Euhyponomeutoides spadix Sohn and Wu, 2010

Sohn, Jae-Cheon, Wu, Chun-Sheng & Han, Hui-Lin, 2010, Three new species of Yponomeutinae (Lepidoptera: Yponomeutidae) from China with faunistic supplements and an updated list of the Chinese species of the subfamily, Journal of Natural History 44 (45 - 46), pp. 2803-2816 : 2806-2807

Euhyponomeutoides spadix Sohn and Wu , n. sp.

( Figures 5, 7 )

Type. HOLOTYPE: 1♀, Wulong (alt. 1900m), Sichuan Prov., China, 14 VIII 1980 (YQ Liu) . PARATYPES: 8♀, same data as holotype, genitalia slide no. IOZ-09030, wing slide no. IOZ-09031 ; 1♀, same locality as holotype, 30 VI 1980 (YQ Liu). All types examined are deposited in the Institute of Zoology , Chinese Academy of Sciences, Beijing, China .

Diagnosis. This new species is similar to the European species Euhyponomeutoidea albithoracellus Gaj, 1954 in forewing colouration, but can be distinguished from the latter by the orange head (white in E. albithoracellus ) and paler hindwing. Both species also have several differences in their female genitalia, including a unique modification of the lamella postvaginalis, broader ductus bursae and tubular corpus bursae in E. spadix .

Description. Head. Vertex rough with mixture of orange and orange-white piliform scales; frons grayish brown, tinged with orange marginally; compound eye with purplish luster. Antennae filiform, half as long as forewing; scape dark brown dorsally, pale gray ventrally, with dark brown pectens; flagellomeres gray with yellowish luster. Labial palpus porrect, obtuse apically, with no scale tufts, dark brown dorsally, pale gray intermixed with brown ventrally, brownish white terminally; second segment as long as third.

Thorax and abdomen. Patagium and tegula dark brown; mesonotum brownish white intermixed with orange, tinged with grayish brown near mesoscutellum. Fore-, mid- and hindleg dark brown dorsally, silvery brownish white ventrally. Forewing length 7.8–10.7 mm (n = 4), elongate, narrow, costa broadly curved, with narrowly rounded apex separating evenly between costal and dorsal area; background brown, tinged with reddish brown on dorsum; median line blurred, dark brown, oblique; caudal area of base tinged with orange-white; fringes brown, reddish brown around tornus. Hindwing gray, paler to base; fringes yellowish gray. Abdomen grayish orange dorsally, fuscous intermixed with whitish orange ventrally.

Female genitalia ( Figure 7 ). Papilla analis semielliptical, setose, longer than ninth abdominal segment; apophysis posterioris as long as apophysis anterioris; ventromedial area of intersegmental membrane between ninth and tenth segments emarginated; lamella postvaginalis subtriangular, setose. Ostium bursae surrounded with rectangular emargination; antrum long, cyathiform. Ductus bursae tubular, membranous, narrower near ostium, broadened to corpus. Corpus bursae elongate, as long as ductus bursae, slightly broadened to distal end.

Distribution. China (mid-south).

Etymology. The species epithet, spadix, is the Greek adjective meaning “chestnutcoloured” and refers to brown forewings of the new species.

Figures

Figures 5–8. (5) Adult of Euhyponomeutoides spadix Sohn and Wu, n. sp. Note: Scale bar = 5 mm, (6) Adult ofYponomeuta zebra Sohn and Wu, n. sp. Note: Scale bar = 5 mm, (7) Female genitalia of Euhyponomeutoides spadix Sohn and Wu, n. sp. Note: Scale bar = 1 mm, (8) Female genitalia Yponomeuta zebra Sohn and Wu, n. sp. Note: Scale bar = 2 mm.