Edosa robinsoni 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 robinsoni

description: Edosa robinsoni Yang, Wang & Li, sp. nov.
(Figs 2, 17 b, 18b, 28, 59, 84)
Type material. Holotype ♂, CHINA: Mt. He (22°45'N, 112°57'E), Guangdong Province, 10.x.2002, leg. Guilin Liu & Binglan Zhang, genitalia slide No. XYL03174.
Paratypes: CHINA: Guangdong Province: 1 ♂, Mt. He, 26.viii.2002, leg. Guilin Liu, genitalia slide No. XYL05039. Fujian Province: 1 ♀, Xiamen University Botanical Garden (24°26΄N, 118°06΄E), 85 m, 7.viii.2012, leg. Zhibo Wang & Zhenguo Zhang; 1 ♂, Xiamen University Botanical Garden, 85 m, 24.ix.2012, leg. Zhibo Wang. Guangxi Zhuang Autonomous Region: 1 ♂, Pingxincun, Yizhou (24°30΄N, 108°40΄E), 150 m, 16.viii.2011, leg. Shulian Hao & Yinghui Sun, genitalia slide No.YLL11114. Hong Kong: 2 ♂, Kadoorie Agricultural Research Centre (22°25΄N, 114°06΄E), 210 m, 17,21. iv.2007, leg. Houhun Li et al., genitalia slide No. XYL08079; 2 ♀, Gaotang, Xigong (22°24΄N, 114°19΄E), 100 m, 25.ix.2009, leg. Houhun Li et al., genitalia slide Nos. YLL11154, YLL11157.
Diagnosis. This new species is similar to E. hamata sp. nov. superficially, but can be recognized by having a subtriangular medial process on the costal margin of the valva, which is absent in the latter species.
Description. Adult (Fig. 28). Wingspan 10.0−11.5 mm in male. Head dull orange yellow. Antenna dusty yellow, as long as forewing; scape with a few black pecten bristles; flagellum unicolorous. Labial palpus with first and second segments yellowish brown tinged with darker scales on inner surface, dark brown on outer surface; third second yellowish brown, dark brown at base on outer surface. Thorax and tegula blackish brown. Forewing index 0.28−0.3, grayish black, shining dark purple, individual scales uniformly colored; retinaculum present; cilia grayish black, cilia line ill-defined. Hindwing pale grayish brown; male with a single short, slender evenly curved frenular bristle, female with two slender bristles, shorter one 0.7× length of longer one; cilia grayish brown in basal 1/3, pale gray in distal 2/3. Fore leg purplish brown; mid leg purplish brown, tarsus yellowish brown mixed with darker scales on ventral surface; hind leg yellowish brown.
Pregenital abdomen. In male, first tergum with medial 1/3 sclerotized; coremata present in eighth segment; eighth sternite 0.25× as long as wide, without caudal process; eighth tergite trapezoidal, without caudal process. In female, seventh sternite semicircularly concave at middle on posterior margin.
Male genitalia (Fig. 59). Vinculum with anterior and posterior margins parallel sided; medial process absent from ventrocaudal margin. Tegumen as deep as vinculum, semicircularly concave on anterior margin, convex at middle on posterior margin. Uncus with shouldered base forming a trapezoidal membraneous section with tegumen; uncus lobe as long as depth of vinculum, twisted at middle, basal half slightly expanded, punctate, distal half heavily sclerotized, hooked, smooth dorsally, hairy ventrally, apex melanized; sclerite absent between uncus lobes. Valva triangular, narrowed basally, sharply widened at 1/4, then narrowing to blunt apex; costal margin bearing small dentations at base, with a subtriangular medial process; basal flange large, smooth, hooked; bridging lobe absent between basal flange and valva; ventral margin with deep ventral lobe; basal margin with inconspicuous ‘secondary apodeme’ close to apodeme; inner surface unmodified. Juxta angled caudally, short and flat. Aedeagus stout, 1.5× length of valva, basal half being a pair of paddle-shaped sclerites, apex deeply concave at middle, dentate on dorsal surface of concavity. Bulbus ejaculatorius 3.0× length of aedeagus, slightly expanded at base, where ductus ejaculatorius is coiled, subdistal section not hypertrophied, distal section slightly expanded.
Female genitalia (Fig. 84). Ovipositor length 1.5 mm. Eighth tergite funnel-shaped, anterior 2/3 membraneous, tapered, forming slender process at middle on anterior margin; posterior half microtrichiate, with scattered setae near posterior margin. Eighth sternite rectangular, with sparse setae medially; anterior margin straight, posterior margin concave, slightly folded inward, forming a pair of shallow pockets posterolaterally. Ostium at middle of posterior margin of eighth sternite. Antrum weakly sclerotized; ductus bursae about 0.5× length of corpus bursae. Colliculum comprising a pair of sclerotized base-joined narrow bands extending from junction of ductus bursae and corpus bursae, crossing second ring to anterior end of corpus bursae; second ring at posterior 1/4 of corpus bursae, anteriorly produced to an elongate lance-like dorsal process with end extending to anterior 1/4 of corpus bursae; inception of ductus seminalis at middle on posterior margin of lance-like process of second ring. Corpus bursae ovate; signum absent.
Distribution. China (Fujian, Guangdong, Guangxi, Hong Kong).
Etymology. This species is named after the late Dr. Gaden S. Robinson for his great contribution to the study of Tineidae, and for commemorating the friendship between him and the corresponding author.
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 21-22, DOI: 10.11646/zootaxa.3777.1.1, http://zenodo.org/record/249826