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Кавказский энтомол. бюллетень 11(1): 205–209 © CAUCASIAN ENTOMOLOGICAL BULL. 2015
1Voronezh State University, Universitetskaya sq., 1, Voronezh 394006 Russia. E-mail: negrobov@list.ru
2Osaka Museum of Natural History, 1-23, Nagai Park, Higashi-sumiyoshi, Osaka 546-0034, 658-0025 Japan. E-mail: pseudocampsicnemus@ gmail.com.
3Dipterist’s Club of Japan, 29-13-101, Motogou, 1-chome, Kawaguchi, Saitama 332-0011 Japan. E-mail: tago-ke@za2.so-net.ne.jp
4Voronezh State Pedagogical University, Lenin str., 86, Voronezh 394043 Russia
1Воронежский государственный университет, Университетская пл., 1., Воронеж 394006 Россия
2Осакский музей природной истории, Осака 546-0034, 658-0025 Япония
3Клуб диптерологов Японии, Мотогоу, Кавагухи, Саитама 332-0011 Япония
4Воронежский государственный педагогический университет, ул. Ленина, 86, Россия
Key words: Diptera, Dolichopodidae, Dolichopus, Japan, new species.
Ключевые слова: Diptera, Dolichopodidae, Dolichopus, Япония, новые виды.
Abstract. Three new species of the genus Dolichopus:
D. ibarakiensis Negrobov, Kumazawa, Tago, sp. n.,
D. tokyoensis Negrobov, Kumazawa, Tago, sp. n. and
D. vicfursovi Negrobov, Kumazawa, Tago, sp. n. are described from Japan. New species are close to Dolichopus smirnovianus, and can be distinguished from the latter by the following characters: wing stigma elongate and well- developed, hind basitarsus mostly yellow, with 3 strong setae and different morphology of hypopygium.
Резюме. Описано 3 новых вида рода Dolichopus:
D. ibarakiensis Negrobov, Kumazawa, Tago, sp. n.,
D. tokyoensis Negrobov, Kumazawa, Tago, sp. n. и
D. vicfursovi Negrobov, Kumazawa, Tago, sp. n. из Японии. Новые виды близки к Dolichopus smirnovianus, от которого отличаются удлиненной и хорошо развитой стигмой крыла, в большей части желтыми задними базитарсусами с 3 крепкими щетинками и структурой гипопигия.
The genus Dolichopus Latreille, 1796 is the largest genus of Dolichopodidae with more than 600 species worldwide [Yang et al., 2006]. No revision of the genus in the Palearctic Region has been published since the monograph of Stackelberg [1930]. Negrobov et al. [2005] published the latest key to males of Palaearctic species of Dolichopus.
In Japan 10 species of the genus were previously known: Dolichopus bigeniculatus Parent, 1926,
D. crassicosta Parent, 1926, D. gubernator Parent, 1926,
D. kuznezovi Negrobov et al., 2012, D. mediovenus Negrobov, 1977, D. nitidus Fallen, 1823, D. plumipes (Scopoli, 1763), D. ptenopedilus Meuffels, 1982, D. satoi Negrobov, Fursov et Selivanova, 2014, D. triangularis Smirnov, 1948 [Parent, 1926; Stackelberg, 1930; Saigusa,
2008; Tago, 2010; Maslova et al., 2012, 2014; Masunaga, 2014; Negrobov et al., 2014a, b].
The material for this study was collected by T. Tago in 2010 and 2011 from Saitama and Ibaraki Prefectures, and Tokyo Metropolis (Japan). We also investigated the collections of the Osaka Museum of Natural History (Japan) and the Schmalhausen Institute of Zoology of National Academy of Sciences of Ukraine (Kiev, Ukraine).
Holotypes and paratypes of new species are deposited in the Osaka Museum of Natural History (OMNH) and the Schmalhausen Institute of Zoology of National Academy of Sciences of Ukraine (IZU), some paratypes are deposited in the collections of the Zoological Institute of the Russian Academy of Sciences (ZIN, St. Petersburg, Russia) and Voronezh State University (VSU, Voronezh, Russia).
Dolichopus ibarakiensis Negrobov, Kumazawa et Tago,
(Figs 1, 4–6)
Material. Holotype, ♂: Japan, Ibaraki Pref., Tsuchiura City, Shishizuka-Ooike, 18.09.2011, leg. T. Tago (OMNH). Paratypes: 3♂, 4♀, at the same locality (OMNH, 2♂, 1♀ VSU).
Diagnosis. Face light yellow. Antenna yellow, apical part of postpedicel dark. Postocular bristles in ventral part of head light yellow. Legs yellow, apex of fore and mid tarsi and hind tarsomeres 2–5 dark, apex of hind tibia and hind basitarsus dark. Tarsomere of fore and mid legs simple. Fore tibia without apicoventral seta. Hind femur without long ventral seta. Wing finely infuscate, especially in the front, M1+2 with rudiment of M2.
3.4–3.9 mm. Head. Face light yellow, without hairs, not reaching lower margin of eyes, its width in middle approximately equal to width of postpedicel (1 : 1.1). Proboscis dark-brown. Palpus
Figs 1–3. Habitus of Dolichopus species.
Рис. 1–3. Виды рода Dolichopus, внешний вид.
1 – Dolichopus ibarakiensis sp. n.; 2 – Dolichopus tokyoensis sp. n.; 3 – Dolichopus vicfursovi sp. n.
yellow with black bristles and yellow hairs. Frons shining green with grey pollination along margins. Antenna yellow, apical part of postpedicel dark. Postpedicel reniform with pointed apex, longer than wide. Stylus located in middle part of postpedicel, with very short hairs. Ratio of postpedicel length to its width to stylus length
1.4 : 1.1 : 3.8. Postocular bristles in ventral part of head light yellow, on upper part of head black.
Thorax green with bronze shade, pleura grey pollinose, with bronze spots. Mesonotum shining metallic. Proepisternum with black seta and white hairs. 6 strong dorsocentral bristles. Acrostichal setae well developed. Scutellum with 2 strong, 2 small black marginal bristles and with small hairs. Legs. Coxae with black seta and hairs. Middle and hind coxae dark, yellow at apex, with
Dolichopus tokyoensis Negrobov, Kumazawa et Tago,
(Figs 2, 7–9)
Material. Holotype, ♂: Japan, Tokyo, Katsushika ward, Mizumoto, 18.04.2010, leg. T. Tago (OMNH). Paratypes: 5♂, at the same locality, 18.04.2010, 21.08.2010, 17.10.2010, leg. T. Tago (OMNH, 2♂ VSU).
apicoventral seta. Hind femur without long ventral seta.
black setae and hairs. Legs yellow, apex of front and mid tarsus
Wings finely infuscate anteriorly, M with rudiment of M .
and 2–5 segments of hind tarsus dark, apex of hind tibia and hind basitarsus dark, pulvilli white. Tarsomeres of fore and mid legs simple. Fore femur without strong seta and long hairs. Fore tibia without apicoventral seta, with 2 anterodorsal, 2 posterodorsal and 1 posteroventral setae. Length ratio of fore tibia and tarsus (from 1st to 5th): 6.6 : 3.3 : 1.4 : 1.1 : 0.6 : 0.5. Mid femur with 1 strong preapical bristle. Mid tibia with 4 anterodorsal, 2 posterodorsal and 1 posteroventral setae. Mid basitarsus without strong setae on the ventral side and with few small bristles. Length ratio of mid tibia and tarsus (from 1st to 5th): 7.5 : 4.6 : 2.5 : 1.8 : 1.1 : 0.9. Hind femur without long ventral seta, with 1 strong preapical seta. Hind tibia with 4 anterodorsal and 4 posterodorsal strong setae, 1 anteroventral seta and short ventral seta. Hind basitarsus with 3 strong setae. Length ratio of hind tibia and tarsus (from 1st to 5th):
9.8 : 4.3 : 4.3 : 2.9 : 2 : 1.1. Wing finely infuscate anteriorly, with elongate thickening on costal vein near apex of subcostal vein. R4+5 and M1+2 parallel at apex. M1+2 with rudiment of M2. Ratio of part of costa between R2+3 and R4+5 and that between R4+5 and M1+2
3.4 : 1.6. Apical part of CuA1 longer than dm-cu – 3.4 : 2. Anal angle
obtuse. Lower calypter yellow with black hairs. Halter yellow.
Abdomen shining green with bronze stripes along margins of segments, covered with black setae dorsally, sides with white pollen. Hypopygium black. Epandrium brown, oblong-oval with long appendage at base and straight top. Hypandrium on the left side with long sharp appendage. Apicoventral epandrial lobe yellow, broad, oblong-oval, with 2 bristles at apex. Cerci oval, yellow, with wide black border at apex, with serrated margin and sickle-shaped setae. Phallus on ventral side with tooth.
Female. Face whitish grey, wider than that in male. Ratio of
postpedicel length to its width to face length 1 : 1.5 : 3.8. Wing with simple costal vein.
2.7 mm. Head. Frons shining green with a purple tint with grey pollination along the edges. Face silvery-white, without hairs, not reaching lower margin of eyes, its width in middle approximately equal to width of postpedicel. Proboscis dark-brown. Palpus yellow with black seta and hairs. Antenna yellow, 2/3 of apical part of postpedicel dark. Postpedicel reniform with pointed apex, longer than wide. Stylus located closer to apex of postpedicel, with very short hairs. Ratio of postpedicel length to its width to stylus length 1 : 0.8 : 2.6. Postocular bristles in ventral part of head light yellow, on upper part of head black.
Thorax green with bronze shade, pleura grey pollinose.
Mesonotum shining metallic. Proepisternum with black seta and white hairs. 6 strong dorsocentral bristles. Acrostichal setae well developed. Scutellum with black 2 strong, 2 small marginal bristles and with small hairs. Middle and hind coxae dark, yellow at apex, with black seta and hairs. Legs yellow, apex of hind tibia, apex of fore and mid tarsi, apex of hind basitarsus, and 2–5 segments of hind tarsus dark, pulvilli white. Tarsomeres of fore and mid legs simple. Mid and hind femora with 1 strong preapical bristle. Fore femur without strong seta and long hairs. Fore tibia without apicoventral seta, with 2 anterodorsal, 2 posterodorsal and 1 posteroventral setae. Length ratio of fore tibia and tarsus (from 1st to 5th): 4.5 : 1.8 :
0.9 : 0.6 : 0.5 : 0.6. Mid tibia with 2–3 anterodorsal, 1 dorsal,
2 posterodorsal and 1 ventral setae. Mid basitarsus without strong setae on the ventral side and with few small bristles. Length ratio of mid tibia and tarsus (from 1st to 5th): 6.2 : 3.3 : 1.6 : 1.4 : 1 : 0.8. Hind femur without long ventral seta, with 1 strong preapical seta. Hind tibia with 5 anterodorsal, 5 posterodorsal strong setae, 1 ventral seta and short ventral seta. Hind basitarsus with 3 strong setae. Length ratio of hind tibia and tarsus (from 1st to 5th): 9.4 : 3 : 3.4 :
2.1 : 1.7 : 1.2. Wing finely infuscate anteriorly, with well-developed
_34_Negrobov_Kumazawa_Tago_Maslova/Image_002.gif)
Figs 4–6. Dolichopus ibarakiensis sp. n.
4 – hypopygium, lateral view; 5 – surstylus, lateral view; 6 – tip of sickle-shaped setae of cerci. Рис. 4–6. Dolichopus ibarakiensis sp. n.
4 – гипопигий, вид сбоку; 5 – сурстили, вид сбоку; 6 – вершины серповидных щетинок церок.
elongate thickening on costal vein near apex of subcostal vein. R4+5 and M1+2 convergent at apex. M1+2 with rudiment of M2. Ratio of part of costa between R2+3 and R4+5 and that between R4+5 and M1+2 2.1 : 0.9. Apical part of CuA1 longer than dm-cu – 2.8 : 1.6. Anal angle obtuse. Lower calypter yellow with black hairs. Halter yellow.
Abdomen shining green with bronze stripes along margins of segments, covered with black setae dorsally. Epandrium brown, oblong-oval with long wedge-shaped appendage at base. Apicoventral epandrial lobe yellow, broad, triangular in shape, with pointed apex on dorsal side, with strong seta on top. Phallus on top with short ventral tooth. Cerci oval, yellow, with wide black border at apex, with serrated margin and sickle-shaped setae.
Female unknown.
Dolichopus vicfursovi Negrobov, Kumazawa et Tago, sp. n.
(Figs 3, 10–11)
Material. Holotype, ♂: Japan, Honshu, Ibaraki Pref., Tsukuba, Sakuragaoka, 5.05.1997, leg. V. Fursov (ZIN). Paratypes: 4♂, 1♀, Japan, Honshu, Ibaraki Pref., Tsukuba, Sakuragaoka, 5.05.1997, leg. V. Fursov; 1♂, Japan, Honshu, Ibaraki Pref., Tsukuba, Sakuragaoka, Kukisaki- machi, 19.04.1997, leg. V. Fursov; 1♂, Japan, Honshu, Aichi Pref., Nagoya, Shiogama-guchi, Tenpaku-ru, 29.05.1999, leg. V. Fursov; 1♂, Japan, Honshu, Aichi Pref., Nagoya, Nagakute-cho Park, 13.06.1999, leg. V. Fursov; 10♂, 2♀, Japan, Saitama Pref., Misato City, Edogawa River bank, 21, 24, 29.07.2011, leg. T. Tago (ZIN, OMNH and VSU).
middle tarsus and 2–5 segments of hind tarsus dark. Tarsomere of fore and mid legs not expanded. Fore tibia without apicoventral seta. Hind femur without long ventral seta. Wing finely infuscate, at top with dark spot, M1+2 with rudiment of M2.
3.2–3.4 mm. Head. Face silvery-white, without hairs, not reaching lower margin of eyes, its width in middle approximately equal to width of postpedicel. Proboscis dark-brown. Palpus yellow with black seta and hairs. Frons shining green with purple tint and grey pollination along margins. Antenna yellow, 2/3 of apical part of postpedicel dark. Postpedicel reniform with pointed apex, longer than wide. Stylus located in middle part of postpedicel, with very short hairs. Ratio of postpedicel length to its width to stylus length
1.6 : 1 : 3.6. Postocular bristles in ventral part of head light yellow, on upper part of head black.
Thorax green with bronze shade, pleura grey pollinose, with bronze spots. Mesonotum shining metallic. Proepisternum with black seta and white hairs. 6 strong dorsocentral bristles. Acrostichal setae well developed. Scutellum with 2 strong, 2 small black marginal bristles and with small hairs. Legs. Coxae with black setae. Middle and hind coxae dark, yellow at apex, with black setae and hairs. Legs yellow, apex of front and middle tarsus and 2–5 segments of hind tarsus dark, pulvilli white. Tarsomeres of fore and mid legs simple. Fore femur without strong setae and long hairs. Fore tibia without apicoventral seta, with 2 anterodorsal, 2 posterodorsal and 1 posteroventral setae. Length ratio of fore tibia and tarsus (from 1st to 5th): 5.8 : 3.1 : 1.3 : 0.9 : 0.7 : 0.5. Mid femur with 1 strong preapical bristle. Mid tibia with 4 anterodorsal, 2 posterodorsal and 1 posteroventral setae. Mid basitarsus without strong setae on the ventral side and with few small bristles. Length ratio of mid tibia and tarsus (from 1st to 5th): 10 : 8.8 : 4.7 : 2.6 : 2 : 1. Hind femur without long ventral setae, with 1 strong preapical
_34_Negrobov_Kumazawa_Tago_Maslova/Image_003.gif)
Figs 7–9. Dolichopus tokyoensis sp. n.
7 – hypopygium, lateral view; 8 – surstylus and postgonit, lateral view; 9 – tip of aedeagus. Рис. 7–9. Dolichopus tokyoensis sp. n.
7 – гипопигий, вид сбоку; 8 – сурстили и постгонит, вид сбоку; 9 – вершина эдеагуса.
seta. Hind tibia with 4 anterodorsal, 6 posterodorsal strong setae, 1 anteroventral seta and short ventral seta. Hind basitarsus with 3 strong setae. Length ratio of hind tibia and tarsus (from 1st to 5th):
9.4 : 3.9 : 4 : 2.7 : 1.8 : 1.1.Wing finely infuscate anteriorly, at top with dark spot, with well-developed elongate thickening on costal vein near apex of subcostal vein. R4+5 and M1+2 parallel at apex. M1+2 with rudiment of M2. Ratio of part of costa between R2+3 and R4+5 and that between R4+5 and M1+2 2.5 : 1.3. Apical part of CuA1 longer than dm-cu – 3.3 : 1.8. Anal angle obtuse. Lower calypter yellow with black hairs. Halter yellow.
Abdomen shining green with bronze tint and with dark bronze stripes along margins of segments, covered with black setae. Hypopygium large. Epandrium brown, oblong-oval with long appendage at base. Apicoventral epandrial lobe yellow, broad, straight at apex, with 8 strong setae at apex. Cerci yellow, with wide black border at apex, with serrated margin and sickle-shaped setae, triangular from ventral aspect.
Female. Face grey, wider than that in male. Ratio of postpedicel length to its width to face length 1.3 : 2.1 : 3.4. Wing with simple costal vein.
In the key to Palearctic species [Negrobov et al., 2005], new species Dolichopus ibarakiensis sp. n.,
D. vicfursovi sp. n. and D. tokyoensis sp. n. run to Dolichopus smirnovianus Negrobov, 1977 and can be distinguished from the latter by following characters:
Wing without stigma. Hind basitarsus black, with 2 setae
................................................... Dolichopus smirnovianus
Wing stigma well-developed, elongate. Hind basitarsus mostly yellow, with 3 setae 2
Face light yellow. Wing stigma long, running behind posterior transverse wing vein. Cerci large, their ventral side rounded ................... Dolichopus ibarakiensis sp. n.
Face silvery white. Stigma short, about 3–4 times longer than its width 3
Postpedicel length approximately 1.5 times greater than its width. Wing at top with dark spot. Apicoventral epandrial lobe straight at apex, with 8 strong setae at apex ....................................... Dolichopus vicfursovi sp. n.
Postpedicel length about or barely greater than its width. Wing without dark spot. Apicoventral epandrial lobe with pointed apex, with 2 strong setae at apex ...............
............................................... Dolichopus tokyoensis sp. n.
In the key to species of this genus from China [Yang et al., 2011], new species run to Dolichopus ringdahli Stackelberg, 1929 and can be distinguished from the latter by following characters:
_34_Negrobov_Kumazawa_Tago_Maslova/Image_004.gif)
Figs 10–11. Dolichopus vicfursovi sp. n.
10 – hypopygium, lateral view; 11 – surstylus and postgonite, lateral view. Рис. 10–11. Dolichopus vicfursovi sp. n.
10 – гипопигий, вид сбоку; 11 – сурстили и постгонит, вид сбоку.
Costa without stigma. Antenna black. M1+2 without rudiment of M2................................ Dolichopus ringdahli
Costa with stigma. Antenna yellow, apical part of
postpedicel dark. M1+2 with rudiment of M2 ....................
..................... Dolichopus ibarakiensis sp. n., Dolichopus vicfursovi sp. n. and Dolichopus tokyoensis sp. n.
We would like to express our gratitude to H. Ohishi (Osaka Museum of Natural History, Japan), Dr. V. Fursov (Schmalhausen Institute of Zoology of National Academy of Sciences of Ukraine) and Dr. A. Ozerov (Zoological Museum of Moscow University, Russia) for the providing the specimens.
This work was supported by the grant No. 14-04- 00264-a of the Russian Foundation for Basic Research to
O.P. Negrobov.
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