Corresponding author: Shuxia Wang (shxwang@nankai.edu.cn)
Academic editor: Mark Metz
The genus
Yu S, Wang S (2023)
The aim of this paper is to review the genus
Specimens were collected in China since 1998 using light traps. Wingspan was measured from the tip of the left forewing to the tip of the right forewing. Genitalia slides were prepared following the methods introduced by
All the specimens examined, including the type series of the new species, are deposited in the Insect Collection of Nankai University, Tianjin, China (
Antenna as long as or slightly longer than forewing. Labial palpus with second palpomere thickened, third palpomere slender. Forewing narrowly elongate, usually dark brown with black patches; R1, R2 and R3 free, R4 and R5 stalked, M1, M2 and M3 separate, CuA1 and CuA2 short-stalked (Fig.
Wing venation of
Male genitalia. Cucullus narrowed, usually with a ventrobasal process. Juxta with horn-shaped or needle-like posterior lobes extending dorsad and smaller posterolateral lobes extending laterally. Aedeagus with two dorsal denticles; cornuti spiniform or needle-like.
Female genitalia. Antrum sclerotized along posterior margin forming a band. Signa of corpus bursae usually consisting of several teeth and a denticulate plate.
The genus is close to the monotypic genus,
China (
The generic characters of
1 | Forewing pale, yellowish brown; juxta without posterior lobes (Fig. |
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– | Forewing dark; juxta with posterior lobes |
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2 | Apices of posterior lobes of juxta extending posteriorly well beyond middle of tegumen (Fig. |
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– | Apices of posterior lobes of juxta extending posteriorly to anterior margin of tegumen or only slightly beyond |
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3 | Inner margin of base of posterior lobes of juxta with medial, triangular projection (Fig. |
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– | Posterior lobes of juxta smooth on inner margin |
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4 | Posterior lobes of juxta needle-like; uncus longer than width (Fig. |
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– | Posterior lobes of juxta horn-shaped; uncus wider than length |
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5 | Length of ventrobasal process on cucullus greater than basal width of cucullus (Fig. |
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– | Length of ventrobasal process on cucullus less than basal width of cucullus |
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6 | Cucullus widened or dilated apically (Fig. |
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– | Cucullus slightly narrowed apically |
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7 | Juxta incised in triangle at middle on posterior margin; posterior lobes straight (Fig. |
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– | Juxta broadly concave on posterior margin; posterior lobes curved laterally at middle (Fig. |
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This species is diagnostic in the male genitalia by the juxta incised at middle in a triangle on the posterior margin (Fig.
Wingspan 13.5–15.0 mm (Fig.
Dorsal habitus of
China (Sichuan, Yunnan) (
The male genitalia of the new species is similar to that of the type species,
Wingspan 13.0–15.0 mm (Fig.
China (Chongqing, Henan, Hubei, Jiangxi, Shaanxi, Yunnan, Zhejiang).
The specific epithet is derived from the Latin
This species is similar to
Male genitalia of
Wingspan 11.0–13.5 mm (Fig.
China (Chongqing, Guizhou, Hubei, Sichuan, Yunnan).
This species can be distinguished from its congeners by the pale yellowish brown forewing, the juxta without posterior lobes in the male genitalia (
Wingspan 16.0 mm (Fig.
China (Guizhou, Hunan).
The male genitalia of the new species is similar to that of
Wingspan 12.0–13.5 mm (Fig.
China (Yunnan).
The specific name is derived from the Latin
The new species is unique among other species in the genus by having a triangular process at the base of the posterior lobe of the juxta at the inner margin. It is similar to
Wingspan 13.0–13.5 mm (Fig.
Male genitalia of
Female genitalia of
China (Yunnan).
The specific epithet is derived from the Latin
Wingspan 12.5–13.0 mm (Fig.
This species is distinct among other species by having a clavate valva (Fig.
China (Yunnan, new record), Thailand (
This species was originally described from Thailand based on a single male. It is recorded from China for the first time in this paper.
The new species can be distinguished from its congeners by the ventrobasally serrate cucullus and the apices of the posterior lobes of the juxta extending beyond the middle of the tegumen.
Wingspan 13.0–14.0 mm (Fig.
China (Yunnan).
The specific name is derived from the Latin
We would like to express our cordial thanks to all the team members for their participating in the field collection. This study is supported by the National Key Research and Development Program “Intergovernmental Cooperation on International Science and Technology Innovation” Special Project of the Ministry of Science and Technology of China (No. 2022YFE0115200).