Ethmia angensteini Mey & Keller, 2023

Ethmia angensteini Mey & Keller sp. nov. ( Figs 1–6 View Figure 1 View Figure 2 View Figure 3 View Figure 4 View Figure 5 View Figure 6 )

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Holotype ♀, Ethiopia, Äthiopien/ Addis-Abeba, 20.ix.1981 leg. P. Angenstein (MfN)

Paratypes: 11 ♂ 18 ♀, Ethiopia, Harena Forest , 11.x.2013, 2307 m, 6°12.983′N; 39°43.570′E, leg. D. Wiersbowsky GoogleMaps , genitalia slide Mey 02/14 (MfN, coll. Shovkoon) ; 2 ♂ 1 ♀, same locality and data, 06°42′N; 39°43′E, leg. D. Stadie (MfN) GoogleMaps ; 2 ♂ 1 ♀ South Ethiopia, Goba, 10–11.iv.2018, 3080m, leg. R. Keller (coll. Keller) ; 2 ♂ 2 ♀, Ethiopia, Bale Mountain Lodge, 11–12.iv.2018, 3080m, leg. R. Keller (coll. R. Keller) ; 1 ♀, same locality and data, leg. Moosburg, Beck, Dietl, Zuleger, Abdurahin, Merese , genitalia slide Mey 23/20 (MfN) ; 2 ♂, same locality, 11– 12.iv.2018, 2240 m, leg. Moosburg, Beck, Dietl, Zuleger, Abdurahin, Merese , genitalia slide Mey 25/20 (MfN) .

Description. Adult female ( Fig. 1 View Figure 1 ). Length of forewing 12– 14 mm, wingspan 25–30 mm. Head white-grey, labial palpi ascending, white-grey, second and third segments with two black rings, terminal segment acute; antenna black. Proboscis long, basally scaled, apically lined laterally with small, elongate papillae. Thorax grey-white, patagiae and tegulae with black spots basally; mesonotum with five black spots. Legs white, tibiae and tarsi with black rings. Forewings white-grey, with characteristic black pattern ( Fig. 1 View Figure 1 ), hindwings grey-brown, underside of wings uniformly dark brown, frenular bristles black. Male with corresponding wing pattern, hindwing with long, brown costal brush.

Male genitalia ( Figs 2 View Figure 2 , 3a View Figure 3 , 4–5 View Figure 4 View Figure 5 ): Tegumen straight, elongate. Uncus broad basally, bilobed apically. Caudal part of gnathos with thorns, oral part with two lobes equipped with long, apical spines and short basal denticules. Vinculum short, as a thin half-ring. Labis short, triangular. Valva elongate, basal process on inner side thin, costa broad, cucullus claviform. Juxta short, anellus sclerotised, phallic apparatus with spiral base, manica bilobed at apex enclosing tubular phallic apparatus, vesica with bundle of spine-like cornuti.

Female genitalia ( Fig. 6 View Figure 6 ): Papillae anales long, fused basally, apophyses posteriors as long as papillae anales. Segment VIII without apophyses, sterigma with rectangular lamella antevaginalis and pair of small sclerites as lamella postvaginalis. Ostium bursae membranous, antrum weakly sclerotised. Ductus bursae long, lamellate, somewhat coiled. Bursa copulatrix spherical and with appendix bursae. Signum large, with large and small teeth on inner side.

characters to the preceding species are depicted in Figs 3 View Figure 3 , 6 View Figure 6 , 7–9 View Figure 7 View Figure 8 View Figure 9 .

Etymology: Named in memory of Dr. Peter Angenstein, the first collector of this species. He was a German entomologist (01.iv.1938 – 23.9.2000) from Magdeburg, who worked in Ethiopia as phytopathologist in a cooperation project between Ethiopia and the DDR. He collected Lepidoptera in his spare time, mainly around Addis Abeba from1980–1982. His collection, including Ethiopian material, is deposited in the MfN, Berlin.

Remarks: According to external characters the new species is very similar to E. iphicrates Meyrick, 1922 . The new species differs by the grey ground colour of the forewings in contrast to the white ground colour of E. iphicrates ( Fig.7 View Figure 7 ). In the male genitalia both species differ in the structure of the gnathos and in the apex of the manica ( Figs 8–9 View Figure 8 View Figure 9 ). In the female genitalia, the new species has a distinct lamella antevaginalis, whereas in E. iphicrates the ostium is surrounded by the flat venter of segment VIII ( Fig. 6d View Figure 6 ). In Ethiopia both species occur sympatrically.