Antiochtha erromera, Wang, 2022

Shuai YU & Shuxia WANG, 2022, Taxonomy of the genus Antiochtha Meyrick (Lepidoptera, Lecithoceridae) in China, with descriptions of three new species, European Journal of Taxonomy 826, pp. 163-175 : 164-167

Antiochtha erromera sp. nov.

urn:lsid:zoobank.org:act:11CB74DC-0420-45D6-8EA8-6967A5F9DA03

Figs 1A , 2A , 3A , 4A

Diagnosis

The new species is similar to A. hainanensis sp. nov. in appearance and wing venation. It can be distinguished in the male genitalia by the valva extending outward distally, the juxta with an imbricated median process shorter than the uncus on the posterior margin, and the absence of the lamella antevaginalis in the female genitalia; in A. hainanensis , the valva is strongly upturned distally, the juxta has an elongate median process on the posterior margin approximately as long as the uncus, and the female genitalia has a banded lamella antevaginalis.

Etymology

The specific epithet is derived from the Latin erromerus, referring to the stout aedeagus of the male genitalia.

Type material

Holotype CHINA – Hainan Province • ♂; Ledong County, Jianfengling, Mingfenggu ; 18°40′ N, 108°52′ E; 954 m a.s.l.; 8 Aug. 2017; X. Bai, P. Liu and S. Yu leg.; slide No. YS20048; NKU.

Paratypes (4 ♀♀) CHINA – Hainan Province • 1 ♀; same collection data as for holotype; slide No. YS20277; NKU • 2 ♀♀; Ledong County, Jianfengling, Tianchi ; 787 m a.s.l.; 8 Mar. 2015; Q.Y. Wang, S.R. Li and S.N. Zhao leg.; slide No. YS20065 ; NKU • 1 ♀; Wuzhishan City, Shuimanxiang ; 766 m a.s.l.; 27 Feb. 2016; Q.Y. Wang, S.R. Li and S.N. Zhao leg.; NKU .

Description

ADULT ( Figs 1A , 2A ). Wingspan 11.0‒13.0 mm. Head orange white, mixed with yellowish brown on occiput. Antenna orange white. Second palpomere of labial palpus orange white mixed with dark brown on inner surface, dark brown except orange white at apex on outer surface, roughly scaled ventrally; third palpomere orange white. Thorax orange white; tegula dark brown. Forewing with costal margin nearly straight, apex roundly produced, termen shallowly concave; ground colour dark brown, mixed with orange-white scales, orange white mixed with brown ventrobasally; antemedian fascia orange white, curved in S shape from about basal 2/5 of costal margin to basal 2/5 of dorsum, edged with black scales on its inner margin; discocellular stigma small, elliptical, black, encircled by orange white; costal spot small, wedge-shaped, orange white, from distal 1/5 extending to M 1; dorsal spot smaller, orange white, from distal 1/5 extending to M 2+3; fringe greyish black, basal line orange white; M 1 stalked with R 3+4+5, M 2+3 and CuA 1+2 stalked, CuA 1 and CuA 2 coincident. Hindwing and fringe brown; fringe with orange-white basal and median lines. Legs orange white, mixed with dark-brown scales.

MALE GENITALIA ( Fig. 3A ). Uncus wide at base, narrowed to beyond middle, thereafter slightly widened to rounded apex, sparsely setose laterodistally. Gnathos with basal plate produced to a digitate process posteriorly; median process wide at base, narrowed to about basal ¼, thereafter uniform to distal ⅓, distal ⅓ slender, hooked, pointed at apex. Valva extending outward, wide at base, narrowed to narrowly rounded apex, densely setose in distal ¼; costa shallowly concave; sacculus banded, shorter than half length of valva, slightly concave inward ventrally. Vinculum produced anteriorly, forming a triangular saccus. Juxta narrowed medially, broadly rounded on anterior margin; posterior margin with an imbricate process at middle bearing apical spine; posterolateral lobe triangular; lateral lobe digitate, setose distally, arising from below posterolateral lobe, nearly as long as posterolateral lobe. Aedeagus stout, shorter than valva, straight, with semiovate preapical lobe ventrally, with dense granules in vesica; cornuti consisting of two small plates, placed distally.

FEMALE GENITALIA ( Fig. 4A ). Eighth abdominal sternite represented by two lateral plates bearing sparse, strong setae. Apophyses posteriores about 1.5 times as long as apophyses anteriores. Ostium bursae large, rounded. Antrum membranous. Ductus bursae approximately three times as long as corpus bursae; ductus seminalis arising from between antrum and ductus bursae, nearly as wide as ductus bursae, helical. Corpus bursae small, elliptical; signum situated at middle, elliptical, serrate along margins, with narrow, horizontal central groove.

Distribution

China (Hainan Province).

Figures

Fig. 1.AdultsofAntiochtha spp. (dorsal view).A. A. erromerasp.nov., holotype(NKU).B. A. hainanensis sp. nov., paratype (NKU). C. A. jianfengensis Zhu & Li, 2009, from Hainan, China. D. A. jianfengensis, holotype of A. rotunda syn. nov. from Guizhou, China. E. A. miniscula sp. nov., holotype. F. A. semialis Park, 2002. Scale bars = 2.0 mm.

Fig. 2. Wing venations of Antiochtha spp., all paratypes. A. A. erromera sp. nov., slide No. WYS20277. B. A. hainanensis sp. nov., slide No. WYS20058. C. A. miniscula sp. nov., slide No. WYS20261. Scale bars = 1.0 mm.

Fig. 3. Male genitalia of Antiochtha spp. A. A. erromera sp. nov., holotype, slide No. YS20048. B. A. hainanensis sp. nov., paratype, slide No. YS20058. C. A. jianfengensis Zhu & Li, 2009, holotype, slide No. ZYM06433. D. A. jianfengensis, holotype of A. rotunda syn. nov., slide No. ZYM06040. E. A. miniscula sp. nov., holotype, slide No. YS20276. F. A. semialis, slide No. YS20098. Scale bars = 0.5 mm.

Fig. 4. Female genitalia of Antiochtha spp. A. A. erromera sp. nov., paratype, slide No. YS20065. B. A. hainanensis sp. nov., paratype, slide No. YS20228. C. A. jianfengensis, slide No. YS20074. D. A. semialis Park, 2002, slide No. YS20275. Scale bars = 0.5 mm