Schraderiellus luteipedis 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 : 61-62

Schraderiellus luteipedis Roell & Campos , sp. nv.

( Figs. 3I–J , 5M–O , 6D , 7D , 8E , 9D )

Etymology: The name refers to the yellow tibiae.

Latin = luteus, yellow; pedis, foot.

Holotype: male, here designated. ECUADOR, Esmeraldas: (Quininde), 9.xii.1983, MI Salazar. Deposited in: AMNH.

Paratypes. COLOMBIA, Cauca: (Isla Gorgona, malaise trap), 1♀, 29.ii-5.iii.2000, B. Brown, G. Kung & M. Sharkey (JEE) Deposited in: JEE; Rio Dagua: 1♀, WFH Rosenberg (USNM) Deposited in: USNM; Dept. Valle Lower Anchicayá: (400m, tropical very wet forest), 1♀, 5.iii.1976, R Wilkerson (JEE) Deposited in: UFRG. ECUADOR, 1♀, Rosenberg (USNM) Deposited in: USNM; Pichincha: (Sto. Domingo), 1♀, 25.xii.1971, N Venedictaff (UFRG) Deposited in: UFRG; (Tinalandia, 15km from Sto Domingo toward Quito), 1♀, 15.viii.1975, J Longino (FSCA) Deposited in: FSCA.

Description. Dark brown to black, some specimens with a light yellow line in the lateral margins of pronotum and of basal half of corium. One yellow spot at each radial vein of hemelytra; usually one yellow spot at middle of the base of scutellum and three at its apex. Coxae, trochanter, and femora brown; yellow spot on coxae and trochanter in some specimens. Tibiae and tarsi yellowish ( Fig. 3I–J ).

Male. Measurements (n=3): head length 2.80 ± 0.00 (2.80–2.80); width 3.12 ± 0.00 (3.12–3.12); pronotum length 3.46 ± 0.10 (3.35–3.55); width 6.29 ± 0.08 (6.25–6.39); scutellum length 5.67 ± 0.0 (5.67–5.67); width 3.90 ± 0.0 (3.90–3.90); abdomen length 4.94 ± 0.22 (4.75–5.18); width 6.36 ± 0.11 (6.25–6.46); length of antennal segments: I 1.21 ± 0.17 (1.08–1.40); II 1.05 ± 0.10 (0.93–1.12); III 2.14 ± 0.27 (1.86–2.40); IV 2.20 ± 0.27 (1.90– 2.40); V 2.60 ±; length of labial segments: I 1.74 ± 0.07 (1.70–1.82); II 3.01 ± 0.06; III 2.14 ± 0.27 (1.95–2.33); IV 2.49 ± 0.22 (2.25–2.70); total length 13.51 ± 0.32 (13.26–13.88).

Genitalia. Pygophore subglobular, castaneous; posterolateral angles divergent, stout, posteriorly depressed, apices rounded ( Fig. 5M–O ). Parameres yellowish, subparallel to posterolateral angles, spatulate, base cylindrical, apices flattened with subapical denticle laterally directed ( Figs. 5M–O , 6D ). Segment X subcylindrical, basal portion membranous forming a concave line on the limit with the sclerotized area ( Fig. 5M–O ). Phallotheca globose, vesica sinuous, almost as long as phallotheca ( Fig. 7D ).

Female. Measurements. (n=6): head length 2.82 ± 0.07 (2.88–2.72); width 3.16 ± 0.06 (3.08–3.16); pronotum length 3.63 ± 0.12 (3.50–3.78); width 6.65 ± 0.21 (6.90–6.88); scutellum length 5.82 ± 0.15 (5.60–5.82); width 5.18 ± 0.74 (4.47–5.82); abdomen length 6.18 ± 0.68 (5.46–6.80); width 7.72 ± 0.91 (6.67–8.30); length of antennal segments: I 1.24 ± 0.06 (1.20–1.32); II 1.21 ± 0.02 (1.20–1.24); III 2.27 ± 0.09 (2.20–2.40); IV 2.32 ± 0.12 (2.20–2.44); V 2.65 ± 0.13 (2.56–2.80); length of labial segments: I 1.75 ± 0.10 (1.60–1.80); II 3.04 ± 0.12 (2.92–3.20); III 2.50 ± 0.10 (2.40–2.60); IV 2.67 ± 0.02 (2.64–2.68); total length 14.35 ± 0.28 (14.04–14.66).

Genitalia. Gonocoxites VIII oval, longer than wide, covering the base of laterotergites IX, posterior margins over gonocoxites IX rectilinear. Laterotergites IX digitiform, directed diagonally to apex ( Fig. 8E ). Inner arms of gonocoxites IX widening to apex. Vesicular area of ductus receptaculi about five times longer than the combined length of pars intermedialis and capsula seminalis ( Fig. 9D ).

Distribution: Colombia, 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.