasternal process (Fig. 11 G) with anterior apex straight and laterally little expanded, margin acuminated; anterior face slightly excavated; anterior bifurcation receiving fourth rostral segment. Legs brown (Fig. 10 B,G). Abdomen with spine of third segment acuminated (Fig. 11 G). Intersegmental areas brown to black, reaching ventral spots of connexivum (Fig. 10 B,G). Pseudosutures concolorous with surface (Fig. 10 B,G). Median longitudinal brown band restricted to last segment (Fig. 10 B,G). Trichobotria both in line with spiracles. Posterolateral angles of segment VII not reaching the level of apices of laterotergites IX in females (Figs. 10 G, 11 F). Male genitalia, posterolateral angle of pygophore very developed (Fig. 11 A). Superior process of genital cup laminar, rectangular, thick, posterior face coarse and concave (Fig. 11 B,E); process continuing ventrally in a crenulated high carina (Fig. 11 B,E). Ventral rim setose with medial tuft (Fig. 10 D,E). Female genitalia, laterotergites VIII with one dark spots on outer lateral margins (Fig. 11 F).

Male genitalia (Figs. 10 D,E; 11 A,E): Parameres with brown margins, anterior lobe rounded, dorsal lobe subtriangular and laterally folded; posterior lobe subtriangular (Fig. 10 D,E, 11 D,E). Proctiger with pentagonal posterior face (Fig. 10 D,E, 11 D,E). Ventral rim with expansions slightly developed and concolorous with surface (Fig. 11 C). Ventral surface (Fig. 11 C) of the pygophore with brown spots.

Female genitalia: Valvifers VIII with dark punctures; inner margins brown and contiguous, divergent distally forming V-shaped excavation; distal margin brown and arched. Laterotergites IX with apices acuminate passing the sclerite uniting laterotergites VIII (Fig. 11 F).

Comments. Female is described for the first time. This species resembles Edessa urus and E. electa by the large size of the body (Figs. 10 A,B,F,G, 25 C,D, 29 E,F), shape of the humeral angle (Figs. 10 A,B,F,G, 25 C,D, 29 E,F) and color of the connexivum (Figs. 10 A,B, F,G, Fig. 25 C,D, 29 E,F). E. (E.) lavata can be separated from E. (E.) urus by the humeral angle black (Fig. 10 F) (concolorous in E. urus — Fig. 29 E) and more developed (Figs. 10 F, 29 E), and pronotal margin more concave (Figs. 10 F, 29 E) than in E. (E.) urus. E. (E.) lavata has the pronotal angle more directed backwards than in E. electa (Figs. 10 F, 25 E); spots of the connexivum are rectangular (Fig. 10 A,F) (triangular in E. (E.) electa — Fig. 25 F); and anterior arms of metasternal process with apex rounded in E. (E.) lavata (Fig. 11 G) (straight in E. (E.) electa — Fig. 5 G).

Distribution (Fig. 31 A): BRAZIL: Amazonas, Rondônia.