Paradelphomyia macracantha Alexander, 1957

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 : 527-529

Paradelphomyia macracantha Alexander, 1957

Paradelphomyia (Oxyrhiza) macracantha Alexander, 1957: 357-358 .

Paradelphomyia macracantha Oosterbroek, 2020 .

General: Body coloration yellow. Body length of female 4.2-5.2 mm, wing length 4.3-5.1 mm.

Head: Yellow with brownish vertex. Eyes widely separated, distance between them at base of antennae about three times exceeds length of scape. Antenna ( Fig. 15A ) 1.0- 1.1 mm long in female, extending to wing base if bent backward. Scape yellow, elongate, nearly cylindrical, about 1.5 times as long as wide, pedicel dark brown, slightly widening distally, about two-thirds as long as scape. Flagellum dark brown. Basal flagellomeres oval, remaining elongate. Apical segment nearly as long as preceding. Verticils dark brown, longest up to 1.5 times as long as respective segments. Rostrum pale yellow, palpus dark brown, mouth parts brownish yellow.

Thorax: Cervical sclerites pale yellow. Pronotum yellow, dorsally infuscated with brown, with few erect setae postero-laterally. Mesonotal prescutum yellow, testaceous frontally, without stripes. Tubercular pits indistinct, pseudosutural fovea concolorous with prescutum. Scutal lobe same color as prescutum, area between lobes pale. Scutellum yellow, mediotergite brownish yellow. Pleuron uniformly yellow, vaguely patterned with brownish at wing base. Wing ( Fig. 15B ) brownish, yellowish at base. No other darkenings except stigma, which is also indistinct, pale-brown. Veins brownish, yellowish at wing base. Macrotrichiae more abundant in radial cells, they are present in other marginal cells along postero-apical wing margin. Venation: Sc long, reaching branching point of Rs, sc-r long distance from tip of Sc, slightly before middle of Rs. Rs long, arched at base. Free end of R 1 longitudinal, slightly arched, R 2 distinct, transverse, slightly beyond base of cell r 3. R 3 and R 4 diverging towards wing margin, cell r 3 with stem which 2.3 times as long as R 2. Cross-vein r-m distinct, at base of discal cell. Discal cell long and narrow, nearly three times as long as wide. Position of cross-vein m-cu variable: two Korean specimens with m-cu nearly at the middle of discal cell, like in holotype, one specimen with m-cu much closer to the base of discal cell. Anal vein long, slightly arched at apex, reaching wing margin slightly beyond the level of Rs base. Anal angle narrow, widely rounded. Halter pale yellow at base, weakly infuscated towards knob. Length of female halter 0.6-0.9 mm. Coxae and trochanters yellow, forecoxa testaceous frontally and dorsally. Remainder of legs testaceous yellow. Tibial spurs long.

Abdomen: Tergites brown, covered with sparse brown setae. Sternites yellowish brown. Ovipositor ( Fig. 15C ) yellow, cercus elongate, point-apexed, distal half slightly raised upwards. Hypovalva long, straight, narrower towards apex, reaching to about middle of cercus.

Elevation: From nearly 450 to 500 m.

Period of activity: From beginning of June through mid July.

Habitats: Small to medium-sized mountainous streams and rivers densely covered with deciduous shrubs, trees and dense grassy vegetation along margin. Adults are attracted to light.

General distribution: Specimens were described and previously known only from Honshu Island, Japan.

Examined material ( Fig. 16O ): holotype (as P. (Oxyrhiza) macracantha ), male (leg, wing and genitalia slide-mount- ed), Japan, Honshu, Kami-Ishikawa, Echigo, 1954.06.27, H. Koike ( USNM) ; 1 female (in EtOH), S. Korea, Gangwon-do, Goseong-gun, Ganseong-eup , Jinbu-ri , N 38. 26678, E 128.35706, alt. 497 m, 2015.07.08 (1), coll. S. Kim, S. Podenas ( NIBR) ; 1 female (in EtOH), S. Korea, Jeollanam-do, Gurye-gun, Toji-myeon, Naeseo-ri , Piagol valley , N 35.27177, E 127.57146, alt. 490 m, 2016.06.03 (2), coll. S. Podenas ( NIBR) ; 1 female (in EtOH), S. Korea, Jeollanam-do, Gurye-gun, Toji-myeon, Naeseo-ri , Piagol valley , N 35.26586, E 127.58090, alt. 448 m, 2016.06.03 (4), coll. S. Podenas, at light ( NIBR) .

Figures

Fig. 15. Paradelphomyia macracantha Alexander, 1957. A. female antenna. B. wing. C. ovipositor, lateral view.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.