Casmara acantha S. Wang

Wang, Shuxia, Zhang, Li & Wang, Jingjing, 2012, Four new species of the genus Casmara Walker, 1863 (Lepidoptera: Oecophoridae) from China, Zootaxa 3239, pp. 58-63 : 61

publication ID	https://doi.org/ 10.5281/zenodo.280453
DOI	https://doi.org/10.5281/zenodo.6495812
persistent identifier	https://treatment.plazi.org/id/03C8879C-FFE6-7233-ADBD-FE47FD06F8EE
treatment provided by	Plazi
scientific name	Casmara acantha S. Wang
status	sp. nov.

Treatment

Casmara acantha S. Wang , sp. nov.

( Figs. 2 View FIGURES 1 – 4 , 6 View FIGURES 5 – 8 )

Type material. Holotype 3, CHINA: Mt. Dadong, Lianzhou (24°29ʹ N, 112°14ʹ E), Guangdong Province, 650 m, 21.vi.2004, coll. Dandan Zhang, genitalia slide No. ZL08006 ( NKUM). Paratypes: 1 3, same data as holotype except dated 25.vi.2004, genitalia slide No. ZL08025 ( NKUM); 1 3, Lintunyuan, Taiwan, 1800 m, 24.vi.1995, coll. Xiaoyue Wang, genitalia slide No. WJJ10115 ( IZCAS); 1 3, Mt. Miaoer, Guilin, Guangxi Zhuang Autonomous Region, 9.vii.1985, coll. Shimei Song, genitalia slide No. WJJ10111 ( IZCAS).

Diagnosis. This species is similar in appearance to C. epicompsa Meyrick, 1922 ( Clarke 1963: 134) , but the forewing is darker, the sacculus is not narrowly rounded dorsobasally, and the phallus has an acantha-like cornutus.

Description. Adult ( Fig. 2 View FIGURES 1 – 4 ). Wingspan 29.5–32.5 mm. Head blackish brown, with mixture of pale grey scales laterally and posteriorly. Antenna with scape blackish brown, pecten greyish yellow, flagellum yellowish brown with white dorsal annulation. Labial palpus brown mixed with pale scales; second segment thickened with rough scales; third segment slender, 1/2 length of second, with a broad dark brown ring near apex. Thorax and tegula black except greyish white on their posterior margins. Forewing ground color deep brown, scattered with white scales distally; costal margin with basal 1/3 blackish brown, distal 2/3 brownish yellow; yellowish-white subcostal streak extending from basal 1/4 of wing to beyond middle, a rufous subcostal stripe of slightly raised scales near distal part of outer margin; creamy yellow basal patch placed along fold, with two dark rufous tufts of raised scales on distal margin: one at basal 1/4 of cell, one below basal 1/3 of fold; small dark rufous subcostal tuft at basal 1/5, indistinct; discal and plical stigmata of raised blackish-brown scales, discal stigma somewhat rounded, surrounded by white stripe except on posterior edge; plical stigma smaller, just below discal one; large blackish-brown spot situated beside discal stigma, edged with white streak along its outer margin; termen blackish brown, with white scales along inner margin; fringe fuscous, interspersed with fulvous spots near base, mixed with white at tornus. Hindwing blackish brown, costal area pale yellowish brown; fringe with basal 1/3 blackish brown, distal 2/3 greyish brown. Abdomen blackish brown, edged with orange on posterior margin, segments I and II paler; anal tuft loose, brown mixed with yellowish-white. Fore- and mid-legs blackish brown, each tarsomere distally annulated with pale brown; hind-leg yellowish brown, tarsus annulated with creamy white.

Male genitalia ( Fig. 6 View FIGURES 5 – 8 ). Uncus about 3/4 length of gnathos. Gnathos beak-shaped distally, acute at apex. Valva with costa gently concave. Cucullus broad basally, tapering to narrowly rounded apex, ventral margin convex; harpe short thumblike, apex rounded. Sacculus with basal 3/5 strongly broadened, dorsal margin strongly convex; apical lobe rounded, margined with long hard setae. Juxta about 1/4 length of phallus. Phallus strongly curved, basal 3/5 tubular, distal 2/5 gradually narrowed towards apex; cornutus strongly sclerotized, developed into a stout acantha , about 1/5 length of phallus, apex curved and acute, with a triangular process near base.

Female unknown.

Biology. Adults were active in June. Immature stages are unknown.

Distribution. China (Guangdong, Guangxi, Taiwan).

Etymology. The specific name is derived from the Latin acanthus = acantha , in reference to the cornutus developed into a stout spine in the male genitalia.