Phyllomya japonica Shima, 1988

Shima, Hiroshi, Zhang, Wenxia & Tachi, Takuji, 2022, A systematic study of Old World Phyllomya Robineau-Desvoidy (Diptera: Tachinidae), Zootaxa 5099 (4), pp. 401-449 : 427

Phyllomya japonica Shima, 1988

( Figs 34 , 46 , 64 , 81 , 93 , 113 , 141–142 )

Phyllomya japonica Shima, 1988: 15 . Holotype male (BLKU, examined). Type locality: Japan, Yamanashi Pref., South Japanese Alps, Okambazawa , 1500–2000 m.

Phyllomya japonica: Richter 2004: 368 (tachinids of Russian Far East); Shima 2014: 836 (catalog of Japanese Insects); Shima & Hara 2016: 5 (tachinids of Saitama Prefecture).

Diagnosis. Head dichoptic; male usually with 1–2 proclinate orbital setae; parafacial with short, black hairs; arista short plumose; palpus dark brown; 1 presutural and 0 postsutural acrostichal setae; 2 presutural and 3 postsutural dorsocentral setae; 3 katepisternal setae; mid tibia with 2 anterodorsal setae; hind tibia with 3 preapical dorsal setae; male claws and pulvilli distinctly longer than 5th tarsomere; abdominal syntergite 1+2 to 4th tergite each with a pair of median discal setae; male 5th abdominal sternite sharply pointed at postero-interior corner of posterior lobe.

Redescription. Body length: 6.5–10 mm.

Male. Terminalia: Sixth tergite entire, weakly constricted on mid-dorsally, with a few setae; surstylus narrow, evenly narrowed to apex, weakly curved ventrally in lateral view; cerci in dorsal view evenly narrowed to apex, with distinct mid-dorsal suture and very narrowly separated along apical portion; pregonite flat; postgonite extending beyond apex of epiphallus; dorsal sclerite of distiphallus with apical portion weakly curved dorsally. Female. Terminalia: Sixth tergite divided into triangular hemitergites in lateral view, with 1–2 rows of strong setae on posterior margin; 7th tergite divided into rectangular hemitergites, slightly shorter than 6th hemitergite, with a row of rather fine setae on posterior margin; 8th hemitergite short, very narrowly connected with hypoproct on submedian portion and fused with anterior margin of 8th sternite on lower portion; 8th sternite slightly longer than 6th.

Description of first instar larva. Body length 1.05–1.30 mm; cephaloskeleton rather broad on anterior 1/2, dorsal margin slightly convex at posterior 2/5; 2nd thoracic segment with several anterodorsal rows of fine spinules; 2nd to 5th abdominal segments each with rows of rather short posteroventral spinules; 7th segment with several fine spinules on posterolateral portion.

Type material examined. Holotype ♂: [ Japan] HONSHU / S. Jpn Alps / Okambazawa / 1500–2000 m / 25– 26.vii.1986 / H. Shima ( BLKU) . Paratypes: Japan, Honshu : 4 ♂♂, 3 ♀♀, Aomori Pref., Mt. Iwaki , 25.vii.1983, 23.viii.1968, 26.viii.1966, 29.viii.1971, S. Fukushi ; 2 ♀♀, Aomori Pref., Mt. Chokai , 1300–1500 m, 6.ix.1981, S. Fukushi ; 2 ♂♂, Mt. Iwaki , Aomori Pref., 6.ix.1981, S. Fukushi ; 1 ♀, Saitama Pref., Karisaka , 2.viii.1973, K. Hara ; 1 ♂, Saitama Pref., Kumotori , 19.viii.1972, K. Hara ; 1 ♀, Niigata Pref., N. Echigo, Kurokawa , 2.vi.1973, K. Baba ; 1 ♂, Nagano Pref., Kamikochi , 16.ix.1978, T. Goto ; 4 ♀♀, Yamanashi Pref., Kitakoma-gun, Mt. Kitadake , 2240 m, 28.viii.1980, T. Goto (1 ♀ in KMNH) ; 3 ♂♂, same data as holotype ; 2 ♂♂, Hida, Ontake, Nigorigo-onsen , 7, 9. vii.1969, A. Nagatomi (1 ♂ in KMNH) ; 1 ♂, Ishikawa Pref., Mt. Hakusan , 30.viii.1974, K. Nishida. [All KUM un- less otherwise indicated]

Additional material examined. Japan, Honshu : 1 ♂, Gunma Pref., Manza Spa , 6.viii.1995, K. Hara ; 1 ♀, Saita- ma Pref., Ohtaki, Mikuni Pass , 12.viii.1994, K. Hara ; 2 ♂♂, Nagano Pref., Shiga-kyoikuen , 9.viii.1995, T. Tachi ; 3 ♂♂, Nagano Pref., Mt. Yatsugatake , 6.viii.1995, T. Tachi ; 1 ♂, Nagano Pref., Takamine , 8.viii.1995, T. Tachi ; 1 ♀, Nagano Pref., Nagawa-mura, Suzuran , 2.ix.1996, M. Sueyoshi ; 2 ♂♂, Nagano Pref., Iida City, Futagoyama , 1840–2243 m, 28.vii.2013, H. Shima. [All BLKU and KUM]

Distribution. Japan (Honshu).

Remarks. This species very much resembles P. volvulus , but differs from it for the narrow vertex and gena and long male claws. Males of P. japonica usually have 1–2 proclinate orbital setae, but they sometimes lack these setae. This species is usually found at rather high altitudes in Honshu, Japan.

Figures

FIGURES 34–42. Epandrium, surstylus and cerci of Phyllomya spp., lateral view. 34. P. japonica Shima (after Shima 1998). 35. P. nobilis Mesnil (after Shima 1998). 36. P. palpalis Shima & Chao (after Shima & Chao 1992). 37. P. procera (Meigen). 38. P. pubiseta (Mesnil). 39. P. rufiventris Shima & Chao (after Shima & Chao 1992). 40. P. sauteri (Townsend). 41. P. takanoi Mesnil (after Shima 1988). 42. P. volvulus (Fabricius). Scale bars: 0.1 mm.

FIGURES 46–54. Epandrium, surstylus and cerci of Phyllomya spp., dorsal view. 46. P. japonica Shima (after Shima 1998). 47. P. nobilis Mesnil (after Shima 1998). 48. P. palpalis Shima & Chao (after Shima & Chao 1992). 49. P. procera (Meigen). 50. P. pubiseta (Mesnil). 51. P. rufiventris Shima & Chao (after Shima & Chao 1992). 52. P. sauteri (Townsend). 53. P. takanoi Mesnil (after Shima 1988). 54. P. volvulus (Fabricius). Scale bars: 0.1 mm.

FIGURES 64–68. Hypandrium, pre- and postgonite and phallus of Phyllomya spp., lateral view. 64. P. japonica Shima (after Shima 1998). 65. P. nobilis Mesnil (after Shima 1998). 66. P. palpalis Shima & Chao (after Shima & Chao 1992). 67. P. procera (Meigen). 68. P. pubiseta (Mesnil). Scale bars: 0.1 mm.

FIGURES 79–83. Male 5th sternite of Phyllomya spp., ventral view. 79. P. gymnops (Villeneuve). 80. P. humilis Shima (after Shima 1988). 81. P. japonica Shima (after Shima 1998). 82. P. nobilis Mesnil (after Shima 1998). 83. P. palpalis Shima & Chao (after Shima & Chao 1992).

FIGURES 91–94. Female terminalia of Phyllomya spp., lateral view. 91. P. gymnops (Villeneuve). 92. P. humilis Shima. 93. P. japonica Shima. 94. P. nobilis Mesnil. Scale bars: 0.1 mm.

FIGURES 112–120. Adult habitus/male heads of Phyllomya spp., left lateral view. 112. P. humilis Shima. 113. P. japonica Mesnil. 114. P. nobilis Mesnil. 115–116. P. procera (Meigen). 117. P. pubiseta (Mesnil). 118. P. rufiventris Shima & Chao. 119–120. P. sauteri (Townsend).

FIGURES 139–150. First instar larva and cephaloskeleton of Phyllomya spp., lateral view. 139–140. P. humilis Shima. 141– 142. P. japonica Mesnil. 143–144. P. nobilis Mesnil. 145–146. P. procera (Meigen). 147–148. P. rufiventris Shima & Chao. 149–150. P. sauteri (Townsend).