Edessa bituberculata, 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 : 579-580

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.