Dichomeris lancea 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 lancea

description: Dichomeris lancea Park & Li, sp. nov.
urn:lsid:zoobank.org:act: DDC36234-E09B-493E-8B16-38668D690939
(Figs 12, 38)
Type material. Holotype ♂, VIETNAM: Ninh Binh Prov.: Doi Vau Vill. (20°19'N 105°36'E), Cuc Phuong, 135 m, 10–16 ix 2013, leg. JB Heppner, gen. slide no. nklep054, in NIBR.
Description. Adult (Fig. 12). Wingspan 14.0 mm. Head dark yellowish brown dorsally, with erect grayish white scales laterally above compound eyes; frons grayish yellow. Ocellus present. Antenna with scape dark brown dorsally, grayish white ventrally; flagellum yellowish brown, with dark-brown annulations on dorsal surface. Second segment of labial palpus dark brown on outer surface, pale yellow on inner surface, clothed with grayish whitetipped quadrate scale tuft; 3rd segment smoothly clothed, as long as 2nd segment, pale yellow on dorsal surface, dark brown on ventral surface. Thorax and tegula dark yellowish brown; mesothorax with yellowish-brown hairpencil arising from anepisternum in male. Fore- and midleg dark brown on outer surface, grayish white on inner surface; hindleg yelowish white, mixed with brown on outer surface. Forewing pale yellowish brown, irregularly scattered with dark-brown scales; costal margin with dark-brown streak basally; apex acute; termen concave; fringe concolorous with groud color. Hind wing brownish gray; fringe concolorous with ground color.
Male genitalia (Fig. 38): Uncus small, elongated, inflated in distal 1/3, with rounded posterior margin; anterior margin gently concave. Gnathos with median process recurved in C-shape, sharply pointed at apex; culcitula triangular, densely spinose. Valva about as long as tegumen plus uncus, narrowest at base, dorsal margin slightly convex at 2/5, abruptly invaginate at 3/4; ventral margin gently concaved at middle, distal 1/4 slightly convex; apex rounded; valvella short, dilated in distal half, setose apically. Setose patch large sheeted. Vinculum shorter than length of tegumen plus uncus, slightly protruded in basal 2/5 outward, sparse with setae; lateral lobe absent. Saccal region broad, with small emargination on anterior margin medially. Sicae with two pairs of lobes, symmetrical, with each pair bearing two different length of arms, fused basally, then divided in U-shape; outer arm about 2/5 the length of inner arm, gently incurvate, gradually narrowed to sharp apex, inner arm nearly straight, extended to middle of tegumen. Aedeagus shuttle-shaped, bluntly rounded basally, broadest at zone; a sclerotized, bar-shaped rod arising from half of aedeagus along dorsal margin; a needle-like process, about equal to length of dorsal one, sharply pointed apically, and with a short, semiovate lobe internally.
Female unknown.
Distribution. Vietnam (Ninh Binh).
Diagnosis. This species resembles Dichomeris zonata Li & Wang, 1997, but it can be distinguished from the latter by having two pairs of sicae, wheras in D. zonata, the sicae are not furcate.
Etymology. The specific name is derived from the Latin, - lanceus (= lances), referring to the sicae with hastate lobes.
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 438-439, DOI: 10.11646/zootaxa.4821.3.2, http://zenodo.org/record/4400933