Edosa robustispina Yang, Wang & Li, sp. nov.
Creators: name: Yang, Linlin
name: Wang, Shuxia
name: Li, Houhun
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Tineidae
Edosa
Edosa robustispina

description: Edosa robustispina Yang, Wang & Li, sp. nov.
(Figs 4, 43, 44, 73, 92)
Type material. Holotype ♂, CHINA: Botanical Garden, Menglun (21°52'N 101°18'E), Yunnan Province, 570 m, 15.viii.2005, leg. Yingdang Ren.
Paratypes: CHINA: Yunnan Province: 1 ♂, same data as for holotype, genitalia slide No. XYL08109; 1 ♀, Botanical Garden, Menglun, 230 m, 21.iv.1995, leg. Hongjian Wang, genitalia slide No. XYL03114; 1 ♀, Rare Botanical Garden, Ruili (24°00΄N, 97°50΄E), 1000 m, 6.viii.2005, leg. Yingdang Ren; 4 ♂, 3 ♀, Bakaxiaozhai (21°58'N 101°12'E), Mengla County, Xisuangbanna, 620 m, 6,7. viii.2010, leg. Yinghui Sun & Lixia Li, genitalia slide No. YLL 10067 m; 1 ♂, 4 ♀, Botanical Garden, Xishuangbanna (21°55'N 101°16'E), 531 m, 4,15,19. viii.2010, leg. Yinghui Sun & Lixia Li, genitalia slide Nos. YLL 10116 m, YLL10065f; 1 ♀, same data but 560 m, 1.viii.2010; 1 ♀, Mengyuan (21°42΄N, 101°23΄E), Mengla County, Xishuangbanna, 640 m, 10.viii.2010, leg. Yinghui Sun & Lixia Li; 3 ♀, Menglun (21°52'N 101°18'E), Xishuangbanna, 750 m, 24,25. x.2010, leg. Bingbing Hu, Jing Zhang & Yanpeng Cai; 1 ♀, Yayi (23°14΄N, 101°41΄E), Pu'er, 21.x.2010, leg. Bingbing Hu, Jing Zhang & Yanpeng Cai.
Diagnosis. This new species is remarkable for the dense, snowy white, fine scales on the seventh tergite in the female, which are yellowish brown to brown in other Edosa species in China. The variegated flagellum and forewing pattern are similar to those of E. cornuta sp. nov., E. hendrixella Robinson, 2008 and E. uncusella sp. nov., but can be distinguished from them by the irregularly shaped valva with a digitate basal flange and a shallow mediobasal lobe bearing peg-like sensillae.
Description. Adult (Figs 43, 44). Wingspan 9.0−14.0 mm. Vertex dusty yellow, frons slightly orange yellow. Antenna 0.9× length of forewing; scape dusty yellow, with a few black pecten bristles; flagellum variegated, dusty yellow on ventral surface, dark purplish brown on dorsal surface except first few segments dusty yellow. Labial palpus with first and second segments yellowish white, mixed with darker scales on inner surface, blackish brown on outer surface, third segment blackish brown basally, yellowish brown distally. Thorax and tegula blackish brown. Forewing index 0.27−0.32, basal 4/5 bright lemon yellow, distal 1/5 dark grayish brown, with black-tipped scales; retinaculum present; cilia dark grayish brown with black tips, forming three well-defined cilia lines. Hindwing grayish brown; male with a single short, slender evenly curved frenular bristle, female with two slender bristles, shorter one 0.25× length of longer one; cilia pale grayish brown. Fore and mid legs blackish brown; hind leg yellowish brown. Female with densely snowy white, fine scales on seventh tergite.
Pregenital abdomen. First tergum without sclerotization. In male, coremata present in eighth segment; eighth sternite 0.2× as long as wide, gently concave on posterior margin, without caudal process; eighth tergite trapezoidal, 0.5× as long as wide, gently concave on posterior margin, without caudal process. In female, seventh sternite semicircularly concave at middle on posterior margin, with a shallow pocket at each side of medial concavity.
Male genitalia (Fig. 73). Vinculum semicircularly convex on anterior margin, slightly concave at middle on posterior margin; medial process on ventrocaudal margin short, T-shaped, 0.6× length as depth of vinculum. Tegumen about 0.15× depth of vinculum, bar-shaped. Uncus with lobate base separated by membrane; uncus lobe small, short, 0.25× depth of vinculum, not twisted, basal 2/3 expanded, distal 1/3 digitate, melanized and bent ventrad; sclerite present between uncus lobes, knot-shaped. Valva irregularly elongate, apex rounded, with peg-like sensillae; costal margin convex in hillock shape at basal 1/4, slightly convex at distal 1/4; basal flange digitate, 0.25× length of valva, recurved, setose dorsally, with tubercular, semicircular lobe at base; bridging lobe absent between basal flange and valva; ventral margin with basal 1/3 gently convex, forming very shallow ventral lobe, distal 2/3 gently concave; basal margin with small, smooth ‘secondary apodeme’ close to ventral margin; inner surface with peg-like sensillae from basal 1/4 of costal margin to apical margin, with a shallow mediobasal lobe bearing dense peg-like sensillae. Juxta reflexed anteriorly along inner surface of vinculum, as long as aedeagus, grooved in dorsal midline, folded laterally, gently curved. Aedeagus short, 0.4× length of valva, bent ventrad; double-walled: inner wall tube-shaped, outer wall slightly expanded and forming shallow subapical carinae. Bulbus ejaculatorius 8.0× length of aedeagus, subdistal section slightly expanded and curved, distal section expanded, as broad as subdistal section.
Female genitalia (Fig. 92). Ovipositor length 2.3 mm. Eighth tergite subovate, anterior margin convex triangularly; microtrichiate on posterior 1/5 to 2/5, with sparse setae on posterior 1/5. Eighth sternite deeply concave at middle on anterior and posterior margins, microtrichiate postero-laterally; one conical medial protuberance surrounding posterior part of ductus bursae. Ostium on posterior margin of ventral protuberance. Antrum absent, ductus bursae very narrow, as long as corpus bursae. Colliculum comprising a pair of skirt-like, base-joined, distal 1/3 spinose processes extending from posterior 1/5 of corpus bursae, crossing second ring to posterior 2/5 of corpus bursae; second ring at posterior 1/4 of corpus bursae, anteriorly extended in tongue shape at dorsal surface of corpus bursae, produced to a tooth-shaped ventral extension; a separate bell-shaped sclerite placed anterior to tooth-shaped ventral extension; inception of ductus seminalis at middle of tongue-shaped extension of second ring. Corpus bursae with posterior 2/5 narrowed, anterior 3/5 broadened and ovate; signum absent.
Distribution. China (Yunnan).
Etymology. The specific name is derived from the Latin robustispinus, meaning robustly spinose, referring to the peg-like sensillae on the valva.
description: Published as part of Yang, Linlin, Wang, Shuxia & Li, Houhun, 2014, A taxonomic revision of the genus Edosa Walker, 1886 from China (Lepidoptera, Tineidae, Perissomasticinae), pp. 1-102 in Zootaxa 3777 (1) on pages 36-37, DOI: 10.11646/zootaxa.3777.1.1, http://zenodo.org/record/249826