Revision of the subgenus Dicranomyia (Erostrata) Savchenko, 1976 (Diptera, Limoniidae) of Japan Kato, Daichi Tachi, Takuji Gelhaus, Jon Zootaxa 2018 2018-06-26 4441 1 181 194 8GZJV Kato & Tachi & Gelhaus, 2018 Kato & Tachi & Gelhaus 2018 [151,568,1555,1582] Insecta Limoniidae Dicranomyia GBIF Animalia Diptera 6 187 Arthropoda species submelas sp. nov. Erostrata     Specimensexamined: Holotypemale, JAPAN, Fukuoka, Fukuoka-shi, Sawara-ku, Itaya, Mt. Sefuri-san,  23.VIII, 2015, D. Kato( BLKU).  Paratypes: JAPAN: [ Honshu] 1 male, Tochigi, Nikko-shi,  8.IX.2011, D. Kato( BLKU);  1 male, Echigo( Niitaga), Kurokawa,  18.VIII.1954, K. Baba( USNM/ identified as  Limonia globulithoraxby Alexander);  1 male, Aichi, Sitara-chô, Tamine, Mt. Takanosu-yama,  17.VIII.2014, D. Kato( BLKU);  1 female, Gifu, Nakatsugawa-shi, Kashimo, Nishimata-dani Valley,  7.VIII.2015, D. Kato( BLKU);  1 female, Nara, Kamikitayama-mura, Nishihara,  23.VIII.2015, D. Kato( BLKU);  1 male, Tottori, Yazu-chô, Mt. Ôgino-sen,  17.IX.2014, D. Kato( BLKU);  1 male, Okayama, Maniwa-shi, Hiruzen-Shimotokuyama,  11.VIII.2015, D. Kato( BLKU);  1 male, Hiroshima, Hatsukaichi-shi, Yoshiwa, Mt. Misaka-yama,  2.IX.2015, D.  Kato( BLKU); [ Shikoku] 1 male, Tokushima, Miyoshi-shi, Higashiiya-Ochiai, near Matsuogawa Dam,  10.VIII.2015, D.  Kato( BLKU); [ Kyushu] 1 female, same data as holotype except  23.VIII.2015;  3 males, same data as previous except  5.IX.2015;  2 malessame data as previous except  15.IX.2015;  1 male, same data as previous except  27.VIII.2016;  1 male, Ôita, Taketa-shi, Imamizu-tozanguchi,  10.IX.2016, T. Mishima( BLKU);  1 male, Kumamoto, Yatsushiro-shi, Izumimachi-Momiki, Nigakobe-gawa River,  31.VII.2016, D. Kato( BLKU).   Diagnosis.General coloration ( Fig. 38) brown to dark brown. Head blackish; palpus ( Fig. 1) one segmented. Abdomen dark brown. Male genitalia ( Fig. 20) with tergite 9 produced posteriorly into a pair of rounded lobes; gonostylus strongly concaved on distal 1/3 of inner margin, with a row of strong setae along concaved margin. Ovipositor ( Figs. 23–25) with cercus weakly curved dorsally; hypogynial valve long, about 1.9 times as long as sternite 8; furca curled inward along lateral margins and long, extending far beyond base of cercus.   Description.Male. Body length 4.0– 5.2 mm. Wing length 4.6–5.8 mm.  Head.Dark brown to black; antenna ( Fig. 1) brown to dark brown, pedicel about as wide as basal flagellomeres, flagellum with distinct pale pubescence; palpus ( Fig. 1) oval, one segmented.  Thorax.Brown to dark brown, postpronotum on lateral sides and anepimeron near wing base weakly paler, antepronotum, pronotum, and anepisternum sometimes slightly darkened. Wing tinged with black. Legs dark brown, coxae, trochanters, and base of femora slightly paler. Halter dark brown.   FIGURES 20–25.Male genitalia and female ovipositor of  Dicranomyia( Erostrata) submelas  sp. nov.20: Male genitalia (paratype, Japan, Aichi) in dorsal view; 21: Internal structure of male genitalia in dorsal view; 22: Paramere of male genitalia in outer view; 23: Female ovipositor (paratype, Japan, Fukuoka) in lateral view; 24: Sternite 8 and hypogynial valve in ventral view; 25: Furca in ventral view. Scale bars = 0.1 mm.  Abdomen.Dark brown, sternite 7 with a long-conical, membranous internal sac on posterior end. Male genitalia ( Fig. 20) with tergite 9 squarish with rounded corners, bearing a pair of rounded lobes on posterior margin, each lobe separated by wide U- or V-shaped notch, disc on tergite 9 with a longitudinal internal ridge at middle; gonocoxite cylindrical, about as long as width of tergite 9, ventromesal lobe large and truncated at tip, about 1/4 as long as gonocoxite and about as long as width; gonostylus about as long as gonocoxite, widest at basal 2/3, distal 1/3 strongly concaved posteromesally with a row of strong setae along concaved margin, outer surface of gonostylus with a small protuberance bearing two setae near base; paramere ( Figs. 21–22) with mesal-apical lobe slender, curved dorsomedially and pointed at tip, with a ridge-like short extension near base of dorsal margin, lateral part of paramere strongly produced into ribbon-like plate, curled laterally and ventrally, the plate longer than 1/3 of width of paramere; aedeagus ( Fig. 21) cylindrical, narrowed near tip, tip bilobed and slightly widened, directed ventrally. Female. Body length 4.6–4.9 mm. Wing length 4.9–5.5 mm. Almost same as male except terminalia. Ovipositor ( Figs. 23–25) brown to dark brown; tergite 9 more acute on lateral angles than the other species; tergite 10 inlateral view narrow, about half height of tergite 8, tapered near tip, with two pairs of long setae on posterior margin; cercus longer than sternite 8, weakly curved dorsally on distal half, reaching at level of tip of hypogynial valve, ventral margin with weak setae on basal 1/3; sternite 8 roughly square with rounded corners, slightly longer than width, with a pair of distinct internal ridge; hypogynial valve long, about 1.9 times as long as sternite 8, tip subacute, basal part of the valve as high as tergite 10 inlateral view; furca long, about 2.3 as long as width, pointed at setigerous tip, extending far beyond base of cercus, lateral margin bent medially.   Distribution. Japan(Honshu, Shikoku, Kyushu ( Fig. 42)).   Etymology.The specific epithet refers to the similarity to a Taiwanese species,  D. melas.   Remarks.This species is somewhat similar to  D. globulithorax Alexander, 1924, but differing from it in the following characters: male genitalia with ventromesal lobe of gonocoxite stout and truncated at tip ( Fig. 20), while gradually narrowed and rounded at tip in  D. globulithorax; gonostylus emarginated on distal 1/3 of inner apical edge ( Fig. 20), while emarginated on distal 1/6 of inner apical edge in  D. globulithorax( Fig. 7); mesal-apical lobe of paramere with a ridge-like short extension along outer margin near base ( Fig. 22), while without a ridge-like short extension in  D. globulithorax(as in Fig. 6). In addition, another similar species,  D. melas, is differentiated from this species by the following characters: gonostylus more shallowly concaved at inner apical edge, the area 1/ 5 as long as gonostylus, with brush of shorter setae at tip, whereas apical 1/3 emarginated, with brush of longer setae at tip in this species ( Fig. 20)). 1851456495 23. VIII BLKU D. Kato Japan Specimens Mt. Sefuri-san Itaya 6 187 1 Fukuoka holotype 1851456540 [429,1410,1699,1724] 2011-09-08 BLKU D. Kato Japan Nikko-shi Honshu 6 187 1 1 Tochigi paratype 1851456497 1954-08-18 USNM K. Baba & Alexander Japan Echigo Kurokawa Niitaga 6 187 1 1 Tochigi paratype 1851456536 [295,1313,1771,1796] 2014-08-17 BLKU D. Kato Japan Sitara-cho Mt. Takanosu-yama Tamine 6 187 1 1 Aichi paratype 1851456604 2015-08-07 BLKU D. Kato Japan Nakatsugawa-shi Nishimata-dani Valley Kashimo 6 187 1 1 Gifu paratype 1851456500 2015-08-23 BLKU D. Kato Japan Nishihara Kamikitayama-mura 6 187 1 1 Nara paratype 1851456602 2014-09-17 BLKU D. Kato Japan Mt. Ogino-sen Yazu-cho 6 187 1 1 Tottori paratype 1851456535 2015-08-11 BLKU D. Kato Japan Hiruzen-Shimotokuyama Maniwa-shi 6 187 1 1 Okayama paratype 1851456542 [260,1143,1915,1940] 2015-09-02 Japan Hatsukaichi-shi Mt. Misaka-yama Yoshiwa 6 187 1 1 Hiroshima paratype 1851456395 2015-08-10 BLKU Japan Kato Miyoshi-shi Shikoku 6 187 1 1 Tokushima paratype 1851456391 2015-08-23 BLKU D. Kato Japan Specimens Kyushu Kato 6 187 1 1 Fukuoka paratype 1851456605 [865,1411,1987,2012] 2015-09-05 BLKU D. Kato Japan Specimens Kyushu Kato 6 187 3 3 Fukuoka paratype 1851456607 2015-09-15 BLKU D. Kato Japan Specimens 7 188 Kyushu Kato 6 187 2 2 Fukuoka paratype 1851456529 [702,1278,151,176] 2016-08-27 BLKU D. Kato Japan Specimens Kyushu Kato 7 188 1 1 Fukuoka paratype 1851456541 2016-09-10 BLKU T. Mishima Japan Imamizu-tozanguchi Taketa-shi 7 188 1 1 Oita paratype 1851456609 2016-07-31 BLKU D. Kato Japan Yatsushiro-shi Nigakobe-gawa River Izumimachi-Momiki 7 188 1 1 Kumamoto paratype