Bharetta hanne Saldaitis, Ihle, Müller & Prozorov, 2025

Bharetta hanne Saldaitis, Ihle, Müller & Prozorov , sp. nov.

https://zoobank.org/ urn:lsid:zoobank.org:act:21157ADC-02C4-474F-8BF6-D2CDCA40DF0D

( Figs 9–12 View FIGURES 1–13 , 23–24 View FIGURES 20–24 )

Type material. Holotype. [ VIETNAM] ♂, “ VIETNAM (N) / Mts Fan-si-pan, N-side / Chapa, 22°17’N, 103°44’E / 1600m, 20-30. XI. 1995 / leg. Siniaev & loc. coll.,” GS 1317 ( CGM) GoogleMaps . Paratypes. [ VIETNAM] (3♂, 1♀) : ♂, same data as HT ( CGM) ; ♂, “N. VIETNAM / Mt. Fan-si-pan N-seite / Cha-pa (= Sapa ), 1600m / 22.17’N 103.44’E / prim. Urwald 25.–30.iii.1995 / leg. Schintlmeister & Sinjaev,” GS 3999 ( CGM) ; ♂, ♀, “N. VIETNAM / Ta Phin, Sapa, / Prov. Lao Cai / H= 1460-2318 m, / April 2018 / N 22 23.196’ / E 103 48.701’ leg. / Hoa Binh Nguyen / coll. Siegfried Ihle ” ( CSI) .

Description. Male ( Figs 9–11 View FIGURES 1–13 ). Palpi brown to dark brown; flagellum brown. Head and thorax brown with dark brown longitudinal medial line. Abdomen dark brown. Forewing. Forewing length: 15.5–16.5 mm. Somewhat triangular, wavy, with prominences at R 3, M 1 and CuA 2 —1A+2A and semioval concavities in-between. Wing orangish brown in medioanal area, gets darker towards costa and even more so towards outer margin; antemedial line poorly pronounced, c-shaped, dark brown; medial dot slightly blurred, dark brown; postmedial line sinusoid, slightly blurred, dark brown. Fringe dark brown. Hindwing. Somewhat trapezoid. Almost evenly brown with orangish costal area. Fringe dark brown. Genitalia ( Figs 23–24 View FIGURES 20–24 ). Tegumen reduced to membrane, laterocaudally bears pair of knob-like socii covered with setae. Vinculum ventrocaudally develops somewhat triangular, slightly more sclerotized medially and mediodistally. Cucullus claw-like with widened base and blunt apex, loosely covered with setae. Sacculus somewhat claw-like with long blunt apex, distal half loosely covered with setae. Juxta somewhat triangular, basally connected via membrane with sacculi and vinculum, dorsally fused with phallus. Phallus cylinder-shaped with wide distal opening of vesica and apical claw-like process about as long as phallus. Vesica somewhat oval with conical ventral diverticulum bearing apically one elongated thorn-like cornuti and mediocaudally slender vesica ejaculatorius. Female ( Fig. 12 View FIGURES 1–13 ). Palpi dark brown. Head and thorax pinkish straw with transversal brown medial line. Abdomen pinkish straw with brown dorsal area in basal half. Forewing. Forewing length: 26 mm. Somewhat triangular, wavy, with prominences at R 3, M 1 and CuA 2 and semioval concavities in-between. Wing pinkish with brown speckles, gets brown along outer margin; medial spot slightly blurred, oval, dark brown; postmedial line slightly blurred and wavy, orangish brown, thinned towards apex; outer fascia consists of dark brown blurred spots of varying sizes. Fringe dark brown. Hindwing. Somewhat oval with wavy outer margin. Brown, gets darker towards outer margin; medial line a blurred orangish brown streak. Fringe dark brown. Genitalia not studied.

Diagnosis. Bharetta hanne sp. nov. is externally similar with Bh. owadai and Bh. sarah sp. nov. but differs from:

1) Bh. owadai with overall larger clasping apparatus and phallus, longer sacculus with longer apex (compare Figs 23–24 View FIGURES 20–24 and 15–17 View FIGURES 15–19 ); allopatric distribution ( Fig. 25 View FIGURES 25–26 );

2) Bh. sarah sp. nov. with overall larger clasping apparatus and phallus, longer sacculus with longer apex (compare Figs 23–24 and 20–22 View FIGURES 20–24 ).

Distribution ( Fig. 26 View FIGURES 25–26 ). Northern Indochina subtropical forests in Vietnam (see Olson, 2001; Dinerstein et al., 2017).

Biology. Adults were collected in March, April, and November from altitudes of 1460–2318 m.

Etymology. The species is named after Mrs. Hanne Dossmann, the widow of Mr. Josef Mooser. She accompanied her late husband on numerous collection trips and helped him at home to process the collected specimens and maintain his collection.