Edessa bituberculata Bitar & Mendonça & Fernandes 2023, sp. n.
Creators: name: Bitar, Murilo Victor Silva
name: Mendonça, Maria Thayane Da Silva
name: Fernandes, José Antônio Marin
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Pentatomidae
Edessa
Edessa bituberculata

description: Edessa bituberculata sp. n.
(Figs. 1; 8 A, D; 10 A)
Etymology. The name refers to the tiny tubercles on pronotum.
Material examined. Holotype male. COSTA RICA, Puntarenas: 1♁, Fca. Cafrosa, Est. Las Mellizas, P. N. Amistad, 1300m, II–1991, G. Mora, L–S–316100, 596100 (Costa Rica, INBIO CRI000 612655) (INBio).
Paratypes. COSTA RICA, Puntarenas: 1♁, Finca Cafrosa, Embalce, 800m, N. O. de Tigra, 1280m, 17–24/ IV/1996, E. Navarro, L_S_317800_596200 #7115, CRI002 439098 (INBio); 1♁, Estac. Biol. La Cruces, 17–20/ IV/2003, Coll. E. G. Riley, ENTO–X0686477 (TAMU); 1♁, Fca. Cafrosa, Est. Las Mellizas, P. N. Amistad, 1300m, II–1991, G. Mora, L–S–316100, 596100 (Costa Rica, INBIO CRI000 612656; Edessa sp. det. J. E. Eger, 2000; sp 196, Fernandes, JAM) (INBio); 1♀, Fca. Cafrosa, Est. Las Mellizas, P. N. Amistad, 1300m, 20–VIII–4–IX–1989, M. Ramirez & G. Mora, 316100 596100 (Costa Rica, INBIO CRI001 015425; sp 196, Fernandes JAM) (INBio); 1♀, ACLAP, Mellizas, Sabalito, Coto Brus., Fca Willian Gamboa, 1300–1400m, 1–IV–2006, J. A. Azofeita, M. Moraga, B. Gambos. Tp. Luz, L_S_316200_596800 #85933 (Costa Rica, INBIOCRI INB0004007081; sp 196 Fernandes JAM) (INBio); PANAMA, Chiriquí: 1♁, Volcán de Chiriquí, 2-3000 ft, 1908, Champion, Museum Paris, Amérique Centrale, Coll. Du Bio. Central Amer., Godman (MNHN); 1♀, Dst. Renacimiento Sta. Clara, 20–22/V/1977, Engleman, at lights (DOE).
Measurements (n= 8): antennomeres length: 1st: 0.50–0.54mm; 2nd: 1.23–1.33mm; 3rd: 1.46–1.71mm; 4th: 2.75–2.90mm; 5th: 3.10mm; head length: 0.99–1.28mm; head width: 2.41–2.43mm; pronotal length: 1.99–3.10mm; pronotal width: 6.59–7.20mm; scutellum length: 5.19–5.63mm; scutellum width: 3.97–4.01mm; abdominal width: 6.27–6.79mm; total length: 11.33–12.71mm.
Diagnosis: body dorsally green except variegated brown corium and yellow connexivum (Fig. 1 A). Antennae brown, last segment with basal and distal parts whitish (Fig. 8 A). Anterolateral margin of pronotum with narrow yellowish stripe (Fig. 8 A). Pronotum and scutellum with punctures dark brown, irregularly distributed (Fig. 8 A). Pronotum with small callosity adjacent to humeral angles bearing a tiny dark line (Fig. 8 A). Ventral surface: yellow with faded to dark brown stripes on thorax and abdomen (Fig. 8 D). Anterior bifurcation of metasternal process with arms short, thin, apices rounded (Fig. 8 D). Male genitalia: pygophore subtrapezoidal (Fig. 1 A, B). Posterolateral angles undeveloped (Fig. 1 A). Superior process of the genital cup with blade-like dorsal part fused to dorsal rim, ventral tongue-like part free (Fig. 1 C, D). Parameres with anterior lobe triangular, narrow, long, almost reaching dorsal rim; posterior lobe long and strongly curved (Fig. 1 C, D). Proctiger laterally broadly and shallowly excavated (Fig. 1 C, D); dorsal margin with conspicuously brown carina (Fig. 1 C, D); posterior face triangular (Fig. 1 C). Ventral rim with subrectangular median notch (Fig. 1 B). Female genitalia (Fig. 1 E): genital plates unpunctured. Valvifers VIII short with posterior margin acuminated.
Description: head: clypeus and jugae, slightly ridged. Bucculae subtriangular, harboring first labial segment.
Thorax: dorsal surface: humeral angles straight, about as long as the width of an eye (Fig. 8 A). Scutellum with punctures larger and sparser on anterior half than on posterior half, unpunctured distally. Corium with parts of the veins, lateral margin and small spots yellow (Fig. 8 A). Membrane transparent, brown (Fig. 8 A). Ventral surface: prothorax and mesothorax with brown punctures (Fig. 8 D). Propleuron with diffuse brown arched stripe between anterolateral angle and procoxal cavity (Fig. 8 D). Mesopleuron with anterior transverse black stripe that curves and widens laterally (Fig. 8 D). Peritreme ruga-like, reaching 2/3 of the distance between ostiole of the scent gland and lateral margin of metapleuron (Fig. 8 D). Metasternal process with anterior arms slightly divergent (Fig. 8 D); anterior bifurcation receiving only fourth rostral segment and a small portion of third (Fig. 8 D). Abdomen: dorsal surface: posterolateral angle of connexival segments black (Fig. 8 A); last connexival segment with distal black spot comprising less than half segment (Fig. 8 A). Male genitalia: dorsal rim dark brown in a narrow area delimited by small tooth (Fig. 1 A). Posterolateral angles truncated, slightly developed (Fig. 1 A). Superior process of the genital cup black (Fig. 1 C, D). Expansions of ventral rim not inconspicuous (Fig. 1 B). Female genitalia (Fig. 1 E): valvifers VIII with inner margins strongly and abruptly divergent towards apex, exposing valvulae IX. Laterotergites VIII acute distally, outer lateral margin softly arched; free distal spinose part about 1/5 of its length. Valvifers IX smooth and trapezoidal. Laterotergites IX slightly surpassing sclerite uniting laterotergites VIII.
Differential diagnosis: Edessa bituberculata sp. n. is very similar to E. bivenulata sp. n. (Fig. 8A, B). However, E. bituberculata sp. n. has a large basal yellow area on corium (Fig. 8 A) and mesothorax with dark punctures (Fig. 8 D) while E. bivenulata sp. n. do not show these characteristics (Fig. 8 B, E). Moreover, E. bituberculata sp. n. has the superior process of genital cup fused to dorsal rim (Fig. 1 C, D) (free in E. bivenulata sp. n. — Fig. 2 C, D), subrectangular notch on ventral rim (Fig. 1 B) (V-shaped notch in E. bivenulata sp. n. — Fig. 2 B), lateral excavation of proctiger larger than in E. bivenulata sp. n. (Figs. 1 C; 2 C), and posterior face of proctiger smaller than in E. bivenulata sp. n. (Figs. 1 C; 2 C). Females have valvifers VIII distal part of inner margins V-shaped while in E. bivenulata sp. n. they are U-shaped (Figs. 1 E; 2 E).
Distribution (Fig. 10 A): COSTA RICA: Puntarenas; PANAMA: Chiriquí.
description: Published as part of 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), pp. 578-600 in Zootaxa 5278 (3) on pages 579-580, DOI: 10.11646/zootaxa.5278.3.9, http://zenodo.org/record/7906748