Edessa bivenulata, Bitar & Mendonça & Fernandes, 2023

Bitar, Murilo Victor Silva, Mendonça, Maria Thayane Da Silva & Fernandes, José Antônio Marin, 2023, Description of seven new species of Edessa Fabricius, 1803 from Central America (Heteroptera, Pentatomidae, Edessinae), Zootaxa 5278 (3), pp. 578-600 : 582

Edessa bivenulata sp. n.

( Figs. 2; 8 B, E; 10 B)

Etymology. The name refers to the two small yellow veins in the corium.

Material examined. Holotype male. PANAMA, Chiriquí: 1 ♁, Hartmann’s Finca , 4–7–VII–1997, Morris & Wappes ( USNM).

Paratypes. COSTA RICA, Puntarenas: 1♁, Est. Pittier , PILA-ACLA, 1670 m, 5–18/I/1995, E. Navarro, L_ N_330900_577400#4585, INBIO CRI002 197264 ( UFPA) ; 1♁, Est. Altamira, Buenos Aires , 15/IX–14/X/1993, R. Delgado, L S 572100_331700 #2370, INBIO CRI001 621007 ( INBio) ; PANAMA, Chiriquí: 1♁ 1♀, Hartmann’s finca, St. Clara , 15–18/VI/1985, Riley & Rider, D. A. Rider Collection ( DAR) ; 1♀, Hartmann’s Finca , 4–7–VII– 1997, Morris & Wappes (sp 188, Fernandes JAM) ( JEE) .

Measurements (n= 6): antennomeres length: 1st: 0.56–0.61mm; 2nd: 1.25–1.47mm; 3rd: 1.68–1.79mm; 4th: 2.55–3.11mm; 5th: 2.72mm; head length: 1.21–1.54mm; head width: 2.53–2.78mm; pronotal length: 2.49–2.69mm; pronotal width: 7.51–8.22mm; scutellum length: 6.05–6.59mm; scutellum width: 4.37–4.93mm; abdominal width: 7.24–7.93mm; total length: 14.30–14.64mm.

Diagnosis: body dorsally green except brown corium ( Fig. 8 B). Antennae brown, 4th and 5th antennomeres with basal halves whitish ( Fig. 8 B). Anterolateral margin of pronotum with narrow yellowish stripe ( Fig. 8 E). Pronotum and scutellum with punctures dark brown, irregularly distributed ( Fig. 8 B). Pronotum with small callosity adjacent to humeral angles bearing a tiny dark line ( Fig. 8 B). Corium with basal, black, lateral stripe ( Fig. 8 B). Connexival segments with whitish medial spot. Ventral surface: yellow with brown narrow stripes on thorax and abdomen ( Fig. 8 E). Anterior bifurcation of metasternal process with arms short, broad, apices rounded ( Fig. 2 F). Male genitalia: pygophore subtrapezoidal ( Fig. 2 A, B). Posterolateral angles slightly developed ( Fig. 2 A). Superior process of the genital cup spearhead-shaped, bifid posteriorly ( Fig. 2 C, D). Parameres with anterior lobe subrectangular and short ( Fig. 2 C, D); posterior lobe short and curved ( Fig. 2 C, D). Proctiger laterally shallowly excavated ( Fig. 2 C, D); dorsal margin with broad, brown carina ( Fig. 2 C); posterior face triangular ( Fig. 2 C). Ventral rim with V-shaped median notch ( Fig. 2 B). Female genitalia ( Fig. 2 E): genital plates sparsely punctured. Valvifers VIII inner margins forming a deep U-shaped excavation.

Description: head: clypeus and jugae, slightly ridged. Bucculae subtriangular, harboring first labial segment.

Thorax: dorsal surface: humeral angles concolorous with dorsum, straight, about as long as the width of an eye ( Fig. 8 B). Scutellum with punctures sparser on anterior half than on posterior half ( Fig. 8 B). Corium with margin and two curved spots and parts of few veins yellow ( Fig. 8 B). Membrane transparent, brown ( Fig. 8 B). Ventral surface: prothorax with irregularly distributed and light brown punctures ( Fig. 8 E). Propleuron with dark brown arched stripe between anterolateral angle and procoxal cavity. Mesothorax unpunctured ( Fig. 8 E). Mesopleuron with thin black stripe on margin adjacent to propleuron and small black line close to coxa ( Fig. 8 E). Peritreme ruga-like, reaches 2/3 of the distance between ostiole of the scent gland and lateral margin of metapleuron. Metasternal process with anterior arms slightly divergent, anterior bifurcation receiving only fourth rostral segment ( Fig. 2 F).

Abdomen: dorsal surface: connexival segments with posterolateral angles black; last connexival segment with narrow distal black spot. Male genitalia: dorsal rim dark brown in an area delimited by indentation and coincident with parameres ( Fig. 2 A). Posterolateral angles truncated ( Fig. 2 A). Superior process of the genital cup dark brown ( Fig. 2 C, D). Expansions of the ventral rim slightly swollen ( Fig. 2 B). Female genitalia ( Fig. 2 E): valvifers VIII convex; lateral margin sinuous, excavation exposing valvulae IX. Laterotergites VIII distally sharp, outer lateral margin softly arched; free distal spinose part about 1/6 of its length. Valvifers IX smooth, subtrapezoidal. Laterotergites IX slightly surpassing sclerite uniting laterotergites VIII.

Differential diagnosis: Edessa bivenulata sp. n. is almost identical to E. bituberculata sp. n. (see differential diagnosis on E. bituberculata sp. n.). The species E. bivenulata sp. n. may be readily distinguished from E. bituberculata sp. n. by the presence of a black stripe on the basal outer lateral margin of the corium ( Fig. 8 B) (not present in E. bituberculata sp. n. — Fig. 8 A).

Distribution ( Fig. 10 B): COSTA RICA: Puntarenas; PANAMA: Chiriquí.