Orbamia balensis 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

Orbamia balensis Hausmann & Tujuba sp. nov. Figures 14 , 32 , 50 , 68

Examined material.

Holotype: ♂, Ethiopia Oromia, Bale 8 km S. Dolo Mena, 1200 m, IV.2017, leg. R. Beck, coll. ZSM (ZSM G 20914).

Paratypes: 2♂2♀, Ethiopia Oromia, Bale 8 km S. Dolo Mena, 1200 m, IV.2017, leg. R. Beck (ZSM G 20948/♀); 1♀, Äthiopien, prov. Oromia, Dolo Mena, 30 km, S., 1080 m (savanna) 06°13.53'N, 39°46.82'E, 14.IV.2019, Robert Beck (ZSM).

Etymology.

The name refers to the type locality in the Bale mountains.

Differential features

(COI sequences, photographs of adults and their genitalia see https://dx.doi.org/10.5883/DS-ORBAMIA): Adult: Forewing length: 11-13 mm. Upperside of wings: Ground colour comparatively dark, with much dark brown suffusion, pattern not well contrasted. Underside: Ground colour beige, with pale orange tinge on veins, apical spots on forewing conspicuous, sharply bordered, on hindwing slightly darker at apex only, remnants of dotted terminal fascia on all wings. Male genitalia: Uncus stout, very long, saccus broad, valva straight, 'very broad at base, narrow at tip, dorsal process stoutly sclerotised, with conspicuous, stout hook at tip, cornutus narrow and short (1.1 mm). Female genitalia: Lamella ante- and post-vaginalis fused, heart-shaped, short (length 0.6 mm), signum small, transverse ridge straight (0.2 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.