Austrolimnophila (Archilimnophila) subunicoides (Alexander, 1950)

Podenas, Sigitas, Park, Sun-Jae, Byun, Hye-Woo, Kim, A-Young, Klein, Terry A. & Aukštikalnienė, Heung-Chul Kim and Rasa, 2020, New data on Limoniinae and Limnophilinae crane flies (Diptera: Limoniidae) of Korea, Journal of Species Research 9 (4), pp. 492-531 : 500-501

Austrolimnophila (Archilimnophila) subunicoides

( Alexander, 1950b)

Archilimnophila subunicoides Alexander, 1950b: 428 . Austrolimnophila (Archilimnophila) subunicoides Savchenko, 1978: 378-379 ; 1989: 65.

General: Body coloration dark gray. Male body length 9.3 mm, wing length 9.1-10.4 mm.

Head: Dark gray, sparsely covered with dark brown erect setae. Vertex without tubercle. Eyes widely separat- ed in both sexes, distance between them at base of antennae exceeds length of scape. Antenna dark brown with yellowish base of first flagellomere, 2.4-3.0 mm long in male, extending to base of halter, if bent backward. Scape elongate, nearly cylindrical, twice as long as wide, pedicel widened distally. Flagellomeres elongate, narrower towards apex of antenna, densely covered with whitish pubescence. Apical segment slightly exceeds preceding segment in length. Verticils dark brown, longest verticils approximately as long as respective segments. Rostrum dark brown dorsally, brown laterally, densely dusted with gray. Palpus dark brown, mouth parts brown.

Thorax: Cervical sclerites dark brown densely dusted with gray. Pronotum gray. Mesonotal prescutum gray with four blackish stripes, medial pair narrowly separated with gray. Tubercular pits indistinct, pseudosutural fovea small. Scutal lobe gray with darker elongate spot closer to medial margin. Scutellum dark brown, densely dusted with gray, lateral and posterior margin narrowly obscure brownish yellow. Mediotergite brownish gray. Dorsopleural membrane yellowish brown. Pleuron gray, katepisternum slightly infuscated ventrally. Wing ( Fig. 3A ) iridescent with brownish tinge, darker spots surrounding base of Rs, along cord and distal margin of discal cell. Stigma distinct, dark brown, elongate. Veins brown, yellowish at wing base. Venation: Sc long, reaching wing margin at branching point of Rs, sc-r from before to beyond tip of Sc depending on specimen. Rs long, arched and sometimes short-spurred at base. Free end of R 1 very short, R 2 at the apex of R 1, far beyond branching point of R 2 + 3 and R 4. R 3 and R 4 diverging at wing margin, cell r 3 with long stem, which is approximately as long as discal cell. Cross-vein r-m distinct, at base of discal cell. Discal cell 2.3- 2.6 times as long as wide. Cross-vein m-cu at about one-third length of discal cell. Anal vein long, slightly arched at wing margin, apex at the level of Rs base. Anal angle long and narrow, widely rounded. Length of male halter 1.7 mm, stem obscure yellow, knob slightly darkened. The fore coxa blackish at base frontally, remainder obscure yellow, middle and posterior coxae obscure yellow with narrowly dark brown base. Trochanters yellow with darkened ventro-posterior margin. Forefemur brown with yellow base and dark brown distal part. Middle and posterior femur yellow turning narrowly dark brown towards apex. Tibia brown with dark brown apex. Tarsomeres dark brown with base of first tarsomere brown. Tibia of foreleg with single apical spur, tibiae of middle and hind pairs of legs with two apical spurs each. Male femur I: 5.6 mm long, II: 5.8 mm, III: 6.3-6.4 mm, tibia I: 6.5 mm, II: 6.25 mm, III: 7.0- 8.5 mm, tarsus I: 7.3 mm, II: 6.5 mm, III: 6.0 mm. Claw simple, spineless.

Abdomen: Abdominal segments dark brown to blackish, covered with dense gray pruinosity, sparsely setose. Tergites with paired transverse sutures slightly before middle of sclerite. Male terminalia ( Fig. 3B ) concolorous with the rest of abdomen. Ninth tergite ( Fig. 3C ) wider than longer, posterior margin with four lobes, medial lobes low and wide, separated by wide but shallow V-shaped emargination, lateral lobe small with narrow, finger-shaped apical part, which is at right angle to the rest of the lobe and turned inwards. Gonocoxite elongate with large ventro-mesal blunt-apexed lobe. Outer gonostylus short and strongly curved with subacute apex. Inner gonostylus small and rough, bearing long, narrow slightly arched yellow rostral lobe. Paramere long rod-shaped, strongly curved. Left and right parameres asymmetrical. Aedeagus short and straight.

Elevation range in Korea: From 1100 to 1400 m.

Period of activity in Korea: Beginning of June.

Habitats: Unknown.

General distribution: Northern part of Korean Peninsula, Mongolia, and Eastern part of Russia.

Examined material ( Fig. 16C ): holotype, male (head, hind leg, wing and terminalia slide mounted), North Korea, Kankyo Nando, Puksu Pyaksan , alt. 4000 ft. [1230 m], 1939.06.05, A. Y. Yankovsky ( USNM) ; paratype, male (two legs, wing and terminalia slide mounted), North Korea, Kankyo Nando, Puksu Pyaksan , alt. 4500 ft. [1385 m], 1939.06.04, A. Y. Yankovsky ( USNM) . Also compared with: 1 male (pinned), Mongolia, Tov Aimag, Erdene Soum, Gorkhi Terelj National Park , stream 0.5 km N of Gorkhi Davaa (Pass), N 47.94981 E 107.45511, elev. 1593 m, 2011.07.11, coll. S. Podenas, MAIS 2011071101 ( ANSP) .

Figures

Fig. 3. Austrolimnophila (Archilimnophila) subunicoides (Alexan- der, 1950), holotype, male.A. wing. B. male genitalia, dorsal view. C. ninth tergite. Scale bars: 0.5mm.

Fig. 16. Distribution maps of Korean Limoniidae crane flies.A. Dicranomyia (Erostrata) submelas. B. Dicranoptycha venosa. C. Austrolimnophila(Archilimnophila) subunicoides. D. A.(A.) unica. E. A.(Austrolimnophila) asiatica. F. Conosia irrorata. G. Dicranophragma (Brachylimnophila) transitorium. H. D.(Dicranophragma) melaleucum melaleucum. I. Eloeophila persalsa. J. E. serenensis. K. E. subaprilina. L. E. ussuriana ussuriana. M. E. yezoensis. N. Paradelphomyia chosenica. O. P. macracantha.