Schraderiellus rufilineatus Roell & Campos

Roell, Talita & Campos, Luiz Alexandre, 2018, Phylogeny and revision of Schraderiellus Rider, 1998 with the description of five new species (Hemiptera, Pentatomidae, Discocephalinae, Ochlerini), Zootaxa 4508 (1), pp. 47-67 : 60-61

Schraderiellus rufilineatus Roell & Campos , sp. nv.

( Figs. 3G–H , 5J–L , 6C , 7C , 8D , 9C )

Etymology: The name refers to the reddish line surrounding the body.

Latin = rufus, red, reddish; lineatus, delineate.

Holotype: male, here designated. COSTA RICA, Puntarenas: (Las Alturas Field Station, 20km N San Vito de Hava), 26-30.iii.1991, DeVries (AMNH) Deposited in: AMNH.

Paratypes. COSTA RICA, 2♂ (USNM) Deposited in: USNM; Prov. Cartago, (Tapanti, 1200m), 1♂, M. Valerio (CAS) Deposited in: CAS; Puntarenas: (Monte Verde), 1♂, 3.vi.84, E. Riley, D. Rider & LeDoux (DARC) Deposited in: DARC; 1♀, 26.v.1992, B.C Ratcliffe & M.L. Jameson (AMNH) Deposited in: AMNH; (Rio Bellavista, 8º95’1’’ N 82º84’6’’ W, 1400m), 1♀, 8–9.iv.1987, Holzenthal, Hamilton & Heyn (JEE) Deposited in: JEE; (Las Alturas Field Station 20km N San Vito de Hava, 1400m), 2♀ and 1♂, 20–24.v.1991, DeVries (AMNH) Deposited in: AMNH; (Las Alturas Field Station 20km N San Vito de Hava, 1540m), 1♂, 10–31.vii.1992, Snyder (AMNH) Deposited in: AMNH. PANAMA, Chiriqui: (2-3000ft; 25-4000ft Champion), 2♀ and 3♂, Uhler, Godman & Slavin (USNM) Deposited in: USNM; 2♂ (AMNH), Deposited in: AMNH; (Prov. Santa Clara), 24♀ and 22♂, 23–25.v.1980, E. Riley & LeDoux, (DARC; 2FSCA) Deposited in: DARC, 2 UFRG, FSCA; (Boquete), 10♀ and 5♂, vi.1939, JR Slevin (CAS; 1DARC) Deposited in: CAS; (Boquete, 1250m 8º48’ N 82º26’ W), 5♀, 24.viii.1975 – 29.ix.1975 – 8.ix.1977 – 4.iii.1978, H. Wolda (DARC) Deposited in: DARC; (Santa Clara, Dist. Renascimiento), 1♀, 21.v.1977, Al Thurman (DARC) Deposited in: DARC; 1♀, 20–22.v.77, Engleman (DARC) Deposited in: DARC; 6♀ and 1♂, 23–26.v.1980, BC Ractliffe (DARC) Deposited in: DARC; (Fortuna, 1050m. 8º44’ N, 15’ W), 11♀, 20.x.1977, 27.i.1978, 2.ii.1978, 27.iii.1978, 19.iv.1978, Henk Wolda (DARC, 1JEE) Deposited in: DARC, JEE; (Fortuna, 82º15’ W, 8º44’ N), 3♀ and 1♂, 16–19.v.1978, O’Briens & Marshall; (Hartmann’s Finca), 2♀, 4–7.vii.1997, Morris & Wappes (JEE) Deposited in: UFRG; Altos de Majé: (Isla, 9º8’ N 78º49’ W), 1♀, 28–30.v.1982. ECUADOR, (Rio Pesoado), 1♀, 5.21.22, GHH Tate, (USNM) Deposited in: USNM.

Description. Dark brown; lateral margins of the body (pronotum, scutellum, corium, connexivum) with orange-red line. Dorsal surface without spots or with few small yellow spots. Coxae, trochanter, femora and tibiae dark brown. Tarsi brown, yellowish or slightly stained in brown ( Fig. 3G–H ).

Male. Measurements (n=41): head length 2.55 ± 0.06 (2.44–2.64); width 2.95 ± 0.06 (2.88–3.04); pronotum length 3.20 ± 0.17 (2.96–3.46); width 6.13 ± 0.14 (5.82–6.24); scutellum length 5.19 ± 0.15 (4.91–5.41); width 4.04 ± 0.12 (3.90–4.26); abdomen length 5.00 ± 0.14 (4.82–5.11); width 6.35 ± 0.19 (6.03–6.74); length of antennal segments: I 1.17 ± 0.06 (1.08–1.24); II 1.14 ± 0.07 (1.04–1.16); III 1.98 ± 0.03 (1.96–2.00); IV 2.12 ± 0.10 (2.00–2.20); V 2.46 ± 0.08 (2.40–2.60); length of labial segments: I 1.61 ± 0.08 (1.52–1.68); II 2.84 ± 0.15 (2.60–3.08); III 2.28 ± 0.15 (2.08–2.60); IV 2.60 ± 0.12 (2.36–2.76); total length 12.80 ± 0.42 (12.16–13.41).

Genitalia. Pygophore subglobular, castaneous; posterolateral angles moderately divergent, inner surface castaneous or yellowish, stout, posteriorly depressed, apices obtuse. Apex of the posterolateral angle narrower than base and ventrally curved in some specimens ( Fig. 5J–L ). Parameres subparallel to posterolateral angles, attaining or slightly surpassing the apex of segment X, spatular, base cylindrical and apex expanded and flattened terminating with an apical tooth-like projection on lateral margin, sometimes laterally sinuous; setae on anterolateral portion of parameres, directed to posterolateral angles ( Figs. 5J–L , 6C ). Segment X subcylindrical, basal portion membranous forming a concave line at the limit with the sclerotized area ( Fig. 5J–L ). Phallotheca globose, vesica sinuous, almost as long as phallotheca ( Fig. 7C ).

Female. Measurements (n=71): head length 2.67 ± 0.17 (2.34–3.10); width 3.07 ± 0.11 (2.88–3.28); pronotum length 3.47 ± 0.21 (3.08–3.90); width 6.77 ± 0.35 (6.53–8.03); scutellum length 5.70 ± 0.26 (4.82–6.04); width 4.52 ± 0.40 (4.04–4.85); abdomen length 6.15 ± 0.49 (5.68–7.60); width 7.62 ± 0.70 (6.24–8.60); length of antennal segments: I 1.24 ± 0.06 (1.08–1.40); II 1.18 ± 0.08 (1.00–1.32); III 2.03 ± 0.12 (1.80–2.28); IV 2.18 ± 0.09 (2.04–2.32); V 2.56 ± 0.19 (2.00–2.84); length of labial segments: I 1.71 ± 0.07 (1.60–1.84); II 3.03 ± 0.14 (2.68–3.20); III 2.44 ± 0.13 (2.20–2.80); IV 2.71 ± 0.12 (2.40–2.84); total length 14.51 ± 0.58 (12.79–15.44).

Genitalia. Gonocoxites VIII oval, longer than wide, covering the base of laterotergites IX, margins slightly sinuous, posterior margin over gonocoxites IX convex. Laterotergites IX digitiform, directed diagonally to apex ( Fig. 8D ). Inner arms of gonocoxites IX widening towards apex, more sclerotized than disc. Vesicular area of ductus receptaculi about six times longer than the combined length of pars intermedialis and capsula seminalis ( Fig. 9C ).

Distribution: Costa Rica, Panama and Ecuador.

Figures

FIGURE 3. Species of Schraderiellus, dorsal and ventral habitus. A, B, S. hughesae; C, D, S. cinctus; E, F, S. luridomaculatus sp. nv.; G, H, S. rufilineatus sp. nv.; I, J, S. luteipedis sp. nv.; K, L, S. brevicolis sp. nv.; M, N, S. falcatus sp. nv.. Scale bars = 1mm.

FIGURE 5. Pygophores in posterior, dorsal and lateral views. A–C, S. hughesae; D–F, S. cinctus; G–I, S. luridomaculatus sp. nv.; J–L, S. rufilineatus sp. nv.; M–O, S. luteipedis sp. nv.; P–R, S. brevicolis sp. nv.; S–U, S. falcatus sp. nv.. Abbreviations: dr, dorsal rim; il, inferior layer; p1, dorsal projection of the posterolateral angles; p2, basal projection of the posterolateral angles; pa, posterolateral angles; par, parameres; vr, ventral rim; X, segment X. Scale bars = 1mm.

FIGURE 6. Parameres; dorsal, posterior, inner lateral and external lateral respectively. A, S. hughesae; B, S. cinctus; C, S. rufilineatus sp. nv.; D, S. luteipedis sp. nv.; E, S. brevicolis sp. nv.; F, S. falcatus sp. nv.. Scale bar: 0.5mm.

FIGURE 7. Male internal genitalia (phallus), lateral view. A, S. hughesae; B, S. cinctus; C, S. rufilineatus sp. nv.; D, S. luteipedis sp. nv.; E, S. brevicolis sp. nv.; F, S. falcatus sp. nv.. Scale bars = 0.5mm

FIGURE 8. Female genital plates, posterior view. A, S. hughesae; B, S. cinctus; C, S. luridomaculatus sp. nv.; D, S. rufilineatus sp. nv.; E, S. luteipedis sp. nv.. Abbreviations. gcVIII, gonocoxites VIII; gcIX, gonocoxites IX; laVIII, laterotergites VIII; laIX, laterotergites IX; X, segment X. Scale bars: 1mm.

FIGURE 9. Female internal genitalia, posterior view. A, S. hughesae; B, S. cinctus; C, S. rufilineatus sp. nv.; D, S. luteipedis sp. nv.. Abbreviations: cs, capsula seminalis; gcIX, gonocoxites IX; gpIX, gonapophyses IX; id, inner ducts; laIX, laterotergites IX; md, medium ducts; od, outer ducts; pi, pars intermedialis; rs, ring sclerites; vi, vaginal intima. Scale bars: 0.5mm.