Hymenoepimecis ribeiroi Pádua & Sobczak, 2015

Pádua, Diego G., Oliveira, Marcio L., Onody, Helena C., Sobczak, Jober F., Sääksjärvi, Ilari E. & Gómez, Isrrael C., 2015, The Brazilian Amazonian species of Hymenoepimecis Viereck, 1912 (Hymenoptera: Ichneumonidae: Pimplinae), Zootaxa 4058 (2), pp. 175-194 : 188-190

Hymenoepimecis ribeiroi Pádua & Sobczak sp. n.

( Figs 59–63 )

Diagnosis. This species can be distinguished from all other Hymenoepimecis by the combination of the following characters: 1) fore wing hyaline yellowish, with two blackish bands; 2) occipital carina reduced and slightly curved dorsal part; 3) female with ovipositor 1.2–1.3 × as long as hind tibia.

Description. Female. Body [7.8] 7.6–9.2 mm; face [1.0] 0.8–1.0 × as broad as high (from supraclypeal suture to base of antenna), smooth, slightly convex with few spaced bristles; head in dorsal view with genae strongly narrowed behind eyes; posterior ocelli separated from eyes by [1.25] 1.0–1.25 × its own maximum diameter; occipital carina projected, reduced and lightly curved upwards dorsally. Pronotum long, smooth and polished, with distance from tegula to head is greater than [0.62] 0.6–0.7 × distance from tegula to hind margin of propodeum with an anteriorly, and opening pocket-like structure not reduced longitudinally; mesoscutum smooth and polished; scutellum, in profile, convex; mesopleuron smooth and polished, with anterodorsal and posterodorsal parts bearing sparse, fine setiferous punctures; metapleuron smooth and polished, rather uniformly covered with sparse, fine setiferous punctures; propodeum smooth, polished, with sparse, fine setiferous punctures and with lateral longitudinal carina present only posteriorlly. Fore wing with [6.4] 5.8–7.4 mm; cu-a more or less interstitial to the base of Rs&M; 2 rs-m [0.3] 0.3–0.4 × as long as abscissa of M between 2 rs-m and 2 m-cu; abscissa of Cu 1 meeting 1 m-cu equidistant between Cu 1 a and Cu 1 b; hind wing with [4.8] 4.3–5.4 mm; abscissa of Cu 1 meeting cu-a equidistant between M and 1 A; Hind leg with tibia + tarsus [0.6] 0.6–0.7 × the fore wing length; tarsal claw elongated vertically, with apex slightly overtaking the lobe. Metasoma slender; tergite I [1.7] 1.7–1.8 × as long as posteriorly broad, centrally quite strongly convex with lateral carinae only presente at extreme anterior end flanking the anterior concavity; sternite I with a low, rounded swelling posteriorly; tergite II [1.2] 1.2–1.4 × as long as posteriorly broad; tergites III–IV [1.0] 1.0–1.2 × as long as posteriorly broad; ovipositor [1.27] 1.2–1.3 × as long as hind tibia.

Coloration. Head black, mouthparts yellowish, with apex mandible black; antenna brown. Mesosoma orange. Anterior and median leg orange, the hind leg black, with base of femur orange. Fore wing hyaline yellowish, with apex distal to 2 rs-m blackish, and with a blackish median band extending backwards from anterior margin, just veins Rs+M and junction of pterostigma with vein R 1, but not reaching the base; pterostigma black with yellowish apex; hind wing with slightly blackish band in median part. Metasoma orange, tergites VI+ black; ovipositor black with base, apex and sheath brownish.

Male. ( Fig. 60 ). Similar to female in structure and coloration, but with tarsal claw simple; body with 5.5–7.7 mm; fore wing with 4.3–6.1 mm; clypeus slightly pale in the apex; hind leg orange, with tibia and tarsus blacks. Genital capsule ( Figs 77–79 ): Paramere rounded apically, slightly narrower than the parameral lamina, with bristles in apicodorsal margin; parameral lamina with bristles expaced, except in posterior part; volsellar lamina with bristles in anteromedian region; cuspis with tooth in apical part; digitus about 0.4 × the length of cuspis + volsellar lamina, with tooth in apex, rounded apically and angulated basally, as wide as the basal region; aedeagus (including aedeagal apodeme) about 0.95 × the length of paramere + parameral lamina (including parameral apodeme).

Variation. Some individuals of both sexes have the fore wing hyaline yellowish, with apex distal to 2 rs-m blackish, and with a blackish median band extending backwards from anterior margin, just veins Rs+M and junction of pterostigma with vein R 1, coming the base.

Distribution. Brazil (Amazonas, Pará, Rondônia) (Fig. 64).

Biological notes. Host unknown.

Etymology. This species honors José Moacir Ferreira Ribeiro, collector these species.

Type material. Holotype ♀. BRAZIL, Amazonas: Manaus, Reserva Ducke, Igarapé Tinga, iii.2003, Malaise (J.M.F. Ribeiro), INPA. Paratypes: Amazonas: Manaus, ZF–2, 2°38’24’’S / 60°09’30’’W, 02–05.xii.2013, Malaise (J.A. Rafael, J.T. Câmara & F.F. Xavier F°), 1 male, INPA; idem, but ZF–3, Km 23, Fazenda Esteio, Reserva 1301, 02°23’03’’S / 59°51’15’’W, 05.ii.1986 (B. Klein), 1 female, 0 0 0 3708, INPA; idem, but 10.iv.1985, 1 male, INPA; idem, but Reserva 1208, 02°22’34’’S / 59°52’39’’W, 11.vi.1985, 2 males, INPA; idem, but 16.vii.1985, 1 male, INPA; idem, but 17.ix.1985, 1 male, INPA; idem, but 10.vi.1986, 1 male, INPA; idem, but 04.vi.1985, 1 male (with the genitalia extracted), INPA; idem, but Reserva 1210, WWF, 22.xi.1984, 1 male, INPA; idem, but 05.ix.1985, 1 male, INPA; idem, but Reserva 1401, Gavião, 10–25.xi.1995 (without collector), 1 male, INPA; idem, but Reserva Ducke, Igarapé Ipiranga, v.2003 (J.M.F. Ribeiro), 1 male and 1 female, INPA; idem, but Igarapé Bolívia, 10.ii.2003, 1 female, INPA; idem, but Igarapé Ipiranga, v.2003, 1 male, INPA; idem, but 08–14.x.2005, (A.P. Aguiar), 1 male, INPA; Barcelos, Rio Demeni, viii.2008, Malaise (campinarana), (A. Silva & R. Machado), 1 male, INPA; Canutama, Floresta Estadual de Canutama, Rio Purus, Terra Firme, 01–10.v.2013, Malaise (M.L. Oliveira & A. Somavilla), 1 male, INPA; Humaitá, 54° BIS, 17–21.ix.1990, Suspensa trap (1,6 m), (R. Constantino), 1 male, MPEG; Ipixuna, Rio Liberdade, Estirão da Preta, 07°21’46,7’’S / 71°52’07,1’’W, 11–15.v.2011, Malaise (J.A. Rafael; J.T. Câmara; R.F. Silva; A. Somavilla & C. Gonçalves), 1 male, INPA; Maués, Rio Abacaxis, Campina, Pacamiri, 30–31.v.2008, Malaise (forest), (J.A. Rafael et al.), 1 male, INPA; Querari, 05.iv–27v.1993, Malaise (on igarapé), (J. Vidal), 4 males (one with genitalia extracted) and 1 female, INPA; Pará: Juruti, Trevo Mauari/Galiléia, 28.ii–04.iii.2008, Malaise (O. T. Ribeiro, Penna & Nazareno), 1 male (with genitalia extracted) and 1 female, MPEG; idem, but Ramal/Galileia, 26–29.v.2008 (J. Santos & L. Quaresma), 1 female, MPEG; Anapu, Caracol, Area 3, 03°27’39’’S / 51°40’8’’W, 02–06.ii.2008, Malaise (Silveira; Silva & Dias), 1 female, MPEG; Altamira, Rio Xingu, A1, Itapuama, S. Antônio, 19–23.viii.2008, Malaise (O.T. Silveira & J.O. Dias), 1 male, MPEG; Rondônia: Porto Velho, Rio Madeira, Area Caiçara, AHE Jirau, Transects C1–C3, 09°26’14,6’’S / 64°49’58,2’’W, 28.iv– 12.v.2013, Malaise (Fernandes, F.), 2 males, MZUSP; idem, but 27.iii–08.iv.2012 (Silva, R.R. & Albuquerque, E.Z.), 2 males, MZUSP; idem, but 17.vi–01. vii.2012, 1 male, MZUSP, idem, but Area Abunã, AHE Jirau, Transects A9–A11, 09°38’03,3’’S / 65°26’23,9’’W, 28.iv–12.v.2013 (Fernandes, F.), 1 male, MZUSP. Total: 31 males and 8 females.

Comments. Hymenoepimecis ribeiroi sp. n. closely resembles H. neotropica mainly by having fore wing hyaline yellowish, with two blackish bands and hind legs blacks. It differs from it by having the pronotum orange, female with ovipositor 1.2–1.3 × as long as hind tibia and tarsal claw with elongated vertically, with apex slightly overtaking the lobe. H. neotropical has the pronotum orange with black anterior part, female with ovipositor 1.5 × as long as hind tibia and tarsal claw with preapical tooth.

Figures

FIGURES 59 – 63. Hymenoepimecis ribeiroi sp. n.: 59, habitus (♀ holotype); 60, habitus (♂); 61, face, frontal view (♀ holotype); 62, head and anterior part of mesosoma, lateral view (♀ holotype); 63, sternite I, lateral view (♀ holotype). Figure 64. Distribution of Hymenoepimecis ribeiroi sp. n. species in the Brazil. Red circle = localities. Green area = Brazilian Legal Amazon.

FIGURES 71 – 82. Male genitalia of Hymenoepimecis species: dorsal view (left), ventral view (middle), and lateral view (right). 71 – 73, H. duckensis sp. n.; 74 – 76, H. manauara sp. n.; 77 – 79, H. ribeiroi sp. n.; 80 – 82, H. uberensis sp. n .. Scale bars: 0.1 mm.