Orbamia marginata 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 marginata Hausmann & Tujuba sp. nov. Figures 2 , 20 , 38 , 56

Examined material.

Holotype: ♂, Tanzania, Bukwa region, 14 km W Namanyere, 1290 m, 07°27.28'S, 030°54.49'E, 14.xi.2005, leg. Ph. Darge, coll. ZSM (ZSM G 20909).

Paratypes: 2♂, Tanzania, Rukwa region, 14 km W Namanyere, 1290 m, 07°27.28'S, 030°54.49'E, 14.xi.2005, leg. Ph. Darge, coll. ZSM (ZSM G 20941); 1♂, Tanzania, Rukwa region, Luafi Game Reserve (W. Namanyere), 1260 m, 07°26.98'S, 030°54.24'E, 31.i.2008, leg. Ph. Darge; 1♂, Tanzanie, Iringa region, Iyayi savanna, 1400 m, 08°51.47'S, 034°31.29'E, 14.iv.2007, Ph. Darge; 1♂, Tanzania, Morogoro region, Udzungwa N.P. camp site, 3315 m, 07°50.95'S, 036°50.95'E, 26.xi.2005, leg. Ph. Darge (all ZSM).

Etymology.

The name refers to the uninterrupted black line at the hindwing margin (Lat. margo/marginis = edge, border).

Differential features

(COI sequences, photographs of adults and their genitalia see https://dx.doi.org/10.5883/DS-ORBAMIA): Adult: Forewing length: 11.5-12.5 mm. Upper side of wings: Ground colour dirty grey with brown suffusion. Underside: Ground colour whitish beige with some dark suffusion, terminal fascia conspicuous, uninterrupted on all wings. Male genitalia: Uncus long, triangular, valva slightly bent, dorsal process with small spinule at tip, cornutus short and stout (1.6 mm). Female genitalia unknown.

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 19 - 27. Specimens of the genus Orbamia, ventral view. 19 Orbamia octomaculata 20 O. marginata 21 O. becki 22 O. renimacula 23 O. clarissima 24 O. clarior 25 O. obliqua 26 O. obliqua parva 27 O. ocellata. Scale bars: 1 cm.

Figures 37 - 45. Male genitalia of the genus Orbamia. 37 Orbamia octomaculata 38 O. marginata 39 O. becki 40 O. renimacula 41 O. clarissima 42 O. clarior 43 O. obliqua 44 O. obliqua parva 45 O. ocellata. Scale bar: 1 mm.

Figures 55 - 63. Aedeagus of male genitalia of the genus Orbamia. 55 Orbamia octomaculata 56 O. marginata 57 O. becki 58 O. renimacula 59 O. clarissima 60 O. clarior 61 O. obliqua 62 O. obliqua parva 63 O. ocellata. Scale bar: 1 mm.