Botria japonica Mesnil, 1957

Tachi, Takuji, 2013, Systematic study of the genera Phryno Robineau-Desvoidy and Botria Rondani in the Palearctic Region, with discussions of their phylogenetic positions (Diptera, Tachinidae), Zootaxa 3609 (4), pp. 361-391 : 380-381

Botria japonica Mesnil, 1957

( Figs. 26–28 , 47 )

Botria japonica Mesnil, 1957: 22 . Holotype male (CNC, examined). Type locality: Japan, Hokkaido, Sapporo.

Diagnosis. Antenna with arista at most thickened on basal half; male vertex 0.15–0.2 of head width; parafacial subequal in width to first flagellomere; gena 0.33–0.38 of eye height; male postabdomen with surstylus wide and bearing many setae in lateral view, apex with short and thick setae ventrodistally, curved inward on basal half in dorsal view; cerci rather slender and rounded apically in lateral view.

Redescription. Male. Face with whitish yellow pruinosity; parafacial, fronto-orbital plate and lower part of gena with silvery white pruinosity; frontal vitta black or dark brown; upper part of gena reddish orange; antenna entirely black or dark brown; palpus light yellow to orange, sometimes dark brown. Vertex 0.15–0.20 of head width; frontal vitta subequal in width to fronto-orbital plate at middle; parafacial subequal in width to first flagellomere; gena 0.33–0.38 of eye height; antenna with first flagellomere 3.8–4.5 times as long as pedicel and 2.3–3.0 times as long as wide; arista at most thickened on basal half.

Thoracic dorsum and pleura black in ground color with whitish gray pruinosity; scutellum orange on apical 3/ 4–4/5; apical scutellar setae usually absent, if present then divergent.

Wing. Vein M with section between crossvein dm-cu and bend 1.0–1.3 times as long as that between bend and wing margin. Relative lengths of costal sectors second, third and fourth approximately as 5: 11: 5; ultimate section of CuA1 approximately 0.2 times as long as penultimate section and approximately 0.6 times as long as crossvein dm-cu.

Legs. Femora broadly black; tibiae and tarsi orange.

Abdomen. Black in ground color, with dense whitish gray pruinosity on all terga except for syntergum 1+2.

Male postabdomen. Surstylus broad in lateral view with many setae on outer surface, apex with minute spines ventrodistally, curved inward on basal half in dorsal view; cerci rather slender and rounded apically in lateral view.

Female. Similar to male, but differing as follows: vertex wider, 0.26–0.29 of head width; antenna with scape and pedicel reddish yellow or light brown; first flagellomere short, 2.5–3.0 times as long as pedicel.

Body length. 6.1–11.2 mm.

Specimens examined. JAPAN. Hokkaido: 10 males (SEHU), Sapporo City, 3.v.1965, 5, 9.v.1966; 2 females (BLKU), Mt. Muine, Sapporo City, 20.vi.1974; 4 males (SEHU, BLKU), Mt. Moiwa, Sapporo City, 3.v.1968, 30.iv.2007; 3 males (SEHU, BLKU), Maruyama Park, Sapporo City, 9.v.1965, 5, 22.v.2007; 4 males (SEHU), Nopporo, 29.iv.1965, 18.iv., 6.v.1968; 2 females (BLKU), Berabonai, Ashoro Town, 16.vi.1968, 5.vii.1986. Honshu: 3 males (BLKU), Asamushi, Aomori City, Aomori Prefecture, 25.iv.1982; 1 female (BLKU), Zatoishi, Hirosaki City, Aomori Prefecture, 15.v.1989; 1 female (BLKU), Jyuni Lake, Iwasaki Village, Aomori Prefecutre, 27.v.1977; 1 female (BLKU), Oga Peninsula, Akita Prefecture, 4.v.1989; 1 female (BLKU), Tayama, Iwate Prefecture, 6.v.1981; 3 males (BLKU), Wakamiyama, Nasushiobara, Tochigi Prefecture, 5.v.2006; 1 female (BLKU), Sasagamina, Myokokogen Town, Niigata Prefecture, 23.vi.1996; 1 female (BLKU), Shimashima-dani, Nagano Prefecture, 22.v.1975; 1 female (BLKU), Togakushi, Nagano Prefecture, 26.vi.1996. Shikoku: 1 male, 2 females (BLKU), Omogokei, Ehime Prefecture, 16.iv.1997. Kyushu: 1 male (BLKU), Nakamichi, Itsuki Village, Kumamoto Prefecture, 8.iv.1984.

Distribution. Japan (Hokkaido, Honshu, Shikoku, Kyushu).

Host. Unknown.

Figures

FIGURES 26 – 31. 26 – 28. Male postabdomen of B. japonica Mesnil (Hokkaido, Japan). 26. Epandrium, cerci and surstylus in lateral view. 27. Same in dorsal view (setae omitted on left side). 28. Hypandrium, pregonite, postgonite and phallus in lateral view. 29 – 31. Male postabdomen of B. subalpina Villeneuve (Germany). 29. Epandrium, cerci and surstylus in lateral view. 30. Same in dorsal view (setae omitted on left side). 31. Hypandrium, pregonite, postgonite and phallus in lateral view. Scale bars = 0.5 mm.

FIGURES 47 – 54. Microtype eggs showing dorsal chorion in dorsal view. 47. Botria japonica (Hokkaido, Japan). 48. Phryno katoi (Iwate, Japan). 49. Cyzenis sp. (Hokkaido, Japan). 50. Sericozenillia albipila (Tokyo, Japan). 51. Allophorocera rutila (Saitama, Japan). 52. Calozenillia tamara (Hokkaido, Japan). 53. Gonia chinensis (Hokkaido, Japan). 54. Pales pavida (Hokkaido, Japan). Scale bars = 50 μm.