Xynocoris egeri Garbelotto & Campos

Garbelotto, Thereza De A., Campos, Luiz A. & Grazia, Jocelia, 2014, Xynocoris, new genus of Ochlerini from Central and South America (Hemiptera: Pentatomidae: Discocephalinae), Zootaxa 3869 (3), pp. 281-305 : 298-299

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https://doi.org/ 10.11646/zootaxa.3869.3.4

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scientific name

Xynocoris egeri Garbelotto & Campos

sp. nov.

Xynocoris egeri Garbelotto & Campos sp. nov.

( figs. 2E View FIGURE 2 ; 8E; 9 View FIGURE 9 D)

Etymology. The epithet is a tribute to Dr. J. E. Eger, as an acknowledgement for his contribution to this work by loaning specimens.

Type-locality. Brazil, Piracicaba (-22.7167; -47.6333).

Female Holotype. BRAZIL, São Paulo: Piracicaba, 10.X.1965, C. A. Triplehorn, [-22.7167; -47.6333], BL Trap, Alitocoris sp. det. J. E. Eger, 2008 ( JEE) GoogleMaps Deposited in: AMNH .

Paratype. COSTA RICA, Alajuela: La Fortuna (15km SW Volcán Arenal, Arenal Vista Logde), 1 female, 13–15.VIII.1995, J. E. Eger, [10.4833; -846500], Collected at Mercury Vapor and Black Light Costa Rica collecting permit No 0 0 113412 (JEE) Deposited in: AMNH .

Description. Body oval, brown; punctures black; small yellowish spots denser on corial surface. Legs light brown, contrasting with body. Antennae five-segmented.

Head with spots on vertex, clypeus and mandibular plates; punctures forming wrinkles on vertex. Apices of mandibular plates juxtaposed, exceeding clypeus by a distance equivalent to the ocellar diameter; lateral margins of mandibular plates slightly reflected. Eyes not pedunculated. Anteocular processes projected, attaining 1/3 of the eye width. Antennal tubercle covered dorsally by anteocular process. Antennae brown, five-segmented, first segment bearing dorsal longitudinal yellowish spot; proportion of antennal segments: I≈II<III≈IV<V, fifth the longest. Ventrally with 1+1 yellowish carinae posterior to the eyes. Bucculae without anterior tooth. Rostrum yellowish, second segment reaching mesocoxae, Apex on urosternite III; proportion of rostral segments: I<II>III≈IV.

Pronotum with punctures forming wrinkles posterior to cicatrices; yellowish spots inconspicuous. Cicatrices slightly tumid, with punctures. Anterior angles of pronotum with projections parallel to posterior margins of eyes, exceeding laterally the eye by almost the eye diameter. Anterolateral and posterolateral margins subrectilinear. Scutellum with yellowish spots inconspicuous on disc; punctures forming wrinkles. Corium reaching posterior margin of connexival segment VI; spot on apex of radial vein inconspicuous. Hemelytral membrane surpassing the apex of abdomen, bearing eight veins. Pleurae and sterna black. Evaporatorium black; peritreme almost reaching the margin of evaporatorium. Legs light brown contrasting with body color; femora with brown circular spots, tibiae dorsally brown.

Segments of connexivum bearing middle yellowish spots. Abdomen ventrally brown; punctures shallow to inconspicuous on disc. Yellowish maculae before spiracles present (fig. 8E).

Female. Measurements (n=2): head length, 1.33 ± 0.11 (1.25–1.40); width, 1.98 ± 0.04 (1.95–2.00); pronotum length, 1.98 ± 0.04 (1.95–2.00); width, 4.68 ± 0.11 (4.60–4.75); scutellum length, 3.20 ± 0.07 (3.15–3.25); width, 2.73 ± 0.04 (2.70–2.75); length of antennal segments: I, 0.50 ± 0 (0.50–0.50); II, 0.43 ± 0.04 (0.40–0.45); III, 0.78 ± 0.04 (0.75–0.80); IV, 0.85 ± 0.07 (0.80–0.90); V, 1.45 ± 0.07 (1.40–1.50); length of rostrum segments: I, 0.80 ± 0.14 (0.70–0.90); II, 1.43 ± 0.11 (1.35–1.50); III, 0.88 ± 0.11 (0.80–0.95); IV, 0.78 ± 0.11 (0.70–0.85); total length, 7.24 ± 0.20 (7.10–7.38); abdominal width, 4.65 ± 0.05 (4.62–4.69).

Genitalia. Gonocoxites 8 longer than wide; posterior margins convex; posterolateral projection over laterotergites 8 surpassing median portion of posterior margin; sutural angles rounded; disc with low callus closer to posterior margins (fig. 8E). Laterotergites 8 longer than wide; middle yellowish spot present (fig. 8E). Gonocoxites 9 triangular, longitudinal suture conspicuous (fig. 8E). Laterotergites 9 reaching the band connecting laterotergites 8; apex tumid (fig. 8E). Thickening of vaginal intima subrectangular ( fig. 9D View FIGURE 9 ). Ring sclerites placed close to but not touching the lateral limits of the thickening of gonapophyses 9. Ductus receptaculi anterior to vesicular area shorter than the intermediary duct; vesicular area at least three times longer than pars intermedialis plus capsula seminalis ( fig. 9D View FIGURE 9 ). Length of tubular portion of ductus receptaculi posterior to the vesicular area equals half the length of vesicular area ( fig. 9D View FIGURE 9 ). Pars intermedialis slightly wider on middle, capsula seminalis bearing apical processes ( fig. 9D View FIGURE 9 ).

Male. Unknown.

Comments. X. egeri sp. nov. ( fig. 2E View FIGURE 2 ) is the sister group of X. insularis sp. nov. ( fig. 1 View FIGURE 1 ; Garbelotto et al. 2013, ‘sp. 16’); diagnostic characters of X. egeri sp. nov. are the eyes not pedunculated, the anterior margin of scutellum without median spot and 1+1 light brown spots near the fovea, and the shape of genital plates (fig. 8E).




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