Review of the genus Argyresthia Hübner, [1825] (Lepidoptera: Yponomeutoidea: Argyresthiidae) from China, with descriptions of forty-three new species
Author
Liu, Tengteng
Author
Wang, Shuxia
Author
Li, Houhun
text
Zootaxa
2017
4292
1
1
135
journal article
32781
10.5281/zenodo.827746
248cfde9-84c8-4101-887c-08f27ad5afac
1175-5326
827746
48A417CD-CA76-4CA1-8E2C-93DE2E681CCC
42.
Argyresthia
(
Argyresthia
)
subzonata
,
sp. nov.
(
Figs. 52
,
120
,
176
,
232
,
278
)
Description.
Adult (
Fig. 52
) wingspan 15.5̄16.0 mm. Head yellowish white. Labial palpus yellowish white, mixed with fuscous laterally. Antenna with scape yellowish white, pecten yellowish fuscous; flagellum yellowish white, ringed with black. Foreleg with femur, tibia and tarsus blackish fuscous on inner surface, remainder yellowish white; midleg mostly yellowish white, femur gray on outer surface, tibia gray on distal part, second to fifth tarsomeres mostly yellowish fuscous except blackish fuscous distally; hindleg mostly yellowish white, tarsus blackish gray on each tarsomere distally. Thorax yellowish white, with two longitudinal black streaks laterally; tegula yellowish white. Forewing ratio 4.8; yellowish white; costa with about 10 black dots, black dot before middle largest; longitudinal blackish-gray band overlaid with yellow from near base of costa extending obliquely outwards to upper margin of cell, and from there to apex, distal half distinctly curved; dorsum with a large more or less broad U-shaped black pattern, starting from near base below fold, extending obliquely inward to basal 1/5 of wing on dorsum, continuing from basal 1/5 to 3/7 along dorsum, then obliquely outward to distal 1/5 of cell, intersecting preceeding longitudinal band; slender black dorsal band from middle of wing to tornus, dotted with black above, produced to a spot at tornus; cilia yellowish white on costa and around apex, gray on termen. Hindwing and cilia uniformly gray. Abdomen silvery gray dorsally, yellowish white ventrally.
Male genitalia
(
Figs. 120
,
176
,
232
): Tuba analis shorter than width of valva. Socius covered with 13̄14 scale-like setae, bearing two long setae posteriorly (
Fig. 232
). Gnathos inflated distally, with nine long thick setae apically. Valva elongate oval, widest at base, narrowed towards apex, rounded apically, dorsal margin straight; a clump of thick setae in disc near ventral margin, with sparser similar setae in distal area. Saccus half width of valva, triangular, truncate apically. Phallus arched in distal 7/11, 3.7 times as long as width of valva (
Fig. 176
). Second sternite with about 10 micro-setae in each row; eighth sternite Y-shaped. Coremata present.
Female genitalia
(
Fig. 278
): Ovipositor 2.5 times as long as eighth segment. Anterior apophysis 3/5 length of posterior apophysis, bifurcate at distal 2/5; branch bifurcate a second time, with dorsal branch extending to lamella postvaginalis, ventral branches fused, forming ventral margin of ostium bursae. Lamella postvaginalis nearly trapezoidal. Antrum funnel-shaped, 2/5 length of eighth segment. Ductus bursae densely spinulate near and before opening of ductus seminalis; ductus seminalis originating from middle of ductus bursae. Corpus bursae oval, with dense micro-denticles, sparser anteriorly; signum with band-shaped basal plate slightly narrowed basally, slender horns slightly curved inward, water caltrop-shaped, anterior margin convex medially.
Type
material.
CHINA
:
Holotype
, Ƌ,
Lulang Town
(
29.74°N
,
94.73°E
),
Linzhi County
,
Xizang
Autonomous Region,
3065 m
,
4.viii.2010
, leg.
Houhun Li
et al.
, slide no. LTT12338
.
Paratype
:
1♀
,
Dianchanggou
(
29.65°N
,
94.37°E
),
Bayi Town
,
Linzhi County
,
3470 m
,
6.viii.2010
, leg.
Houhun Li
et al.
, slide no. LTT12339
.
Distribution.
China
(
Xizang
).
Diagnosis.
This species can be distinguished from its congeners by the forewing having a longitudinal blackish-gray band overlaid with yellow near the costa and a more or less U-shaped black pattern arising from the dorsum.
Etymology.
The specific name is derived from the Latin
subzonatus
, meaning below the zone, referring to the curved longitudinal band of the forewing.