Elanela ecuatoriana, Barros & Barão & Grazia, 2020

Barros, Lurdiana Dayse De, Barão, Kim Ribeiro & Grazia, Jocelia, 2020, New species and new distributional records of Elanela Rolston, 1980 (Heteroptera: Pentatomidae), Zootaxa 4747 (3), pp. 585-592 : 588-590

Elanela ecuatoriana sp. nov.

( Figures 8–15 , 16 )

Type material. HOLOTYPE, 1♂, ECUADOR, Napo, Tiputini, Biodiversity Station , 216m, 0°37’55” S 76°08’39” W, 21-X-1998, T. L. Erwin, et al. leg. ( USNM) <illustrated male >. PARATYPES, 1♀, ECUADOR, Napo, Tiputini, Biodiversity Station , 216m, 0°37’55” S 76°08’39” W, 26-X-1998, T. L. Erwin, et al. leg. ( USNM) <illustrated female >; 1♀, ECUADOR, Napo, Tiputini, Biodiversity Station , 216m, 0°37’55” S 76°08’39” W, 5-II-1999, T. L. Erwin, et al. leg. ( USNM) .

Etymology. Genitive singular; name in reference to the collection locality in Napo, Ecuador.

Diagnosis. Dorsal rim and ventral rim of pygophore, each with a medial process; head of parameres quadrate covering segment X basally; process of segment X spatulate, narrower basally than apically, and U-shaped apically, surpassing posterior margin of pygophore. Pars intermedialis elongate, as long as capsula seminalis. Capsula seminalis ovate with a lateral process.

Description. Head wider than long, castaneous with black punctuation, proportion of antennomeres I <II <III <IV <V. Evaporatorium black. Ventral pleurites and sternites of males black ( Fig. 9 ). In females ( Fig. 11 ), abdominal sternites yellowish with scattered brownish spots; lateral margins of each abdominal sternite immaculate; posterolateral angles of each abdominal sternites black. Legs with black spots.

Male genitalia ( Figs 12–13 ). Pygophore rectangular (longer than wider); posterolateral angles (pa), dorsal rim, and parameres (par) densely setose. Medial process of dorsal rim robust, notched posteriorly, almost reaching parameres. Ventral rim divided into two layers, the inferior and superior layers of ventral rim; area between the two layers excavated and setose; superior layer of ventral rim deeply U-shaped medially with a median process. Segment X with spatulate process, narrow basally, U-shaped medio-apically, surpassing the posterior margin of pygophore. Head of parameres quadrate, covering segment X basally.

Female genitalia ( Figs 14–15 ). Genital plates setose ( Fig. 14 ). Gonocoxites VIII flat, wider than longer, posterior margins straight, lateral margins rounded, sutural margins juxtaposed. Gonocoxites IX rectangular, swollen. Laterotergites VIII triangular, posterolateral angles rounded, posterior margins with minute projection closer to laterotergites IX, anterior margins slightly overlapping gonocoxites VIII, bearing spiracle. Laterotergites IX spatulate. Segment X rectangular. Distal ductus receptaculi almost twice as long as proximal ductus receptaculi, both shorter than the vesicular area; pars intermedialis elongate, as long as capsula seminalis. Annular flanges divergent. Capsula seminalis ovate with small lateral process.

The area surrounding gonapophyses IX was damaged, not allowing the study of chitinellipsen nor the thickening of vaginal intima.

Measurements. Total length, 7.00 ± 0.45 (6.62–7.50); length of head, 1.15 ± 0.09 (1.07–1.25); head length ahead of eyes, 0.89 ± 0.02 (0.87–0.92); interocular distance, 1.00; length of antennal segments: I, 0.32; II, 1.00 ± 0.06 (0.95–1.00); III, 0.79 ± 0.07 (0.75–0.87); IV, 1.55 ± 0.10 (1.50–1.67); V, 1.70 ± 0.14 (1.62–1.87); width of head, 1.91 ± 0.07 (1.87–2.00); width of pronotum, 4.11 ± 0.32 (3.75–4.35); length of pronotum, 1.50 ± 0.15 (1.35–1.65); width of scutellum, 2.38 ± 0.09 (2.28–2.47); length of scutellum, 2.49 ± 0.07 (2.43–2.58); width of abdomen at third segment, 4.20 ± 0.14 (4.12–4.37).

Distribution. Ecuador ( Fig. 16 ).

Comments. Elanela ecuatoriana sp. nov. and E. nigrofemorata are similar, but the legs of E. ecuatoriana are black-spotted whereas in E. nigrofemorata only the distal-half of each femur is spotted in black. Moreover, the identification of each species is unambiguous by the male genitalia.

The female genitalia of E. ecuatoriana is similar to the female genitalia of E. scutomaculata , but in the former, the gonocoxites VIII are wider than long and not juxtaposed basally, the gonocoxites IX are swollen, and a spiracle is present on each laterotergite VIII.

Figures

FIGURE 16. Known occurrence records of species of Elanela Rolston, 1980. Map adapted from Grazia et al. (2016) to include E. colombiana sp. nov. and E. ecuatoriana sp. nov. (highlighted in red) and the new record of E. jordi.

FIGURES 8–11. Elanela ecuatoriana sp.nov. Habitus in dorsal and ventral views, respectively; 8–9, male; 10–11, female. Scale bars = 0.5 mm.

FIGURES 12–15. Genitalia of Elanela ecuatoriana sp.nov. 12–13, pygophore in dorsal and ventral views, respectively; 14, female genital plates in posteroventral view; 15, female receptaculum seminis and ausenwand. Abbreviations: aaf, anterior annular flange; vr, ventral rim; cs, capsula seminalis; dr, dorsal rim; ddr, distal ductus receptaculi; pdr, proximal ductus receptaculi; g9, gonapophyses IX; gc8, gonocoxites VIII; gc9, gonocoxites IX; la8, laterotergites VIII; la9, laterotergites IX; mpdr, medial process of dorsal rim; mpvr; medial process of ventral rim; pa, posterolateral angle; par, paramere; paf, posterior annular flange; pi, pars intermedialis; prX, process of segment X; slvr, superior layer of ventral rim; tvi, thickening of vaginal intima; va, vesicular area; X, abdominal segment X. Scale bars: 0.5 mm.