Homaloxestis longicornuta Yu et Wang, 2020

Yu, Shuai & Wang, Shuxia, 2020, Three new species of the genus Homaloxestis Meyrick, 1910 (Lepidoptera Lecithoceridae) from China, Zootaxa 4767 (4), pp. 589-597 : 590-592

publication ID	https://doi.org/ 10.11646/zootaxa.4767.4.8
publication LSID	urn:lsid:zoobank.org:pub:D5E68ACA-4203-4BF5-A64C-4FB762DFF6C9
DOI	https://doi.org/10.5281/zenodo.3796629
persistent identifier	https://treatment.plazi.org/id/0391B245-9F5F-C835-FF90-FDDCFDDDFE70
treatment provided by	Plazi
scientific name	Homaloxestis longicornuta Yu et Wang
status	sp. nov.

Treatment

Homaloxestis longicornuta Yu et Wang View in CoL , sp. nov.

( Figs 1 View FIGURES 1–4 , 5 View FIGURES 5–8 , 9 View FIGURES 9–12 , 13 View FIGURES 13–16 , 17 View FIGURES 17–20 )

Type material. CHINA, Yunnan: Holotype ♂, Taiyanghe (22°36′N, 101°07′E), Pu’er, 1450 m, 8.VIII.2014, leg. Zhenguo Zhang, slide No. YS19348. Paratypes (3♂, 1♀): 1♂, 1♀, 7‒8.VII.2014, 2♂, 30.VII.2014, other same data as holotype, slide Nos. YS19349(♀), YS19400(♂).

Diagnosis. This new species is similar to H. hades Gozmány, 1978 in the male genitalia by sharing a subparallel cucullus, but it can be distinguished from the latter by the median process of the gnathos curved preapically, the aedeagus with a single, needle-like cornutus in the male genitalia, and the ductus bursae without spines in the female genitalia; whereas in H. hades , the median process of the gnathos is curved medially, the aedeagus has 2‒3 plate- shaped and some thorn-like cornuti ( Gozmány 1978: Taf. 18, Fig. 8 View FIGURES 5–8 ); and the ductus bursae has spines ( Gozmány 1978: Taf. 58, Fig. 8 View FIGURES 5–8 ).

Description. Adult ( Figs. 1 View FIGURES 1–4 , 5 View FIGURES 5–8 ) wingspan 19.0‒20.0 mm. Head yellowish brown, laterally with creamy-white scales.Antenna pale orange; flagellum annulated with yellowish brown dorsally. Labial palpus with second segment thickened, brownish yellow on outer surface, becoming paler on inner surface, male with dense long hairs dorsally; third segment slender, as long as second segment, creamy white dorsally, dark brown ventrally. Thorax and tegula yellowish brown. Forewing with costal margin slightly arched, apex obtuse, termen slightly concave; yellowish brown, with an orange-white band below costal margin from base to about distal 1/5; humeral streak dark brown, about 1/4 length of costal margin; discocellular stigma small rounded, dark brown; fringe yellowish brown; basal line pale orange; all veins free except R 3 stalked with R 4+5 at 1/3 length, R 4 and R 5 stalked for about 3/5 length. Hindwing and fringe yellowish brown; basal line pale orange; veins M 3 and CuA 1 arising from same point. Fore- and midlegs orange white dorsally, dark brown ventrally; hindleg pale orange on inner surface, pale brownish yellow on outer surface, tibia with dense hair-like scales.

Male genitalia ( Fig. 9 View FIGURES 9–12 ). Uncus lobe trapezoidal, concave on posterior margin semicircularly, forming short posterolateral lobes setose distally. Gnathos with sub-ovate basal plate bearing two small triangular processes on posterior margin; median process elongate, narrowed from base to distal 1/4, then sharply narrowed to acute apex, curved ventrad preapically. Costal bar narrow basally, widened to cucullus. Valva broad basally, narrowed to before cucullus; cucullus setose, subparallel to before rounded apex, with a cluster of long setae at ventrobasal corner and a row of short, strong setae from beyond it to apex above ventral margin; sacculus wide at base, narrowed to basal 1/4 length of ventral margin of valva, then almost uniformly reaching cucullus as a sclerotized band. Juxta elliptical, roundly convex on posterior margin, obtusely produced anteromedially; small process from below posterolateral corner, approximately 1/3 width of juxta. Vinculum narrow, roundly produced on anterior margin. Aedeagus uni- form, as long as valva; cornutus needle-like, about 3/5 length of aedeagus.

Seventh sternite ( Fig. 13 View FIGURES 13–16 ). Anterolateral rib thin, anterior margin produced medially and forming a large semicircular process, both rib and process reaching posterior margin of sixth abdominal segment.

Female genitalia ( Fig. 17 View FIGURES 17–20 ). Eighth sternite concave medially on posterior margin. Apophyses posteriores about twice length of apophyses anteriores. Ostium bursae large, bell-shaped. Ductus bursae shorter than corpus bursae, heavily sclerotized anteriorly; ductus seminalis slender, arising from about posterior 1/4 of corpus bursae. Corpus bursae ovate; signum located anterior to middle, strawberry-shaped, with dense denticles.

Distribution. China (Yunnan).

Etymology. The specific epithet is derived from the Latin long- and cornutus, referring to the long cornutus of the aedeagus in the male genitalia.