Tipula (Vestiplex) kuwayamai Alexander, 1921

Starkevich, Pavel, Podėnas, Sigitas, Podėnienė, Virginija, Park, Sun-Jae & Kim, A-Young, 2021, Tipula (Vestiplex) crane flies (Diptera, Tipulidae) of Korea, ZooKeys 1061, pp. 23-55 : 23

Tipula (Vestiplex) kuwayamai Alexander, 1921

Figs 16-26 , 27-29 , 87

Tipula kuwayamai Alexander 1921: 130; 1925: 93.

Tipula (Vestiplex) kuwayamai : Alexander 1934: 405; 1935: 118; Savchenko 1964: 179; Oosterbroek and Theowald 1992: 156.

Type material examined.

Holotype, male, JAPAN, Maruyama, Sapporo, 1 June 1919, Kuwayama (USNM).

Other examined material

(Fig. 87 ). NORTH KOREA, 4 males, Ompo , 23 May 1937, Yankovsky (USNM) ; 1 female, alt. 500 ft, 2 May 1938, Yankovsky (USNM); 1 male, alt. 400 ft, 10 May 1938, Yankovsky (USNM); 1 male, Chonsani , alt. 4900 ft, 2 June 1940, Yankovsky (USNM) ; 1 female, alt. 3500 ft, 13 June 1940, Yankovsky (USNM). SOUTH KOREA, 1 male, #8, Central National Forest , 18 miles NE of Seoul, 28 May 1954, G.W. Byers (SEM) ; 1 male, Gyeongi-do, Pocheon-si, Soheul-eup , Gwangneung Forest , 30 May 1961, Gyeong-suk Jeon (KU) ; 1 female, Chungcheonnam-do, Danyang-gun, Danyang-eup , Mt Sobaeksan , 6 June 1981, K-S Lee (KU) ; 1 female, Gyeonggi-do, Seongnam-si, Sangjeok-dong, Mt Cheongyesan , 4 May1984, In-suk Hyeon (KU) ; 1 female, Gyeonggi-do, Namyangju-si, Hwado-eup, Mt Cheonmasan , 20 May 1984, Yeong-cheol Heo (KU) ; 1 male, 3 females, Geochang-gun, Gajo-myeon, Suwol-ri , Mt Bigye , Gogyeonsa , 6-7 May 2000, S.B. Jeong, IN0000297019, IN0000297023, IN0000296935, IN0000297021 (NIBR) ; 1 female, S.H. Baek, IN0000296936 (NIBR); 1 female, J.S. Choi, IN0000297020 (NIBR); 1 female, Ulju-gun, Sangbuk-myeon, Doekhyeon-ri , Mt Gaji , Helkijang , 18-19 May 2001, Y.S. Kim, IN0000226477 (NIBR) . CHINA, 1 male, Heilongjiang Province, Hsiaoling , 20 May 1938, leg. Weymarn (USNM) ; 6 males, 2 females, Heilongjiang Province, Maoershan , 8 June 1941, [collector not designated] (USNM) ; 1 female, 11 June 1941 (USNM); 1 male, 13 June 1941 (USNM); 1 female, 14 June 1941 (USNM); 1 female, 16 June 1941 (USNM); 1 male, Jilin Province, Yablonia Station [Yabuli], 26 May 1939, [collector not designated] (USNM) .

Diagnosis.

Tipula (V.) kuwaymai can be recognized by the unarmed gonocoxite and by the ninth tergite forming a sclerotized, oval saucer which has an elevated edge anteriorly and is yellow posteriorly with the posterolateral angle blade-shaped. The wing is distinctly patterned with brown. The female has the cercus brownish yellow with the tip narrowed and upturned, and the ventral margin has distinct serration. The hypovalva is filamentous. The median incision between hypovalvae is slightly deeper than posterior margin of eighth sternite.

Male. Body length 17.8-19.7 mm, wing length 19.8-22.9 mm. General body coloration brownish yellow.

Head. Vertex and occiput gray with brown median line. Rostrum dark brown, dorsally dusted with gray. Nasus small, almost lacking. Antenna 13-segmented, if bent backward extending beyond the wing base. Scape and pedicel reddish yellow, flagellum dark brown. Each flagellomere except first one with distinct basal enlargement and incision. Apical flagellomere small, reduced. Verticils longer than corresponding segments. Palpus dark brown.

Thorax. Pronotum gray with brown median line. Prescutum and presutural scutum gray. Median stripes anteriorly gray, posteriorly brown, bordered by darker brown, fused at base. Lateral stripes blackish gray, bordered by brown. Postsutural scutum blackish gray; each lobe with light brown spot bordered by brown. Scutellum and postnotum brownish, dusted with gray, each with brown median line. Pleura brownish, dusted with gray. Wing distinctly patterned with brown. Halter pale with brown knob. Coxa gray; trochanter yellow; femur brownish yellow with tip dark brown; tibia and tarsal segments brown. Tarsal claw with tooth.

Abdomen. Brownish yellow. First tergite laterally brown, dorsally yellow, tergites 2-5 yellow with pale and interrupted dorsal stripe. Tergites 6-9 brown, without median stripe. Lateral stripe distinct. First sternite yellow, sternites 2-6 yellow; remaining sternites dark brown.

Hypopygium. Dark brown (Fig. 16 ). Ninth tergite forming concave sclerotized saucer (Fig. 17 ). Central part of tergal saucer brownish, in the shape of an oval, concave, transverse plate, anteriorly with elevated edge, laterally and posteriorly with blackened, medially interrupted rim. Posterior part of tergal saucer yellow, posterolateral angle blade-shaped, with blackened ridge connecting with central part of tergal saucer. Gonocoxite narrow, unarmed (Fig. 18 ). Outer gonostylus club-shaped (Fig. 19 ). Inner gonostylus in the shape of a curved plate, bidentate at apex, dorsally with acute tooth, beak claw-shaped (Fig. 20 ). Gonocoxal fragment with medial sclerites slender, fused at base; lateral parts apically flattened (Fig. 46 ). Lateral sclerite relatively small, nearly V-shaped. Adminiculum semi-open, nearly triangular in lateral view (Fig. 22 ), flattened and broadened at base in ventral view (Fig. 23 ). Semen pump with swollen central vesicle (Figs 24 , 25 ). Compressor apodeme with broad and round median incision, forming a 75° angle with posterior immovable apodeme. Posterior immovable apodeme much longer than compressor apodeme, flattened, with acute tip. Anterior immovable apodeme narrow, rounded. Intromittent organ tube-shaped, about five times as long as semen pump, basally and medially brown but passing into brownish yellow towards apex. Distal part yellow, funnel-shaped (Fig. 26 ).

Female. Body length 27.4-34.4 mm, wing length 24.5-26.1 mm. Generally similar to male. Antenna with four basal segments yellow; remaining flagellomeres bicolored.

Female terminalia. Tenth tergite shining-brownish. Cercus brownish yellow, as long as tenth tergite, with tip narrowed and upturned, ventral margin with distinct serration (Fig. 27 ). Hypovalva filamentous, distally pale, with short trichia at tip (Fig. 28 ). Median incision between hypovalvae slightly deeper than posterior margin of eighth sternite. Lateral incision scarcely outlined, posterior margin with fine additional projection. Lateral angle of eighth sternite rectangular. Ninth sternite posteriorly with split tip (Fig. 29 ). Furca in the shape of narrow stripe (Fig. 29 ). Spermatheca spherical (Fig. 29 ).

Known distribution.

Russia, Japan China (Oosterbroek, 2019) and North and South Korea. Recorded here for the first time from the Korean Peninsula.

Figures

Figures 16 - 26. Male terminalia of T. (Vestiplex) kuwayamai 16 hypopygium, lateral view 17 ninth tergite, dorsal view 18 left gonocoxite, lateral view 19 left outer gonostylus 20 left inner gonostylus, lateral view 21 gonocoxal fragment, dorsal view 22 adminiculum, lateral view 23 adminiculum, ventral view 24 semen pump, dorsal view 25 semen pump and intromittent organ, lateral view 26 distal part of intromittent organ, lateral view. Abbreviations: ig, inner gonostylus; ls, lateral sclerite of gonocoxal fragment; ms, medial sclerite of gonocoxal fragment; og, outer gonostylus; t 9, ninth tergite. Scale bars: 0.7 mm (16); 0.5 mm (17 - 25); 0.25 mm (26).

Figures 27 - 29. Female terminalia of T. (Vestiplex) kuwayamai 27 ovipositor, left lateral view 28 eighth sternite with hypovalvae, ventral view 29 ninth sternite with furca, Tipula bursa copulatrix and spermathecae, dorsal view. Abbreviations: bc, Tipula bursa copulatrix; f, furca; s 9, ninth sternite; sp, spermatheca. Scale bars: 0.8 mm (27); 0.5 mm (28 - 29).

Figures 86 - 90. Collecting sites of T. (Vestiplex) in Korean Peninsula 86 T. (V.) coquillettiana 87 T. (V.) kuwayamai 88 T. (V.) serricauda 89 T. (V.) tchukchi 90 T. (V.) verecunda.

Figures 42 - 46. Larva of T. (Vestiplex) serricauda 42 general view, dorsal aspect 43 general view, lateral aspect 44 general view ventral aspect 45 general view of head capsule, dorsal aspect 46 general view of head capsule, ventral aspect. Scale bars: 5 mm (42 - 44); 1 mm (45 - 46).