Two new species of Bucculatrix Zeller (Lepidoptera: Bucculatricidae) from China
Author
Liao, Cheng-Qing
Author
Yagi, Sadahisa
Author
Kobayashi, Shigeki
Author
Huang, Guo-Hua
text
Zootaxa
2019
2019-07-01
4624
3
322
336
journal article
26343
10.11646/zootaxa.4624.3.2
2ec81c3c-e799-4c40-87ae-e62e7d91e292
1175-5326
3264532
4FECFF70-4F8F-4C81-93CE-A09994A736AF
Bucculatrix yingjingensis
Liao, Yagi & Huang
,
sp. nov.
Figs. 1–3, 5
,
7–10
Diagnosis.
Bucculatrix yingjingensis
is very similar to
B. liubaensis
in forewing color and pattern, but it can be distinguished by the following characters: head, vertex, and tuft yellow, and abdomen brown (head and vertex cream white, tuft reddish brown, and abdomen black in
B. liubaensis
), forewing spots distinctly larger than in
B. liubaensis
, and one additional small white spot at the forewing apex in the female (absent in
B. liubaensis
). The male genitalia are similar to those of
B. noltei
Petry, 1912
, a European
Artemisia
-feeding species, but in
B. noltei
the apical part of the valva is narrower and the basal part is much wider (
Bengtsson & Johansson 2011: 63
).
Description.
Male (
Figs. 1–3, 5
). Wing expanse
8.8 mm
. Head. Face smooth, densely covered with appressed yellow scales. Vertex with slender, hair-like, yellow scales, projected in all directions medially, and some broad brown scales laterally. Antennae filiform, about 3/4 of forewing length; scape stout, forming eye-cap, covered with broad yellow scales dorsally and some slender, hair-like scales ventrally; pedicel short, yellowish; flagellum brownish mixed with some black scales, first flagellomere distinctly with dorsal notch (
Fig. 3
). Proboscis without scales, short, smooth. Labial palpus very short.
Thorax. Thoracic tergites covered with brown scales anteriorly and with pale brown scales posteriorly. Foreleg covered with brown scales; midleg brown mixed with black scales on outer surface of tarsi; hindleg black with slen- der yellow to brown scales on tibiae. Forewing length about
4.2 mm
, lanceolate, ground color consisting of yellow and creamy white mixed basally and brown to dark brown apically, separated by an indistinct creamy white line near basal 1/3, 2/3 of apex with two small creamy white spots at anterior and posterior margins, upper one more or less ill defined; fringes and ventral surface dark grey to brown. Venation with Sc broadened basally, ending basal to 1/3 of wing margin; R with five branches, R
5
stalked with M
1
; M
2
, CuA and CuP poorly differentiated, CuP as a fold; 1A+2A well developed, reaching near midpoint of posterior margin (
Fig. 5
). Hindwing with dorsal and ventral surfaces and fringes dark grey to brown, with a single long frenular bristle (
Figs. 1, 5
). Venation with Sc broadened basally, extending to nearly 4/5 of hindwing; Rs not reaching wing apex; M
1
and M
2
weakly developed and well separated; CuA well developed, ending near midpoint of wing margin; A as a fold (
Fig. 5
).
Abdomen. Dorsally black and ventrally dark brown except abdominal apex with two clusters of elongated, yellow scales. Male genitalia (
Figs. 7–10
) with uncus and gnathos absent; tegumen broad, extended; socii as short lobes, rolled down inside, with slender setae from basal 1/4 to apical 1/8, and apex covered with stout setae; tuba analis moderately sclerotized, longer than tegumen but not exceeding socii, connected with tegumen and vinculum basally; subscaphium weakly sclerotized, densely covered with very minute setae; valva broad, apex gradually narrowed and blunt circle, densely covered with slender setae on distal half of outer surface and stout setae along dorsal margin of apex; transtilla a pair of straight process, base somewhat wider than apex; vinculum moderately sclerotized, ventral surface broad, lateral sides gradually narrow; phallus elongate, basal half gradually broad to the base, apical half almost equal width, apex distinctly curved and hook-shaped; cornuti absent (
Fig. 9
); juxta weekly sclerotized, curved, almost as long as valva, broader basally, apex bilobate at connecting position.
Female. Head and Thorax: Essentially as described for male, but white spots of forewing larger, and a distinct transverse white line present at basal 1/3 (
Fig. 2
). Abdomen: Lost.
Holotype
:
♂
,
China
:
Longcanggou National Forest
Park
,
Ya’an City
,
Sichuan Province
,
N29.631
,
E102.886
,
17.VII.2017
, light trapping,
G.H. Huang
,
M. Wang
,
T. Hirowatari
&
S. Yagi
leg. (specimen no.
HAUHL 024226
, deposited in
HUNAU
).
Paratype
:
♀
, same data as holotype (specimen no.
HAUHL 0225424
, DNA no.
LCQ070
deposited in
HU-
NAU
)
.
Host plant.
Unknown.
Distribution.
China
(
Sichuan
).
Etymology.
The specific epithet refers to the
type
locality - Longcanggou National Forest Park in Yingjing County.