Phaecadophora vascularis Li & Yu, 2023

Li, Yange, Jing, Wenqing, Hao, Shulian & Yu, Haili, 2023, Descriptions of two new species of Phaecadophora Walsingham, 1900 (Lepidoptera, Tortricidae, Olethreutinae) from China, ZooKeys 1187, pp. 223-236 : 223

publication ID

https://dx.doi.org/10.3897/zookeys.1187.111101

publication LSID

lsid:zoobank.org:pub:9B1CA3A4-435B-4179-82DE-204771324B1C

persistent identifier

https://treatment.plazi.org/id/D963BF72-463D-497F-B0FF-E4B3211E6E67

taxon LSID

lsid:zoobank.org:act:D963BF72-463D-497F-B0FF-E4B3211E6E67

treatment provided by

ZooKeys by Pensoft

scientific name

Phaecadophora vascularis Li & Yu
status

sp. nov.

Phaecadophora vascularis Li & Yu sp. nov.

Figs 1C View Figure 1 , 2E, F View Figure 2 , 3B View Figure 3 , 4D-F View Figure 4 , 7 View Figure 7 , 8 View Figure 8

Type materials.

Holotype: ♂, China, Yunnan Prov.: Sun River Nature Reserve, 22°36.60'N, 101°06.00'E, alt. 1450 m, 13 May 2014, Zhenguo Zhang leg., genitalia slide no. SXL20569. Paratypes: Yunnan Prov.: 1♂, same data as holotype except 11 May 2014; 1♂, Xishuangbanna Reserve, 21°54.60'N, 101°17.40'E, 21 May 2015, Zhenguo Zhang leg.; 1♀, Tengchong County, Mangbang Town, 25°01.80'N, 98°42.00'E, alt. 1330 m, 10 Aug. 2015, Kaili Liu and Hao Wei leg.

Diagnosis.

This species shares similar markings on the forewing with P. fimbriata and P. dactylina sp. nov., yet its scaling is distinctly pale, particularly dorsal area, which is tawny, suffused with pale brown, as opposed to the fuscous to blackish fuscous hue observed in the latter two species. Furthermore, males of P. vascularis sp. nov. has no darkened long scales in the anal roll of the hindwing and instead bear a solitary, pale tawny hair pencil. In contrast, males of P. fimbriata and P. dactylina sp. nov. present two hair pencils alongside dense, darkened long scales in the anal roll of the hindwing-one hair pencil in pale tawny and the other in blackish fuscous. In the male genitalia, P. vascularis sp. nov. exhibits similarities to P. acutana ; however, it is characterized by the valva featuring a short, finger-like prominence below the base of the costa, a tuft of spines proximal to the base of the cucullus, and the cucullus without a densely spiny transversal ridge basally. While in P. acutana , the valva lacks a prominence below the costa, the sacculus bears a tuft of spines under the apical margin, and a densely spiny ridge spans across the base of the cucullus. In the female genitalia, P. vascularis sp. nov. can be separated from other species within the genus by possessing two unequal signa, one of which is broadly rectangular, as delineated in the key.

Description.

Adult (Fig. 1C View Figure 1 ) with forewing length 8.0-8.5 mm. Head (Fig. 2E, F View Figure 2 ): vertex, antenna and upper frons tawny-cream, paler on lower frons; vertex roughly scaled; antenna extending to middle of forewing costa. Ocellus well developed; chaetosema present. Labial palpus ascending, mostly tawny-cream, paler on inner surface and base, medially dusted with gray scales on outer side; median segment distally expanded, terminal segment porrect, rather slender.

Thorax: pale tawny, without posterior crest. Hind tibia white, simple, not modified in male, without hair pencils (Fig. 3B View Figure 3 ). Forewing subrectangular, costa curved basally and nearly straight distally, termen vertical and straight, tornus rounded; upper side with complex pattern of distinct longitudinal, fine, parallel creamy and pale brown lines, dusted with fuscous rising from base and costa to termen, interrupted by a short, transverse, fuscous marking on outer edge of cell; cilia tawny-white, white on tornus; underside brown, costa pale brown, with pairs of strigulae creamy, area of hindwing overlap white. Hindwing (Fig. 4D View Figure 4 ) fuscous except costal area of forewing white; cubital pecten (Fig. 4E View Figure 4 ) present; in male anal region expanded, with anal roll bearing a long pencil (Fig. 4F View Figure 4 ) of pale tawny hair-scales from base of wing; cilia pale brown basally and pale white apically; underside brown.

Abdomen: male genitalia (Fig. 7A View Figure 7 ) with tegumen high and narrow, shoulders obvious. Uncus a slender hook, densely spined. Socius small, oval, densely spined. Gnathos membranous. Valva moderate in width, curved, without neck; sacculus about 1/3 times of length of valva, its ventral edge nearly straight; a short finger-like prominence (Fig. 7B View Figure 7 ) below base of costa and above the protruding rim of basal excavation, with dense, short spines apically; sacculus with sparse spines basally and a rounded tuft of spines proximal to cucullus; cucullus with dense spines and a slender spine cluster (Fig. 7C View Figure 7 ) under its ventroproximal base, with these spines shorter than uncus. Phallus short, without cornuti. Female genitalia (Fig. 8A View Figure 8 ) with papillae anales narrow, densely setose. Anterior apophyses a little shorter than posterior apophyses. Sterigma (Fig. 8B View Figure 8 ) a finely spinulose, inverted, blunt triangular area with a median split containing ostium. Colliculum moderately sclerotized, about 1/4 times of ductus bursae in length, inception of ductus seminalis posterior to midlength. Corpus bursae ovoid, granulated; signa (Fig. 8C View Figure 8 ) two, double-folded, unequal in size, the large one like a broad and shallow basket, somewhat rectangular, the small one a little oval, about half of the larger one in size.

Etymology.

The specific name is derived from the Latin Phaecadophora vascularis (= veined), referring to the markings of forewing.