Homaloxestis rotundisigna Yu et Wang, 2020
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publication ID |
https://doi.org/ 10.11646/zootaxa.4767.4.8 |
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publication LSID |
urn:lsid:zoobank.org:pub:D5E68ACA-4203-4BF5-A64C-4FB762DFF6C9 |
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DOI |
https://doi.org/10.5281/zenodo.3796623 |
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persistent identifier |
https://treatment.plazi.org/id/0391B245-9F5B-C831-FF90-F9BEFDA4FB01 |
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treatment provided by |
Plazi |
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scientific name |
Homaloxestis rotundisigna Yu et Wang |
| status |
sp. nov. |
Homaloxestis rotundisigna Yu et Wang View in CoL , sp. nov.
( Figs 4 View FIGURES 1–4 , 8 View FIGURES 5–8 , 12 View FIGURES 9–12 , 16 View FIGURES 13–16 , 20 View FIGURES 17–20 )
Type material. CHINA, Xizang [Tibet] Autonomous Region: Holotype ♂, Tongmai Town (30°06′N, 95°05′E), Bomi County, 2029 m, 14.VIII.2018, leg. Mujie Qi, slide No. YS19394. Paratypes (1♂, 4♀): 4♀, same data as holotype except dated 12‒16.VIII.2018, slide Nos. YS19395, YS19397; 1♂, Gongxiang, Bomi County, 2230 m, 4.VIII.2017, leg. Mujie Qi & Xiaofei Yang, slide No. YS19323.
Diagnosis. This species is similar to H. stenopteryx Wu, 2005 in the male genitalia by sharing a valva that is narrowed distally and rounded apically, but it can be distinguished from the latter by the nearly straight costal bar and the sub-crescent cornuti of the aedeagus in the male genitalia; whereas in H. stenopteryx , the costal bar is angled and the cornuti are sagittate ( Wu 2005: 270, Fig. 3 View FIGURES 1–4 ).
Description. Adult ( Figs. 4 View FIGURES 1–4 , 8 View FIGURES 5–8 ) wingspan 13.5‒16.5 mm. Head dark brown. Antenna pale orange. Labial palpus pale orange except dark brown ventrally on third segment; second segment thickened; third segment slender, as long as second segment. Thorax and tegula dark brown. Forewing with costal margin slightly arched, apex obtuse, termen shallowly concave; dark brown, mixed with brownish yellow; fringe dark brown; basal line orange white; all veins free except R 4 and R 5 stalked for about 3/5 length. Hindwing pale brownish yellow, with a bundle of long, fluffy hairs at base; fringe yellowish brown; basal line orange white; vein M 3 stalked with CuA 1 for about 1/5 length. Fore- and midlegs orange white, mixed with dark brown scales on ventral surface; hindleg pale orange on inner surface, mixed with dark brown scales on outer surface, tibia roughly scaled.
Male genitalia ( Fig. 12 View FIGURES 9–12 ). Uncus lobe transversely elliptical, with a small notch at middle on posterior margin, setose posteriorly, with a narrow V-shaped sclerite anteriorly. Gnathos with lateral arms fused medially and trian- gularly produced posteriorly; median process broad at base, tapered to apex, curved ventrad at distal 1/4. Costal bar nearly straight, narrow basally, widened to cucullus. Valva broad basally, slightly narrowed to cucullus; cucullus slightly narrowed to rounded apex, setose on ventral 2/3, with a densely setose, sub-triangular process at ventrobasal corner and a row of short, strong setae from basal 1/3 to apex above ventral margin; sacculus narrowly banded, reaching cucullus, with a cluster of long setae medially. Juxta sub-quadrate; posterior margin concave at middle, with a large sub-rectangular process posterolaterally, with erect, sub-triangular sclerite along each side of concavity; anterior margin triangularly produced medially. Vinculum roundly produced anteriorly. Aedeagus nearly as long as valva, slightly curved, basal 2/5 narrow, dilated medially, slightly narrowed to apex; cornuti consisting of three subcrescent, dorsally serrate sclerites, located in distal 2/3 of aedeagus.
Seventh sternite ( Fig. 16 View FIGURES 13–16 ). Seventh sternite transversely banded, wider than long, anterior margin slightly convex; anterolateral and posterolateral ribs represented by short, sub-triangular processes.
Female genitalia ( Fig. 20 View FIGURES 17–20 ). Eighth sternite shallowly concave at middle on posterior margin. Apophyses posteriores about twice length of apophyses anteriores. Antrum funnel-shaped, its ventral surface with a spinulate semicircular sclerite. Ductus bursae nearly as long as corpus bursae, wrinkled, anterior half dilated; ductus seminalis anterior to middle of ductus bursae, as broad as corpus bursae. Corpus bursae elliptical; signum rounded, located medially, with a horizontal ridge at middle.
Distribution. China (Xizang [Tibet]).
Etymology. The specific epithet is derived from the Latin rotund- and signum, referring to the round signum of the corpus bursae in the female genitalia.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.