Dichomeris infundibularis Park & Bae & Zhao & Li 2020, sp. nov.
Creators: name: Park, Kyu-Tek
name: Bae, Yang-Seop
name: Zhao, Shengnan
name: Li, Houhun
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Gelechiidae
Dichomeris
Dichomeris infundibularis

description: Dichomeris infundibularis Park & Li, sp. nov.
urn:lsid:zoobank.org:act: 5D2AE29F-13C7-46B8-BD82-A76038DFD28E
(Figs 11, 37, 50)
Type material. Holotype ♂, VIETNAM: Bac Kan Prov.: Ba Be Nat. Park, 26–28 vii 2006, leg. Park, Chae & Cuong, gen. slide No. CIS-6284, in NIBR. Paratypes: VIETNAM: Vinh Phuc Prov.: 1♀, Tam Dao Nat. Park, 450 m, 27 iv 2006, leg. Park, Kim & Kang, gen. slide no. nklep033. CHINA: Hainan Prov.: 3♀, Nankai Town (19°07’N 109°40’E), Yinggeling, 270 m, 09–10 xi 2016, leg. X Bai, S Qian, & W Qi, gen. slide nos. ZSN16417, ZSN16422, in NKU.
Description. Adult (Fig. 11). Wingspan 12.0–13.0 mm. Head dark yellowish brown dorsally; frons orange gray. Ocellus present. Antenna with scape dark brown on dorsal surface, grayish white on ventral surface; flagellum yellowish brown with dark-brown annulations on dorsal surface, pale yellow on ventral surface. Second segment of labial palpus dark brown on outer surface, pale gray on inner surface, clothed with grayish white-tipped triangular scale tuft; 3rd segment smoothly clothed, longer than second segment, pale yellow except dark brown on ventral surface. Thorax dark brown mesially, yellowish brown laterally; tegula dark brown; mesothorax with khaki hairpencils arising from anepisternum in male. Fore- and midleg dark brown on outer surface; femora grayish white, tibiae and tarsi pale yellow on inner surface, tarsi with each tarsomere pale yellow apically on outer surface; hindleg pale yellow on inner surface, dark brown on outer surface except tibia pale yellow in basal half, tarsomeres pale yellow at apex on outer surface. Forewing ground color yellowish brown, scattered with dark-brown scales; several oblique strigulae along costa in basal 3/5; ill-defined dark-brown fascias arising from 1/3 of costa to middle of dorsum; apex obtuse; termen slightly oblique, with black line along margin; fringe concolorous with ground color in basal half, then dark brown beyond. Hind wing dark yellowish brown; fringe concolorous with ground color.
Male genitalia (Fig. 37): Uncus rather small, broadened in distal 1/3, with rounded posterior margin, bearing two long setae posteriorly, deeply concave in semicircle on anterior margin. Gnathos short, strongly curved at middle, sharp at apex; culcitula triangular, densely setose, rounded posteriorly. Valva longer than tegumen plus uncus complex, concave at distal 1/5 on dorsal margin, nearly straight on ventral margin, rounded at apex; free ventral lobe short, about 1/5 the length of valva, setose, pointed apically. Setose patch large sheeted. Vinculum rather broad, about equal to the length of tegumen plus uncus; lateral lobes arising from basal 1/3, shorter than 1/6 the length of vinculum, cornute, setose apically. Saccal region nearly straight on anterior margin. Sicae paired lobes, nearly symmetrical, separated at base, narrowed basally, then broadened, slightly arched on inner margin, distal half narrowed sparsely setose. Aedeagus stout, nearly parallel sided, rounded basally, bifurcated apically: left part slightly longer than right one; internal lobe sclerotized arising from disatl 1/3 of aedeagus, excurvate mesially, acute apically, reaching apex of aedeagus.
Female genitalia (Fig. 50): Apophyses anteriores about 1/4 length of apophyses posteriors, triangularly inflated distally. Eighth tergite with a triangular, median protrusion on posterior margin; eighth sternite deeply concave on posterior margin medially, densely setose laterally. Antrum broadly developed in rectangular, more or less cupshaped. Ductus bursae membranous, short, narrowed between antrum and ductus bursae, with heavily sclerotized longitudinal band mesially and with various irregular shaped, heavily sclerotized plates arising from ductus bursae extending to anterior 1/4 of corpus bursa. Corpus bursae ovate; signum plate ovate, sclerotized, placed at the middle of corpus bursae; accessory bursae arising from middle of signum.
Distribution. China (Hainan), Vietnam (Vinh Phuc, Bac Kan).
Diagnosis. This species is superficially similar to Dichomeris hodgesi Li & Zheng, 1996, but it can be distinguished from D. ferrogra by having triangular scale-tuft on the second segment of the labial palpus, khaki hairpencils on the mesothoracic anepisternum in the male; the male genitalia with uncus narrowed in basal 2/3, inflated in distal 1/3, the sicae with basal half broader, distal half narrower; the eighth tergite with median protrusion posteriorly. In D. ferrogra, the second segment of the labial palpus has a quadrate scale tuft, the mesothoracic anepisternum has gray hair- pencils in the male; the male genitalia with rectangular uncus; the eighth tergite straight on the posterior margin.
Etymology. The specific name is derived from the Latin, infundibularis (= funneled), in reference to the ductus bursae having a funneled sclerotized plate distally.
description: Published as part of Park, Kyu-Tek, Bae, Yang-Seop, Zhao, Shengnan & Li, Houhun, 2020, Thirteen new species of genera Dichomeris Hübner, 1818 and Helcystogramma Zeller, 1877 (Lepidoptera, Gelechiidae, Dichomeridinae) with twenty-one newly recorded species from Vietnam, pp. 435-461 in Zootaxa 4821 (3) on pages 437-438, DOI: 10.11646/zootaxa.4821.3.2, http://zenodo.org/record/4400933