Edessa nigriventris Santos & Fernandes

Santos, Bianca Tamires Silva Dos, Nascimento, Agata Tyanne Silva & Fernandes, José Antônio Marin, 2014, Proposition of a new species group in Edessa Fabricius, 1803 (Hemiptera: Heteroptera: Pentatomidae: Edessinae), Zootaxa 3774 (5), pp. 441-459 : 453-455

Edessa nigriventris Santos & Fernandes sp. nov.

( Figs. 32–36 ; 47; 54; 56)

Etymology. Name refers to the predominantly black ventral color of the body.

Holotype ♂. MEXICO. Puebla: 2 mi NE Teziutlan, Hyw 129, 5400’. 11-vi-1983. C. and L.O’ Brien and Marshall (USNM).

Paratypes. MEXICO, Colima: 6♂ 4♀ 14 mi NE Tecoman, 2000’, Hwy 200, 9-viii-1982, C.W. and L. O’Brien and G. Wibmer (DAR); ♀ same data (UFGS). Michoacán: ♂ 23 mi. W Ciudad Hidalgo, Hwy. 15, 8700’, 7-viii- 1982. C.W. and L. O’Brien and G. Wibmer (DAR); Puebla: ♂ ♀ 5 mi NE Teziutlan, 4700 ft., 27-vi-1953, (UFGS); 18♂ 6♀ 2 mi NE Teziutlan, Hyw 129, 5400’, 11-vi-1983, C. and L. O’ Brien and Marshall (DAR); ♂ same data (UFGS); 4♂ ♀C. and L. O’ Brien (DAR); ♂10 2 mi NE Teziutlan, Hyw 129, 5400’, 11-vi-1983, L. O’Brien (DAR); 2♀ same data (UFGS); 1♂ 1♀ 6 mi NE Teziutlan, 27-vi-83. 4700 Ft.(DAR); ♀ 5 mi W. Teziutlan, Hwy. 129, 7500’, 18-viii-1982, C.W. and L. O’Brien and G.B. Wibmer (DAR); 23♂ 16♀ 5 mi S. Teziutlan, Hwy. 131, 7500’, 18-viii-1982, C.W. and L. O’Brien and G.B. Wibmer (DAR). ♀♂same data (AMNH); ♀♂ same data (CAS); ♀♂ same data (NHRM); ♀♂ same data (SEMC); ♀♂ same data (USNM); Hidalgo: 10♂ 22♀ 23 mi NW Jacala, Hwy. 85, 5500’, 25-vii-1982. C.W. and L. O’Brien and G. Wibmer (DAR); ♀♂ same data (RMNH); ♀♂ (BMNH); ♀♂ same data (NMP); 8♂ 18 mi NW Jacala, Hwy. 85, 5700’, 25-vii-1982. C.W. and L. O’Brien and G. Wibmer (DAR); ♀ 2 mi. N. Tlanchinol, 9-v-1983, C.W. and L. O’Brien and Marshall (DAR); ♂ same data (UFGS); 4♂ 2,4 mi N. Tlanchinol, Hwy. 105, 5000’, 2-viii-1982. C.W. and L. O’Brien and Marshall (DAR); ♂ 8-v-1983. C.W. and L.O’Brien and G. B. Marshall (DAR); 9♂ 4♀ 1-viii-1982 O’Brien and G. Wibmer. (DAR); ♂♀ same data (UFGS); 2♂ 2,7 mi N. Tlanchinol, 14-vi-83 (DAR); 4♂ 5♀ 2-viii-1982, C.W. and L. O’Brien and G. Wibmer (DAR); ♂♀ 31-vii- 1982 C.W. and L. O’Brien and G. Wibmer (DAR); ♂ 20 mi N. Metzquititlan, 6600’, 10-v-1983, G.B. Marshall, C.W. and L. O’ Brien (DAR); 3♂ 20 mi N. Metzquititlan, 6600’, 10-v-1983, G.B. Marshall, C.W. and L. O’Brien (DAR); Veracruz: ♂♀ Calcahualco, El Rincón de Atotonilco, 20-viii-1985, T.W. Taylor, P.H. Sullivan (DAR); ♂ 1 mi NW Altotonga, Hwy.131, 6000’, 13-vi-1983, C.W. and L. O’Brien and G.B. Marshall (DAR); 2♀ 20-viii-1982, C. and L. O’Brien and G. B. Wibmer (DAR); ♀♂ Vila Aldama, Las minas. 16-ix-1982. (UNAM).

Measurements. Head length (2–2.1); head width (3–3.2); pronotal length (1.8–2); pronotal width (4.8–5.8); total length (8.2–10); abdominal width (5–6.2).

Body dorsally green to greenish-brown with corium brown ( Fig. 47 ); ventrally mostly black ( Fig. 54 ). Cephalic disc punctured. Mandibular plates rugulose, bearing few concolorous punctures and elevated above level of clypeus. Ventral surface of head black but mandibular plates yellow, dark spotted above and below antenniferous tubercles; impunctate. Antennal segments faded black, segments third, fourth and fifth with basal white rings increasing in width. Pronotum uniformly green or greenish-brown with dark punctures; anterolateral margin yellow. Humeral angles with margins dark. Apex of scutellum with a yellow spot. Hemelytron with a suffused area on corium and a yellow distal calloused spot parallel to radial vein. Ventral punctures of thorax black. Metasternal process and evaporatorium without punctures. Peritrema yellow. Metasternal process yellow with a median dark spot; arms of bifurcation strong and divergent ( Fig. 36 ). Legs light brown and not spotted. Connexivum uniformly greenish-brown with some suffused spots or greenish-brown with a sinuous inner black stripe. Connexivum of segment VII with a distal black spot. Ventral surface of abdomen impunctate, black with yellow lateral spots and sometimes yellow mesial stripes. Pair of rounded black spots of segment VII visible in some females.

Male: Pygophore ( Figs. 32–34 ) mostly black or dark brown. Superior processes of the genital cup concave and elliptical; margins slightly tumid and distal one not reaching dorsal rim ( Figs. 32–33 ). Paramere pale with margins brown; broad and short, level with proctiger in posterior view; distal part with an outline subrectangular due to distal margin straight, anterior and posterior margins truncate; ventral process small and laterally curved ( Figs. 32– 33 ). Proctiger with only one keel; posterior face triangular and slightly emarginated ( Fig. 33 ). Ventral rim dark with fine and dark punctures; expansions acuminate and swollen ( Figs. 33–34 ).

Female: Gonocoxites 8 reddish-brown convex with a few concolorous punctures; excavation between medial margins deep, V-shaped ( Fig. 35 ), narrower than gonocoxite 9, rounded distally and leaving visible part of gonapophyses 8. Gonocoxite 9 constricted just below thick part, basal part slightly bent outwards forming a tiny conical projection. Laterotergites 9 grooved and not punctured, acuminate apex reaching or barely surpassing the band uniting laterotergites 8 ( Fig. 35 ).

Comments. This species is allied to E. pudibunda and E. nigridorsata (see E. pudibunda comments) but can be separate by its smaller size; greenish color; evaporatorium completely black; excavation between mesial margins of gonocoxites 8 narrow; shape of paramere and posterior face of proctiger. Edessa nigriventris and E. nigridorsata share ventral surface of the body almost completely black; first three antennal segments dark and not spotted; legs not dark spotted.

Distribution ( Fig. 56 ). Mexico: Colima, Michoacán, Puebla, Hidalgo, Veracruz.

Figures

FIGURE 56. Distribution of the species of the pudibunda group.

FIGURES 32 – 36. Edessa nigriventris sp. nov. 32 – 34, Male, pygophore; 32 — dorsal; 33 — posterior; 34 — ventral. 35 — Female, genital plates. 36 — Metasternal process; (Scale = 1 mm).

FIGURES 42 – 48. Photo of the species, dorsal view. 42 - Edessa godmani Distant, 1881; 43 — Edessa punctata sp. nov.; 44 — Edessa picticornis Stål, 1872; 45 — Edessa luteomaculata sp. nov.; 46 — Edessa pudibunda Stål, 1862; 47 — Edessa nigriventris sp. nov.; 48 — Edessa nigridorsata sp. nov.

FIGURES 49 – 55. Photo of species, ventral view. 49 - Edessa godmani; 50 — Edessa punctata sp. nov.; 51 — Edessa picticornis; 52 — Edessa luteomaculata sp. nov.; 53 — Edessa pudibunda; 54 — Edessa nigriventris sp. nov.; 55 — Edessa nigridorsata sp. nov.