Eudarcia longiphalla Roh & Byun, 2019

Roh, Seung Jin & Byun, Bong-Kyu, 2019, The Meessiidae (Lepidoptera: Tineoidea) of Korea, Florida Entomologist 102 (1), pp. 65-75 : 71-74

Eudarcia longiphalla Roh & Byun , sp. nov. ( Figs. 7 , 13, 14 , 19 , 23 )

DIAGNOSIS

Eudarcia longiphalla sp. nov. is externally similar to E. gwangneungensis sp. nov., but it can be distinguished by termen margin of forewing without light yellow hairs. The male genitalia are similar to E. prolongata Xiao & Li, 2009 , but differ from male genitalia in the shorter elongated uncus, and fairly wide uncus and tegumen part. Furthermore, the male genitalia differ from E. dentate Gaedike, 2000 and E. prolongata . The gnathos is very short and fused with middle of uncus and tegumen part; phallus is relatively slender and long. In addition, this species can be identified readily based on female genitalia; antrum well developed; ductus bursae without spines and very long, relatively small, and very sclerotized.

DESCRIPTION

Adult ( Figs. 7 , 23 ). Wingspan 10.2 to 10.8 mm. Coloration and vestiture: vertex of head roughly covered with short,light yellow hairs.Thoracic notum covered with shiny,dark brown scales.Forewing:ground color light grey and covered with dark brown scales, short brown hairs present on the termen, post-marginal corner of termen present with light grey hairs. Hindwing covered with light brown scales,post-marginal part present with brown hairs. Structure: head and compound eyes slightly small; ocelli absent. Mouthparts well developed, maxillary palpus and labial palpus covered with light brown scales. Antennae filiform, covered with light brown scales, longer than 4/5 of the forewing. Forewing: slightly narrow, L/W ratio 3.64, costa straight, termen straight or arched to posterior margin, discal cell 0.64 times as long as forewing; 7 separate and 2 forked veins originating at the discal cell ( Fig.23 ); accessory and intercalary cell absent; Sc reaching to 2/5 of the costa; Rs1 and Rs2 forked at 1/4 of the base; Rs3 and Rs4 forked at anterior margin of distal corner of discal cell; base of M weakly developed; M 1 and M 2 fused, M 1 + 2 and M 3 parallel; CuA 1 and CuA 2 originating at posterior margin of distal corner of discal cell; CuP slightly weak; basal part of 1A + 2A looped. Hindwing slightly narrow: L/W ratio 4.16;costa straight;Sc + R straight to 4/5 of the costa;Rs terminating at the apex; base of M weakly developed; M 1 and M 2 fused, M 1 + 2 and M 3 forked; CuP absent; CuA 1 and CuA 2 forked,1A + 2A weak;3A present but considerably weak. Legs: epiphysis present; covered with light brown hairs. Abdomen: covered with brown scales; corethrogyne absent.

Male genitalia ( Figs. 13, 14 ). Tegumen, vinculum, and uncus fused with slightly wide triangular shape; uncus very short, elongated, hooked; vinculum V-shaped; saccus elongated downward, slightly thick, 0.86 times as long as the height of the ring; valva wide; ampulla (apex of valva) rounded and apical part hooked; harp relatively short and blunt (lateral view); transtilla slender, slightly short and well developed; phallus long and slender, cylindrical, longer than 2.66 times the height of the ring, cornuti present with 2 spines.

Female genitalia ( Fig. 19 ). Ovipositor very long and narrow; papillae anales narrow, some short satae at apex; ostium bursae located at anterior margin of sternum VIII, slightly narrowed bell-shaped; apophyses posteriores very thin, 2.7 times longer than apophyses anteriores; basal part of apophyses anteriores thick and slightly short; antrum wide and well developed; ductus bursae narrow and very long; corpus bursae narrow and well sclerotized.

Larval case. Unknown.

TYPE MATERIAL

HOLOTYPE 1 male KOREA: Chungcheongbuk-do, Mungyeong-si, Mt. Sobaeksan , 37.825569°N, 128.379191°E, collected 17-VII-2001, legend unknown, male genitalia mounted on 60% euparal solution (genitalia no. KNAESJ00036 ), venation of wing slide no. KNAEVSJ6 ( NAS).

PARATYPES 4 females KOREA: Gangwon-do , Donghae-si, Mt. Dutasan, 37.274175°N, 129.904444°E,collected 16-VII-2001, J.Y.Choi, G.M. Kwon, H.W. Byun, female genitalia mounted on 60% euparal solution (genitalia no. KNAESJ00012 , KNAESJ00030 , KNAESJ00031 ), venation of wing slide no. KNAEVSJ7 ( NAS) ; 1 female KOREA: Chungcheongnam-do, Dangjin-gun , myeoncheon-eup, 36.817777°N, 126.666225°E, collected 11-VI-2016, S.J. Roh, B.S. Jeon, T. H. Yoo, female genitalia mounted on 60% euparal solution (genitalia no. KNAESJ00009 ) , DNA barcode Process ID KNAEM002-18 ( BOLD systems BIN. BOLD: ADL7238 ) (SEL/ HNU) .

DISTRIBUTION

Korea.

ETYMOLOGY

The specific name is derived from the Latin word longi (meaning “long”) and the Greek word phallus, referring to the male genitalia characters.

Figures

Figs.5-8. Adults:(5) Eudarcia orbiculidomus Sakai & Saigusa,male;(6) E.gwangneungensis sp.nov., female,paratype;(7) E.longiphalla sp. nov., female,paratype; (8) E. cornea sp. nov., female, paratype.

Figs. 9-16. Male genitalia:(9) Eudarcia orbiculidomus Sakai & Saigusa (genitalia no.KNAESJ00032),lateral view;(10) ditto, dorso-ventral view;(11) E. gwangneungensis sp. nov., holotype (genitalia no. KNAESJ00037),lateral view; (12) ditto,dorso-ventral view; (13) E. longiphalla sp. nov., holotype (genitalia no.KNAESJ00036), lateral view; (14) ditto, dorso-ventral view; (15) E. cornea sp. nov., paratype (genitalia no. KANES000J28),lateral view; (16) ditto, dorso-ventral view.

Figs. 17-20. Female genitalia: (17) Eudarcia orbiculidomus Sakai & Saigusa (genitalia no. KNAESJ00033); (18) E. gwangneungensis sp. nov., paratype (genitalia no. KNAESJ00035); (19) E. longiphalla sp. nov., paratype (genitalia no. KNAESJ00036); (20) E. cornea sp. nov., paratype (genitalia no. KANES000J29).

Figs. 21-24. Wing venation: (21) Eudarcia orbiculidomus Sakai & Saigusa (slide no. KNAEVSJ9); (22) E. gwangneungensis sp. nov., paratype (slide no. KNAEVSJ5); (23) E. longiphalla sp. nov., Holotype (slide no. KNAEVSJ6); (24) E. cornea sp. nov., paratype (slide no. KNAEVSJ8).