Review of the genus Pityocona Meyrick, 1918 (Lepidoptera: Gelechiidae) in China, with descriptions of five new species
Author
Chen, Mengting
Author
Li, Houhun
text
Zootaxa
2017
4263
2
347
357
journal article
33084
10.11646/zootaxa.4263.2.8
0d57ca15-640d-4d6f-82ef-b1429e8b5d30
1175-5326
573167
6DB294AE-53F4-4559-B95A-FD1D2758CF9D
Pityocona mastoidea
Li
,
sp. nov.
Figs 2
e, 3e
Type
material
.
CHINA
:
Holotype
♂
,
Tianchi
,
Jianfengling
(
18.73°N
,
108.87°E
),
Hainan
,
787 m
,
1.IV.2008
, coll.
Bingbing Hu
and
Haiyan Bai
, slide
No.
CMT16070
.
Paratype
:
1♂
,
Mengyuan Town
,
Mengla County
,
Xishuagnbanna
(
21.42°N
,
101.23°E
),
Yunnan
,
640 m
,
13.VIII.2010
, coll.
Yinghui Sun
and
Lixia Li
, slide
No.
CMT16117
.
Diagnosis
. This species is similar to
P. probleta
Bradley,
1961
in the male genitalia by having a broad and short uncus and the valva with a short digitate process at middle on the ventral margin. It can be distinguished from the latter by the tongue-shaped gnathos, which is elongate narrow and slightly curved in
P. probleta
(
Bradley, 1961: 129. Pl. 5: Figs 7, 8
).
Description.
Adult (
Fig. 2
e) with wingspan 11.5–12.0 mm. Head yellowish white, with sparse pale yellow scales above compound eyes. Antenna with scape yellowish brown; flagellum yellowish brown and blackish brown alternately. Labial palpus with second segment yellowish white, densely covered with greyish brown scales on both outer and ventral surfaces; third segment with basal 3/4 yellowish white, mottled greyish brown scales from basal 1/4 to 2/5, blackish brown in distal 1/4 except apex yellowish white. Thorax and tegula yellowish brown. Forewing yellowish brown, mixed with brown scales; four evenly spaced sub-ovate blackish spots placed near base of Sc vein, at basal 1/3 of cell on upper margin, at both middle and end of cell respectively, joined by arched longitudinal yellowish white band; fold with longitudinal yellowish white stripe, mottled blackish scales distally, with black spot placed at basal 1/3 and distal 1/3 respectively; narrow straight yellowish brown band placed centrally between outer margin of cell and apex of wing, accompanied by pale yellow band along its anterior and posterior edges; distal part of costal margin and termen yellow and brown alternately; fringe pale grey. Hindwing protruded at apex, termen wavy, distinctly indent; grey brown; fringe two to three times of wing width. Legs dominantly yellowish white, coxae and femora mixed with greyish brown on ventral surface; foreleg with tibia and tarsus blackish brown on outer surface; midleg with tibia and tarsus mottled greyish brown scales on outer surface, tibia with yellowish white strips basally and medially, tarsus with yellowish white ring at apex of each tarsomere; hindleg with tibia bearing long yellowish brown hairs, tarsus blackish brown at base of each tarsomere on outer surface.
Male genitalia (
Fig. 3
e): Uncus broad and short, bifurcate from middle in narrow V shape; lateral lobes broad and short, sub-rectangular, each with slight sinuation on posterior margin, folded laterally, with clustered setae. Gnathos sclerotized heavily, tongue-shaped, narrowed at base, rounded at apex; culcitula cordiform. Tegumen divided from middle; lateral branch broad, blunt anteriorly. Valva exceeding top of uncus apically, basal 1/3 wide, distal 2/3 uniformly narrower, constricted and curved at basal 3/5, with sparse setae; ventral margin with a short digitate process at middle, bearing a row of dense long setae. Vinculum with a mastoid process near middle at each lateral side. Aedeagus with basal 1/3 expanded, distal 2/3 of equal width, apex obliquely truncate.
Female unknown.
Distribution
.
China
(
Hainan
,
Yunnan
).
Etymology
. The specific name is derived from the Latin
mastoideus
, referring to the vinculum with a mastoid process near middle at each lateral side.