Stueningeria loeffleri, Yakovlev & Zolotuhin, 2021

Yakovlev, Roman V. & Zolotuhin, Vadim V., 2021, Revision of the family Metarbelidae (Lepidoptera) of the Oriental Region. III. Genus Stueningeria Lehmann, 2019, Ecologica Montenegrina 43, pp. 16-29 : 23-24

Stueningeria loeffleri sp. nov.

https://zoobank.org/ urn:lsid:zoobank.org:act:F7177DAD-E401-489F-BFBF-53F7DB9B1F19

Figs 10 , 20

Material examined. Holotype. Male , Thailand, Sakhon Nakhon Prov., Phu Pan NP, 400 m, 22−27.iv.2004, ex coll. S. Loeffler ( MWM; GenPr Heterocera – 32.908).

Description. Male. Length of fore wing 14 mm. Antenna short, bipectinate, setae in medium third of antenna twice longer than antenna rod diameter, thorax and abdomen from above covered with long brown scales (except for medium third of abdomen, covered with light-grey scales), abdomen apically with long modified scales. Fore wing creamy with mottled pattern of brown spots of various shape and size throughout all wing area, thin creamy lines between spots; dark-brown stroke in discal cell at base, big dark-brown spot at top of discal cell; narrow crescent portion of grey androconium scales cubitally (from base to middle of wing in length); small androconium portion of the same scales in radial area; marginal area and fringe mottled (with alternating brown and creamy spots). Hind wing light-brown without pattern, anal edge creamy, without pattern, fringe mottled (with alternating brown and creamy spots).

Male genitalia ( Fig. 20 ). Uncus wide, with extended semicircular bifurcation apically, apical halves of uncus diverging at a right angle, wide, short, halves of uncus apically almost smooth; scaphium and subscaphium fused into short wide spindle-like tube; gnathos arms short, lamellar; gnathos lamellar, with long thin lateral processes; valve short with equally rounded edges; saccular edge strongly sclerotized in basal half, tubulate, with short pyramidal harpe directed dorsally; juxta lamellar, robust; saccus almost reduced; phallus 2.5 times shorter than valve, thick, in distal third with robust spiky cornutus, directed proximally, and small serrations on abdominal surface.

Female unknown. Diagnosis. The new species is most close to S. ihlei sp. nov., S. csovarii sp. nov. and S. pinratanai sp. nov., from which it differs in the lighter color, the short androconium portion in the cubital area and the serrations on the abdominal surface of the phallus.

Distribution. Thailand (Sakhon Nakhon Province).

Etymology. The new species is named after the entomologist Swen Löffler – the collector of the new species.

Figures

Figures 1−15. Adult specimens of Stueningeria: 1. S. nepalensis, male, Nepal, Annapura Himal (MWM); 2. S. nepalensis, male, Nepal, Annapura Himal (MWM); 3. S. nepalensis, male, India, Kumaon-Himalaya (MWM); 4. S. campbelli, female, holotype (NHMUK); 5. S. phaga, female, holotype (NHMUK); 6. S. phaga, male, India, Assam (NHMUK, individual number NHMUK: 012832501); 7. S. htetae, male, holotype (MWM); 8. S. csovarii, male, holotype (MWM); 9. S. csovarii, female, paratype (MWM); 10. S. loeffleri, male, holotype (MWM); 11. S. ihlei, male, holotype (ZISP); 12. S. murzini, male, holotype (MWM); 13. S. murzini, female, paratype (MWM); 14. S. pinratanai, male, holotype (MWM); 15. S. pinratanai, female, paratype (MWM).

Figures 20−23. Male genitalia of Stueningeria: 20. S. loeffleri, holotype (GenPr MWM: 32.908); 21. S. ihlei, holotype (slyde RYB 2017/5); 22. S. murzini, holotype (GenPr MWM: 28.018); 23. S. pinratanai, holotype (GenPr MWM: 32.906).