Edessa (E.) nigriclava Walker, 1868

Mendonça, Maria Thayane Da Silva, Silva, Valéria Juliete Da & Fernandes, José Antônio Marin, 2023, Diagnose of the nominal subgenus of Edessa and description of the E. sexdens group (Heteroptera, Pentatomidae, Edessinae), Zootaxa 5240 (1), pp. 1-63 : 37

Edessa (E.) nigriclava Walker, 1868

( Figs. 15 , 28 A,B , 30 A )

Edessa nigriclava Walker, 1868: 446 ; Lethierry & Severin, 1893: 192; Kirkaldy, 1909: 161; Silva et al., 2018: 422 .

Edessa nigriclava . Lectotype male. Amazon region ( BMNH). Examined.

Edessa nigriclava . Paralectotype female. Same data ( BMNH) .

Material examined. VENEZUELA, Bolívar: 1♁, Caripito , 18-VII-1953, C. J. Rosales & J. R. Requena coll. ( MIZA) . BRAZIL, Pará: 1♁ 1♀, Óbidos, VI-1978, A. C. Domingos (Compared to the type — Fernandes JAM, 1999) ( MNRJ); 1♁, Óbidos, V-1954, J. Brazillino coll. ( MNRJ — Campos Seabra Collection); 1♁, Óbidos, XII-1953, J. Brazillino coll. ( MNRJ — Campos Seabra Collection ) .

Measurements (n= 5). Total length: 15.8–16.8; head length: 1.7–1.8; head width: 3.0–3.1; pronotum length: 3.2–3.5; pronotum width: 10.9–11.4; scutellum length: 7.4–7.7; scutellum width: 5.7–6.0; abdominal width: 8.7– 8.8; length antennomers: I: 0.9–1.0; II: 1.2–1.4; III: 1.5–1.6; IV: 3.5–0.0; V: 3.9–0.0.

Diagnosis. Specimens large (15.8–16.8 mm). Dorsal surface olive green ( Fig. 28 A ). Ventral surface dark yellow to green with transversal black lines on thorax and abdomen ( Fig. 28 B ). Antennae reddish brown ( Fig. 28 A ). Pronotum with punctures concolorous with surface to brown ( Fig. 28 A ); anterolateral margin and cicatrices with brown punctures ( Fig. 28 A ). Humeral angles short (1,4 times wider than long) ( Fig. 28 A ), apices black ( Fig. 28 A ); humeral angle black spot restricted to the angle in dorsal and ventral views ( Fig. 28 A,B ). Scutellum with punctures brown ( Fig. 28 A ); apex not reach end of corium ( Fig. 28 A ). Corium with all veins concolorous with surface ( Fig. 28 A ). Posterolateral angles of connexivum with apices concolorous with surface ( Fig. 28 A ); connexival segments without spot and flat ( Fig. 28 A ). Ventral surface. Thorax with black stripes ( Fig. 28 B ); dark stripe of the propleuron covering 1/3 of the width of the sclerite ( Fig. 28 B ). Proepisternum with dark stripe ( Fig. 28 B ). Evaporatorium concolorous with thorax ( Fig. 28 B ). Metasternal process ( Fig. 15 G ) with anterior apex rounded and laterally well expanded, margin rounded; anterior face somewhat excavated; anterior bifurcation receiving fourth rostral segment. Legs brown ( Fig. 28 B ). Abdomen with spine of third segment acuminated ( Fig. 28 B ). Intersegmental areas black not reaching lateral margin ( Fig. 28 B ). Pseudosutures partially covered by superficial black stripe ( Fig. 28 B ). Median longitudinal brown band restricted to last segment ( Fig. 28 B ). Trichobotria one in line with spiracle and the other laterad. Posterolateral angles of segment VII not reaching the level of apices of laterotergites IX in females ( Fig. 15 F ). Male genitalia, posterolateral angle of pygophore slightly developed ( Fig. 15 A ). Superior process of genital cup laminar, rectangular, thick, flattened and coarse in posterior view, continuing ventrally in a crenulated high carina ( Fig. 15 B,E ). Ventral rim with long setae, but without a lateral tuft ( Fig. 15 C ). Female genitalia, laterotergites VIII without dark band on outer lateral margins ( Fig. 15 F ).

Male genitalia ( Fig. 15 A–E ): Parameres with black margin; anterior lobe subtriangular and rounded; dorsal lobe rounded and subtriangular, curved apex; posterior lobe subtriangular and rounded ( Fig. 15 B,D,E ). Proctiger with subelliptical posterior face ( Fig. 15 D,E ). Ventral rim with expansions undeveloped and concolorous with surface ( Fig. 15 C ).

Female genitalia: Valvifers VIII with dark punctures; inner margins contiguous, with brown band and not divergent; distal margin with a brown band and arched. Laterotergites IX with apices acuminate passing the sclerite uniting laterotergites VIII ( Fig. 15 F ).

Comments. The Edessa (E.) nigriclava is similar to E. (E.) gentilitia and E. (E.) phoenicopus . See Comments of E. (E.) gentilitia .

Distribution ( Fig. 30 A ): VENEZUELA: Bolívar; BRAZIL: Pará.

Figures

FIGURE 15. A–G. Edessa (E.) nigriclava Walker, 1868: A–E, pygophore in dorsal, dorsolateral, ventral, posterior and posterolateral views, respectively; F, genital plates; G, metasternal process. Scale 1 mm.

FIGURE 28. A–F. Dorsal and ventral surface: A–B, Edessa (E.) nigriclava Walker, 1868; C–D, Edessa (E.) nigricornis Stål, 1862; E–F, Edessa (E.) nigroangulata Fernandes & Silva, 2015. Scale 5 mm.

FIGURE 30. A–B. Distribution map of the species.