Meleonoma magnidentata Wang, 2020

Zhu, Xiaoju, Cai, Bo & Wang, Shuxia, 2020, Genus Meleonoma Meyrick, 1914 (Lepidoptera, Autostichidae) from Hainan Island, China, with descriptions of sixteen new species, ZooKeys 975, pp. 125-157 : 125

publication ID

https://dx.doi.org/10.3897/zookeys.975.53289

publication LSID

lsid:zoobank.org:pub:FBAB457B-762C-41DE-9EFA-2443321C1193

persistent identifier

https://treatment.plazi.org/id/489650A4-EC5B-49EE-A629-8F16824C32A0

taxon LSID

lsid:zoobank.org:act:489650A4-EC5B-49EE-A629-8F16824C32A0

treatment provided by

ZooKeys by Pensoft

scientific name

Meleonoma magnidentata Wang
status

sp. nov.

Meleonoma magnidentata Wang sp. nov. Figs 7 View Figures 4–11 , 23 View Figures 20–27 , 37 View Figures 36–41

Type material.

China, Hainan: Holotype ♂, Tianchi (18.73N, 108.87E), Jianfengling, 787 m, 10.III.2016, leg. QY Wang et al., slide No. LJ17530. Paratypes (4♂3♀): 1♂, Forest Park, Mt. Limu, 607 m, 15.V.2015, leg. PX Cong et al.; 1♂1♀, Mt. Wuzhi, 738 m, X.29-XI.4.2016, leg. X Bai et al., slide No. ZXJ18261♀; 1♂, Mt. Wuzhi, 732 m, 2.VIII.2017, leg. X Bai et al.; 1♂1♀, Mt. Diaoluo, 940 m, 31.V-2.VI.2007, leg. ZW Zhang & WC Li; 1♀, Mt. Diaoluo, 922 m, 24.V.2015, leg. PX Cong et al.

Diagnosis.

The new species can be distinguished from its congeners by the valva with several large, strong denticles different in number and size on the ventral margin, and by the lamella antevaginalis being broad rectangular ventrally, narrowly banded dorsally, and joined laterally.

Description.

Adult (Fig. 7 View Figures 4–11 ). Wingspan 18.0-18.5 mm. Head blackish brown, mixed with yellow. Labial palpus yellow; second segment with blackish brown scales on outer surface, with a blackish brown ring at apex; third segment slightly shorter than second segment, mixed with sparse blackish brown scales. Antenna with scape blackish brown basally, yellow distally; flagellum blackish brown. Thorax and tegula blackish brown. Forewing blackish brown; costal margin with two yellow spots: antemedian spot rectangular, from before basal 1/3 oblique outwards, crossing anterior margin of cell posteriorly, distal spot sub-triangular, at ca. distal 1/4; cell with a small yellow spot near outer margin; plical spot yellow, very small; fringe yellow, except greyish black along distal part of costal margin and around tornus. Hindwing and fringe yellowish grey. Legs yellow, with exception on ventral surface: foreleg blackish brown, femur scattered with yellow scales apically, tarsus yellow at apices of basal two tarsomeres; mid- and hindlegs blackish brown, tarsi yellow at apex of each tarsomere; all tibiae yellow apically.

Male genitalia (Fig. 23 View Figures 20–27 ). Uncus clavate, uniformly wide from near base to before pointed apex. Gnathos sclerotized laterally, exceeding anterior margin of tegumen, membranous anteriorly. Tegumen V-shaped, uniformly wide, with sclerotized edges. Valva narrow at base, widened from base to basal 1/3, thereafter narrowed to rounded apex, setose; ventral margin projected medially, with several large, strong denticles along basal 2/3, different in number and size on left and right valvae; costa lineate, reaching before apex of valva, with sparse setae basally; transtilla short and wide, narrowed to apex, with long setae at base. Sacculus wide at base, narrowed from base to before apex; apex triangularly produced, setose; ventral margin sclerotized and folded. Saccus ca. 1/2 length of uncus, wide at base, narrowed to rounded apex. Juxta U-shaped; lateral lobe clubbed, slightly enlarged distally. Phallus stout, approximately as long as valva, slightly widened medially, with a spine before apex and numerous teeth sparsely grouped below it.

Female genitalia (Fig. 37 View Figures 36–41 ). Papillae anales sub-rectangular, setose. Apophyses posteriores ca. 2.5 × length of apophyses anteriores. Eighth sternal plate with posterior margin rounded, slightly concave at middle, lined with sparse long setae. Lamella antevaginalis ventrally broad rectangular, concave medially on anterior margin, narrowly banded dorsally, joined laterally. Ductus bursae with posterior 3/4 membranous, uniformly wide, anterior 1/4 sclerotized; ductus seminalis arising from anterior 1/3. Corpus bursae as long as ductus bursae, widened anteriorly; signum absent.

Distribution.

Hainan (Jianfengling, Mt. Limu, Mt. Diaoluo, Mt. Wuzhi).

Etymology.

The specific epithet is derived from the Latin magni - (adj., large) and dentatus (adj., dentate), referring to the large denticles on the ventral margin of the valva.