Homaloxestis longicornuta Yu et Wang 2020, sp. nov.
Creators: name: Yu, Shuai
name: Wang, Shuxia
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Lecithoceridae
Homaloxestis
Homaloxestis longicornuta

description: Homaloxestis longicornuta Yu et Wang, sp. nov.
(Figs 1, 5, 9, 13, 17)
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); and the ductus bursae has spines (Gozmány 1978: Taf. 58, Fig. 8).
Description. Adult (Figs. 1, 5) 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). 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). 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). 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.
description: Published as part of Yu, Shuai & Wang, Shuxia, 2020, Three new species of the genus Homaloxestis Meyrick, 1910 (Lepidoptera Lecithoceridae) from China, pp. 589-597 in Zootaxa 4767 (4) on pages 590-592, DOI: 10.11646/zootaxa.4767.4.8, http://zenodo.org/record/3774993