Candeocoris bistillatus Roell & Campos

Roell, Talita & Campos, Luiz Alexandre, 2015, Candeocoris bistillatus, new genus and new species of Ochlerini from Ecuador (Hemiptera: Heteroptera: Pentatomidae), Zootaxa 4018 (4), pp. 573-583 : 578-581

Candeocoris bistillatus Roell & Campos , sp. nov.

Etymology. the epithet refers to a large yellow spot on each corium; Latin: bi-, two, stillatus, drop.

Type-locality. Ecuador, Cotopaxi, San Francisco de Las Pampas (02º60’00” S, 78º58’00” W).

Male Holotype. ECUADOR, Cotopaxi: San Francisco de Las Pampas, 1300–1500m, II.1993, L. Bartolozzi (La Specola). Deposited in the Museo Regionale di Scienze Naturali (MRSN).

Paratypes: 13♀, 10♂, same data as the Holotype. 5♀, 4♂ deposited in the MRSN; 4♀, 3♂ deposited in the American Museum of Natural History, USA (AMNH) and 4♀, 3♂ deposited in the Museu de Ciências Naturais da Fundação Zoobotânica do Rio Grande do Sul, Brazil (MCNZ)

Description. Body dark brown, with variable yellow spots. Most specimens with a small median spot near the anterior margin of pronotum, three spots at base of scutellum; large spot at radial vein of each corium; and one mesial spot on each connexival segment, continuing onto lateral margin of respective urosternite. Labrum sinuous, bent frontwards almost forming a loop (fig. 3A).

Antennal tubercles partially visible from above; intersegmental areas and basal half of fifth segment yellowish; relative length of segments: I<II<III<IV<V. Bucculae elevated, round posteriorly and with triangular tooth anteriorly. Labium attaining urosternite IV, first segment reaching prosternum, second segment longest, reaching mesocoxae; relative length of segments: I<II>III<IV. Connexivum exposed. Abdominal spiracles darker than surrounding area.

Male. Measurements (n=11): head length 1.83 ± 0.11 (1.64–1.92); width 2.10 ± 0.05 (2.04–2.16); pronotum length 1.83 ± 0.06 (2.52–2.70); width 5.21 ± 0.08 (5.10–5.29); scutellum length 4.24 ± 0.13 (4.03–4.41); width 3.40 ± 0.09 (3.27–3.52); abdomen length 4.94 ± 0.13 (4.85–5.04); width 5.91 ± 0.09 (5.85–5.98); length of antennal segments: I 0.51 ± 0.05 (0.40–0.56); II 0.58 ± 0.04 (0.48–0.60); III 0.83 ± 0.08 (0.80–1.00); IV 1.00; V 1.40; length of labial segments I 0.85 ± 0.10 (0.77–0.93); II 1.08; III 0.93; IV 1.08; total length 9.73 ± 0.22 (9.50– 10.00).

Genitalia. Posterolateral angles (fig. 4, pa) of pygophore extending posteriorly to the ventral rim by the length of segment X (fig. 4, X), dorsal surface shallowly excavated, apices round, with tumescent projection directed dorsally (fig. 4, dp). Ventral rim with 1+1 laminar projections (fig. 4C, lp) connecting the posterolateral angles to middle line of ventral rim. Setae present on posterolateral angles of the pygophore, opposite to the parameres. Segment X (fig. 4, X) progressively darker, thicker and wider towards the apex; apex almost flat (fig. 4, a), projecting posteriorly to anal opening (fig. 4, ao). Parameres falciform (fig. 5), head lateral toand surpassing apex of segment X (fig. 4, par); apex of head bearing a mesial triangular projection (fig. 5, mp) directed towards segment X, basal projection (fig. 5, bp) obtuse, directed laterad. Phalloteca globose (fig. 6, ph), heavily sclerotized; vesica (fig. 6, v) short with a single median projection, hood shaped; ductus seminis distalis (fig. 6, ds) short, placed at base of vesica.

Female. Measurements (n=13): head length 1.99 ± 0.19 (1.84–2.32); width 2.17 ± 0.1 (2.12–2.36); pronotum length 2.70 ± 0.20 (2.45–2.77); width 5.24 ± 0.20 (5.04–5.60); scutellum length 4.30 ± 0.05 (4.22–4.34); width 3.41 ± 0.10 (3.27–3.52); abdomen length 5.22 ± 0.18 (5.10–5.35); width 6.17 ± 0.18 (6.04–6.30); length of antennal segments I 0.50 ± 0.07 (0.40–0.60); II 0.60 ± 0.01 (0.60–0.64); III 0.80 ± 0.04 (0.72–0.84); IV 0.80 ± 0.10 (0.84–1.08); V 1.43 ± 0.11 (1.28–1.56); length of labial segments I 1.00 ± 0.10 (0.93–1.08); II 1.20 ± 0.17 (1.08– 1.33); III 1.08; IV 1.55; total length 9.91 ± 0.16 (9.60–10.00).

Genitalia. Gonocoxites 8 (fig. 7A, gc8) longer than wide, posterior margin biconvex, sutural angle convex. Laterotergites 8 (fig. 7A, la8) triangular, posterior margin sinuous. Gonocoxites 9 (fig. 7A, gc9) longer than wide; middle portion elevated forming a carina, convex in profile. Laterotergites 9 (fig. 7A, la9) reaching the band connecting laterotergites 8. Gonapophyses 9 (fig 7B, D, g9) weakly sclerotized, bent posteriorly adjacent to ring sclerites (fig. 7B, rs). Ring sclerites large, located on folds of gonapophyses 9. Thickening of vaginal intima (fig. 7B, vi) subcylindrical and elongated, almost as long as the combined length of gonapophyses 9 and gonocoxites 9. Orificium receptaculi located on apex of vaginal intima. Vesicular area of the ductus receptaculi about five or six times longer than the combined length of pars intermedialis and capsula seminalis; medial duct (fig. 7B, md) fusiform at base and progressively wider towards apex; inner duct (fig. 7B, id) progressively narrower towards the apex of vesicular area, corrugated at base and near pars intermedialis. Pars intermedialis twice the length of capsula seminalis (fig. 7B, pi, cs). Capsula seminalis globose, bearing three long and wide processes (fig. 7C). Anterior annular ridge long and directed to pars intermedialis; posterior annular ridge short and perpendicular to pars intermedialis.