Ulomorpha longipenis Kato & Kolcsar, 2020

Kato, Daichi, Watanabe, Kozo & Kolcsar, Levente-Peter, 2020, Synopsis of the genus Ulomorpha Osten Sacken, 1869 (Diptera, Limoniidae) in Japan, ZooKeys 999, pp. 147-163 : 147

Ulomorpha longipenis Kato & Kolcsar sp. nov. Figs 2 , 5B

Material examined.

Holotype ♂, pinned. Original label: "JAPAN, Hokkaido, Sapporo-shi, Minami-ku, Moiwashita, Mt Moiwa-yama; alt. 200 m; 43°0.84'N, 141°20.01'E; 23 Jun. 2014; D. Kato leg." "HOLOTYPE Ulomorpha longipenis Kato & Kolcsár, sp. nov. [red label]" (BLKU).

Paratypes. Japan, [Hokkaido] • 3♂; same data as holotype • 1♀; Hidaka-chô, Chisaka, tributary of Saru-gawa River; alt. 739 m; 42°58.39'N, 142°40.79'E; 28 Jul. 2019; L.-P. Kolcsár leg. (CKLP). [Honshu] • 1♀; Aomori, Nishimeya-mura, Kawaratai, Ôkawa Path; alt. 300 m; 40°30.04'N, 140°12.24'E; 30 Jun. 2013; D. Kato leg. (BLKU) • 3♂; Aomori, Towada-shi, Okuse, Tsutanuma Path; alt. 460 m; 40°35.45'N, 140°57.42'E; 1 Jun. 2014; D. Kato leg. (BLKU) • 1♂; same data as previous except 21 Jun. 2014 • 1♂; Niigata, Tôkamachi-shi, Matsunoyama-Amamizukoshi, Mt Amamizu-yama; alt. 920 m; 37°1.46'N, 138°33.77'E; 2 Aug. 2019; D. Kato leg. (BLKU) • 2♂; Aichi, Seto-shi, Iwaya-chô, near Iwayadô Park; alt. 300 m; 35°14.37'N, 137°9.05'E; 4 May 2016; D. Kato leg. (BLKU) • 1♀; Kyoto, Kibune; 35°7.29'N, 135°45.45'E (rough coordinate, altitude unknown);?.IV.1935; M. Tokunaga leg. (USNM). [Shikoku] • 1♂, 1♀; Ehime, Kumakôgen-chô, Chichinokawa; alt. 580 m; 33°36.29'N, 132°51.35'E; 19 May 2019; L.-P. Kolcsár leg. (CKLP) • 1♂; Ehime, Kumakôgen-chô, Hinoura; alt. 722 m; 33°35.13'N, 132°57.71'E; 19 May 2019; L.-P. Kolcsár leg. (CKLP) • 2♂; Ehime, Kumakôgen-chô, Nishidani, near Prefectural road 328; alt. 1430 m; 33°34'N, 132°56.2'E; 17 Jun. 2019; D. Kato leg. (BLKU) • 1♂; same data as previous except alt. 1387 m; 33°33.89'N, 132°56.1'E; L.-P. Kolcsár leg. (CKLP) • 1♀; same data as previous except alt. 890 m; 33°32.92'N, 132°56.88'E; L.-P. Kolcsár leg. (CKLP) • 2♂; Ehime, Kumakôgen-chô, Wakayama; alt. 930 m; 33°42.95'N, 132°6.5'E; 18 May 2019; L.-P. Kolcsár leg. (CKLP) • 1♂; Ehime, Matsuyama-shi, Jikibamachi; alt. 180 m; 33°51.69'N, 132°49.55'E; 16 May 2019; L.-P. Kolcsár leg. (CKLP) • 1♀; Ehime, Matsuyama-shi, Shukunomachi; alt. 240 m; 33°52.08'N, 132°50.09'E; 3 May 2019; L.-P. Kolcsár leg. (CKLP) • 1♀; Ehime, Matsuyama-shi, Yuyamayanagi; alt. 250 m; 33°53.41'N, 132°50.52'E; 3 May 2019; L.-P. Kolcsár leg. (CKLP) • 1♂, 1♀; Ehime, Saijô-shi, Nishinokawa-Tei, Mt Ishizuchi-san; alt. 1530 m; 33°45.29'N, 133°9.19'E; 16 Jun. 2019; D. Kato leg. (BLKU) • 1♂, 2♀; same data as previous except alt. 1480 m; 33°45.3'N, 133°9.23'E; 16 May 2019; L.-P. Kolcsár leg. (CKLP). [Kyushu] • 2♂, 2♀; Fukuoka, Fukuoka-shi, Jônan-ku, Katae, Mt Abura-yama; alt. 230 m; 33°31.83'N, 130°21.96'E; 19 Apr. 2014; D. Kato leg. (BLKU) • 1♂, 2♀; Fukuoka, Fukuoka-shi, Sawara-ku, Itaya, Mt Sefuri-san; alt. 970 m; 33°26.29'N, 130°22'E; 4 Jun. 2015; D. Kato leg. (BLKU) • 2♀; same data as previous except 10 Jun. 2015 • 2♀; same data as previous except 17 Jun. 2015 • 1♂; Fukuoka, Miyako-machi, Saigawa-Hobashira, Notȏge Pass; alt. 740 m; 33°29.74'N, 130°57.69'E; 12 May 2019; D. Kato leg. (BLKU) • 2♀; Fukuoka, Miyawaka-shi, Inunaki, Mt Inunaki-san; alt. 300 m; 33°40.87'N, 130°33.19'E; 5 May 2015; D. Kato leg. (BLKU) • 1♀; Saga, Kanzaki-shi, Sefuri-machi-Fukumaki; alt. 980 m; 33°26.04'N, 130°22.12'E; 23 May 2019; L.-P. Kolcsár leg. (CKLP) • 1♂; Saga, Saga-shi, Fuji-machi-Sekiya, Kase-gawa River near Hokuzan Dam; alt. 320 m; 33°25.99'N, 130°13.93'E; 23 May 2015; D. Kato leg. (BLKU) • 2♂; Miyazaki, Takachiho-chô, Gokasho, Mt Sobo-san, near Kitadani trailhead; alt. 1150 m; 32°49.36'N, 131°19.64'E; 22 May 2019; D. Kato leg. (BLKU).

Diagnosis.

Body blackish. Vertex sparsely pruinose, sometimes partly polished. Flagellomeres with basal 2-3 segments oval ventral sides with pubescences. Scutum sparsely pruinose or polished. Wing brownish tinged, with oval, dark-brown stigma and weakly dark seam on anterior part of cord. Halter yellowish. Interbase with outer lobe shorter than medial lobe in dorsal view; medial lobe medial to base of outer lobe about 2.3 times as long as wide. Aedeagus with rod-shaped distal part, 3.3-4.4 times as long as wide and almost straight.

Description.

Male. Body length 7.2-11.0 mm, wing length 7.1-11.9 mm.

Head: subnitidous black, sparsely dusted with gray pruinosity; vertex with brighter gray pruinosity at anterior end; anterior part of vertex sometimes largely shiny except anterior end or with shiny and small, longitudinally long bacilliform area at middle posterior to anterior brighter area. Rostrum and mouthparts dark brown. Antenna with scape and pedicel dark brown; flagellum dusky yellow to brown; basal 2-3 flagellomeres oval, covered with pubescences ventrally.

Thorax: subnitidous black, sparsely dusted with brownish pruinosity, sometimes polished and pruinosity absent on prescutum and most of scutal lobe; postpronotum yellowish or brownish. Wing (Fig. 2B ) tinged with brown; basal and costal regions proximal to cord yellowish; stigma oval, dark brown, with faint outline; veins dark brown, yellowish on Sc and basal part of wing; weakly dark seam on fork of Rs to crossvein r-m. Halter yellow to dusky yellow. Legs mainly yellow to dusky yellow; fore coxa dark on basal half, sometimes entirely so, mid and hind coxae sometimes narrowly dark at bases; femora narrowly dark at tips; dark area on fore femur often extending to near middle; tibiae narrowly dark at tips; tarsi weakly dark from tip of tarsomere 1 to apical segment.

Abdomen: subnitidous dark brown to black, sparsely covered with brownish pruinosity.

Male terminalia (Fig. 2C-G ): caudal margin of tergite 9 roundly produced at middle, with shallow U-shaped notch at center. Outer gonostylus in dorsal view (Fig. 2D ) with tip narrowed and curved anteriorly, concaved margin with distinct teeth. Interbase with outer lobe shorter than medial lobe in dorsal view (Fig. 2E ); outer lobe wide at base, inner basal end situated near middle of medial lobe (Fig. 2G ); medial lobe strongly narrowed distally, weakly sinuous, distal part medial to base of outer lobe about 2.3 times as long as wide (Fig. 2G ). Aedeagus with rod-shaped distal part, 3.3-4.4 times as long as wide and almost straight (Fig. 2E, F ), usually shorter in specimens from southern part of Japan.

Female. Body length 7.0-11.7 mm, wing length 6.2-10.2 mm. Generally resembling male.

Ovipositor: dark brown; yellow on cercus, hypogynial valve, and distal 1/4-1/3 of tergite 10; cercus 1.5 times as long as tergite 10.

Etymology.

The specific epithet is from the Latin longus/longi (long) + penis (penis) and refers to the long aedeagus of this species compared to the other Japanese species of the genus. The name is an adjective in nominative singular.

Distribution.

Japan (Hokkaido, Honshu, Shikoku, and Kyushu islands) (Fig. 5B ).

Remarks.

This species is similar to U. polytricha Alexander, 1930 but is differentiated from it by the following characters: wing with stigma distinctly dark, fork of Rs to crossvein r-m weakly darkened (Fig. 2B ) (stigma indistinct in U. polytricha ; Fig. 4C ); aedeagus with rod-shaped part more than three times as long as wide (Fig. 2F ) (twice as long as wide in in U. polytricha ; Fig. 4G ). This species also resembles a Nearctic species, U. nigronitida Alexander, 1920, according to the original description ( Alexander 1920b), but is distinguished from it by the following characters: antenna pale on flagellum, yellow to brown (black throughout in U. nigronitida ); coxae with distal parts yellowish (coxae brownish black, hind pair paler in U. nigronitida ); halter entirely yellowish (knob dark brownish black in U. nigronitida ).

Figures

Figure 2. Ulomorpha longipenis Kato & Kolcsar, sp. nov. A habitus, male B wing C male terminalia, dorsal view D tip of outer gonostylus, dorsal view E aedeagal complex, dorsal view F aedeagal complex, lateral view G interbase, posterodorsal view. Scale bars: 3 mm (A, B); 0.1 mm (C-G).

Figure 4. Ulomorpha polytricha Alexander, 1930. A habitus, male B basal part of antenna, lateral view C wing D male genitalia, dorsal view E tip of outer gonostylus, dorsal surface F aedeagal complex, dorsal view G aedeagal complex, lateral view H interbase, posterodorsal view. Scale bars: 3 mm (A, C); 0.1 mm (B, D-H).

Figure 5. Distribution map of Japanese species of Ulomorpha. A U. amamiana Kato & Kolcsar, sp. nov. (orange), U. nigricolor Alexander, 1924 (blue), U. polytricha Alexander, 1930 (green) B U. longipenis Kato & Kolcsar, sp. nov. (red).