Macrobathra micacea Li, 2023

Zhang, Di & Li, Houhun, 2023, Review of the genus Macrobathra Meyrick, 1883 (Lepidoptera: Cosmopterigidae) in China, Zootaxa 5330 (2), pp. 227-246 : 229-231

Macrobathra micacea Li , sp. nov.

( Figs 1 , 18 )

Type material. CHINA, Hainan: Holotype ♁, Nanxi, Mt. Diaoluo , 250 m, 22.IV.2008, leg. BB Hu & HY Bai, slide No. ZZW08167.

Paratypes: 1♁, Jianfengling, 940 m, 6.VI.2007, leg. ZW Zhang & WC Li, slide No. ZZW08870.

Diagnosis. The new species differs from its congeners in the forewing having a large black speckle and several short silvery white streaks.

Description. Adult ( Fig. 1 ). Wingspan 11.0 mm.

Head with frons dim yellow, vertex deep leaden with purple-blue metallic luster. Antenna dark brown except scape yellowish brown. Labial palpus with second palpomere dim yellow, third palpomere brown.

Thorax and tegula deep brown, with shining purple metallic luster. Forewing with shining metallic luster, basal 3/4 tawny, distal 1/4 dark brown mixed with purplish luster; silvery speckle at base between costal margin and fold; black patch tinged with purplish luster placed between costal margin and fold running from near base to basal 2/5, then extending obliquely downward, its anterior corner reaching distal 1/5 of discal cell, posterior corner reaching distal 1/3 of fold; curved short silvery streaks at costal 1/5, 1/2, 3/4 as well as at 1/3 and 2/3 of fold and around anterior corner of black patch; fringe dark brown. Hindwing and fringe deep brown. Foreleg with femur leaden, tibia tawny on inner surface and dark brown on outer surface, tarsus dark brown except first tarsomere pale yellow at base and apex; midleg with femur grayish yellow, tibia white at 1/3, 2/3 and apex, tarsus dark brown, except first tarsomere ringed with white at apex; hindleg with femur grayish yellow on inner surface and silvery on outer surface, tibia and tarsus sand beige on inner surface, dark brown on outer surface, except tibia ringed with white at 1/6, 1/2 and apex.

Male genitalia ( Fig. 18 ). Socius asymmetrical, bent outward before rounded apex: left brachium uniform to before rounded apex; right brachium longer, slightly broadened from middle to near apex. Valva rounded at apex, with a few setae, asymmetrical: left valva almost aequilate, rounded at apex, right valva with basal 2/3 broad, distal 1/3 digitate. Saccus 2.5 times length of left valva, almost evenly slender. Aedeagus stout, slightly cylindrical.

Female unknown.

Distribution. China (Hainan).

Etymology. The specific epithet of the new species is derived from the Latin micaceus, referring to the forewing with shining metallic luster.

Figures

FIGURES 1‒5. Adults of Macrobathra spp. 1. M. micacea sp. nov., holotype; 2. M. aequidistans sp. nov., holotype; 3. M. afflata sp. nov., holotype; 4. M. arneutis; 5. M. myrocoma. All males. Scales = 2.0 mm.

FIGURES 18‒23. Male genitalia of Macrobathra spp. 18. M. micacea sp. nov., holotype, slide No. ZZW08167; 19. M. aequidistans sp. nov., holotype, slide No. ZD21349; 20. M. afflata sp. nov., holotype, slide No. ZD21242; 21. M. arneutis, slide No. ZZW07325; 22. M. myrocoma, slide No. ZD21353; 23. M. nomaea, slide No. ZZW08898. Scales = 0.2 mm.