Edessa picticornis Stål 1872

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 : 449

Edessa picticornis Stål 1872

( Figs.13–18 ; 44; 51; 56)

Edessa picticornis Stål 1872:58 ; Distant 1880: 95; Lethierry and Severin 1893: 193; Kirkaldy, 1909: 162.

Lectotype male: Mexico, Oaxaca (BMNH). Here designated.

Paralectotype female with the same data (BMNH).

Material. MEXICO, ♂ ♀ Sallé, Distant Coll. 1911-383, Edessa picticornis, Stål 1872 . Comp. W. Type. Fernandes, JAM 1999 ( BMNH). Oaxaca: ♀ 2 miles north, San Jose del Pacifico, 16-vii-1974, Clark, Murray, Asher, Schaffner (JEE).

Measurements. Head length (2.4–2.5); head width (3.2–3.5); pronotal length (2.3–2.6); pronotal width (6– 6.9); total length (11–12); abdominal width (6–6.5).

Body green with corium brown ( Fig. 44 ), ventrally dark yellow to brown ( Fig. 51 ). Cephalic disc not punctured. Mandibular plates smooth or rugulose; uniformly green or with a few dark punctures and spots; level with clypeus and cephalic disc but with a slight concavity at base. Ventral surface of head dark yellow, dark spotted above and below antenniferous tubercles; sparsely punctured. First three antennal segments light brown and densely spotted, fourth brown, basal third and apex of fifth segment whitish. Pronotum uniformly green, punctures dense and light brown; anterolateral margin yellow. Humeral angles with margins dark. Apex of scutellum with a faded impunctate area. Hemelytron with an oblique faded spot on corium. Ventral punctures of thorax concolorous. Metasternal process and evaporatorium with a few tiny dark punctures and spots. Metasternal process brown, arms of bifurcation lighter, strong and divergent ( Fig. 18 ). Legs densely dark spotted. Connexivum with greenish-brown and yellow spots, punctures dense brown or concolorous. Ventral surface of abdomen with dense dark punctures. Female with a rounded pair of dark spots on segment VII.

Male: Pygophore ( Figs. 13–15 ) dark brown. Superior process of the genital cup concave and subtriangular, posterior corner swollen, dorsal margin almost level with dorsal rim ( Figs. 13–14 ). Paramere uniformly brown, tall, progressively widened, and distally rounded, reaching dorsal rim in posterior view (not reaching in Fig. 14 due to drawing position); basal process small and subtriangular, mesial process triangular and larger than basal one ( Fig.14 ). Proctiger with one keel, posterior face subtriangular strongly emarginate due to deep lateral constrictions ( Figs. 14–15 ). Ventral rim dark brown with concolorous punctures; rounded expansion slightly swollen ( Figs. 14– 15 ).

Female: Gonocoxites 8 convex with sparse and dark punctures; medial margins slightly imbricate, posterior margin of both plates forming a “W”, excavation very large exposing part of gonapophyses 8 ( Figs. 16–17 ). Gonocoxite 9 slightly folded, anterior part pyramidal and mostly covered by gonapophyses 8. Laterotergites 9 with transverse grooves, dark punctures concentrated close to middle line; base concave, separate from gonocoxites 8 leaving a space in between them ( Fig. 17 ); apex rounded and surpassing the band uniting laterotergites 8 ( Fig. 16 ).

Comments. This species shares with Edessa luteomaculata sp. nov. body green dorsally with corium greenish-brown; apex of scutellum without a yellow spot; paramere clavate, broad with distal margin rounded; apex of the laterotergites 9 rounded. With the new species E. nigridorsata , it shares the posterior margin of gonocoxite 8 W-shaped. The syntypical series was examined and is formed by a pair; we here designate as lectotype the male specimen.

Distribution ( Fig. 56 ). Mexico: Oaxaca.

Figures

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

FIGURES 13 – 18. Edessa picticornis. 13 – 15, Male, pygophore; 13 — dorsal; 14 — posterior; 15 — ventral. 16 – 17, Female, genital plates, ventral and posterior respectively. 18 — 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.