Rabomia obscurior Hausmann & Tujuba, 2020

Tujuba, Tesfu Fekensa, Hausmann, Axel & Sciarretta, Andrea, 2020, Revision of the Orbamia Herbulot, 1966 group of genera with description of two new genera, ten new species, and two new subspecies (Lepidoptera, Geometridae, Ennominae, Cassymini), ZooKeys 929, pp. 53-77 : 53

Rabomia obscurior Hausmann & Tujuba sp. nov. Figures 16 , 34 , 52 , 70 , 83

Examined material.

Holotype: ♀, Burkina Faso (Upper Volta), Bobo Dioulesso, 6.10.81, leg. Dr Politzar, coll. ZSM (G 20915).

Paratypes: 1♀, Burkina Faso (Upper Volta), Bobo Dioulesso, 13.11.85, leg. Dr Politzar; 1♀: Burkina Faso (Upper Volta), Bobo Folonso, 28.7.79, leg. Dr Politzar; 1♂, id., 10.11.74; 1♂, Nigeria, Kaduna, 3.vii.1970, leg. Politzar, coll. ZSM (G 20926); 1♀, id., 28.vi.1970; 1♀, id., 26.vi.1970; 1♀, id., 8.vii.1970; 1♂, North Nigeria, Kogin Kano Game Reserve, 15.vi.1974, leg. Dr Politzar; 1♀, Cameroon, Yala Yarna, 40 km N of Ngaoundéré, 735 m, 22.vii.1974, leg. Gilles Clément (ZSM G 20925).

Etymology.

The name refers to the darker colouration of wings (Lat. obscurior = darker).

Differential features

(COI sequences, photographs of adults and their genitalia see https://dx.doi.org/10.5883/DS-ORBAMIA): Adult: Forewing length: 12-14 mm. Upperside of wings: Ground colour with darker suffusion than in R. subaurata , medial fascia dark and conspicuous on all wings, sometimes anastomosing with postmedial line on forewing. Underside: Ground colour yellow, discal spots larger than in R. subaurata , terminal fascia much broader, at centre of forewing termen interrupted by a small yellow spot or even uninterrupted. Male genitalia: Valva long and narrow, sacculus edged at tip, only shortly projecting, at the base of aedeagus a bundle of twelve comparatively short (0.15-0.2 mm) microcornuti. Female genitalia: Star-shaped signum large, diameter 0.8-1.0 mm.

Figures

Figures 1 - 18. Specimens of the genera Orbamia, Rabomia, and Morabia, dorsal view. 1 Orbamia octomaculata 2 O. marginata (paratype) 3 O. becki (holotype) 4 O. renimacula 5 O. clarissima (holotype) 6 O. clarior (holotype) 7 O. obliqua (holotype) 8 O. obliqua parva (holotype) 9 O. ocellata 10 O. abiyi (holotype) 11 O. emanai (holotype) 12 O. emanai lenzi (holotype) 13 O. pauperata (holotype) 14 O. balensis (holotype) 15 Rabomia subaurata 16 R. obscurior (holotype) 17 Morabia politzari (holotype) 18 M. brunnea (holotype). Scale bars: 1 cm.

Figures 28 - 36. Specimens of the genera Orbamia, Rabomia, and Morabia, ventral view. 28 Orbamia abiyi 29 O. emanai 30 O. emanai lenzi 31 O. pauperata 32 O. balensis 33 Rabomia subaurata 34 R. obscurior 35 Morabia politzari 36 M. brunnea. Scale bars: 1 cm.

Figures 46 - 54. Male genitalia of the genera Orbamia, Rabomia, and Morabia. 46 Orbamia abiyi 47 O. emanai 48 O. emanai lenzi 49 O. pauperata 50 O. balensis 51 Rabomia subaurata 52 R. obscurior 53 Morabia politzari 54 M. brunnea. Scale bar: 1 mm.

Figures 64 - 72. Aedeagus of male genitalia of the genera Orbamia, Rabomia, and Morabia. 64 Orbamia abiyi 65 O. emanai 66 O. emanai lenzi 67 O. pauperata 68 O. balensis 69 Rabomia subaurata 70 R. obscurior 71 Morabia politzari 72 M. brunnea. Scale bar: 1 mm.

Figures 73 - 84. Female genitalia of the genera Orbamia, Rabomia, and Morabia. 73 Orbamia octomaculata 74 O. becki 75 O. renimacula 76 O. clarissima 77 O. ocellata 78 O. abiyi 79 O. emanai 80 O. emanai lenzi 81 O. pauperata 82 Rabomia subaurata 83 R. obscurior 84 Morabia politzari. Scale bar: 1 mm.