Shimamyia exigua ( Shima, 1979 ), 2024

Huang, Yu-Zen & Tachi, Takuji, 2024, A new genus of the tribe Blondeliini (Diptera: Tachinidae: Exoristinae) from the Oriental Region with morphological and molecular evidence, Zootaxa 5496 (2), pp. 151-171 : 155

Shimamyia exigua ( Shima, 1979) comb. nov.

( Figs. 1A–B , 2A–B , 3 , 4A )

Medinodexia exigua Shima, 1979: 140 .

Specimens examined. HOLOTYPE: male ( NSMT), INDONESIA /Noongan/50 Km S. of/Menado 1200m / 2–10 Dec. 1973 . PARATYPES: 1 female ( BLKU) , 2 males, INDONESIA /Noongan/50 Km S. of/Menado 1200m / 2–10 Dec. 1973 .

Additional specimens: China ( Xishuangbanna, Yunnan), H. Shima leg.: 1 male ( BLKU), Menglun , 500–700 m, 6–9.viii.1990; 1 male ( BLKU), Mengyang 950 m, 6.x.1989; 1 female ( BLKU), Mengla , 700–1000 m, 3–5.viii.1990. Indonesia: 1 male ( BLKU), Lurah Berangin, Pasaman WEST SUMATERA, 4.vii.1990, K. Hara leg. Taiwan ( Chunyang, Nantou), C. S. Lin & W. T. Yang leg.: 1 male ( NMNS), 25–27.v.1993, UV light; 1 female ( NMNS), 10.xii.2002 – 7.i. 2003, Malaise trap ( KCN). Vietnam, H. Kurahashi leg.: 1 male ( BLKU), Son La Prov., nr Moc Chau Truong Yen 900 m, 19–21.vi.1997; 1 female ( BLKU), Lao Cai Prov., nr Sapa Deo Tram Ton 1950 m, 31.v.1999 .

Diagnosis. Body length: 5.23–5.70 mm. Vertex 0.19–0.25 of head width in male, 0.25–0.31 in female; antenna with postpedicel 2.8–4.0 times as long as pedicel in male, 2.8–3.4 times in female; 3 katepisternal setae; male abdominal tergite 5 with dense recumbent hairs dorsally; male postabdomen with surstylus short and rounded apically with some setae in lateral view, tapering and curved inward with some setae in dorsal view; cerci tapering in dorsal view; pregonite rounded apically; female with elongate intersegmental membrane of segments 5, 6 and sternite 6.

Distribution. China, Indonesia, Taiwan, Vietnam.

Remarks. This species is newly recorded from China ( Yunnan), Taiwan, and Vietnam.

Figures

FIGURE 1. A–D Holotypes of two Shimamyia species. A. Shimamyia exigua (Shima) comb. nov. male, habitus in lateral view. B. Shimamyia exigua male, habitus in dorsal view. C. Shimamyia orientalis (Shima) comb. nov. male, habitus in lateral view. D. Shimamyia orientalis male, habitus in dorsal view.

FIGURE 2. A–F Shimamyia A. Shimamyia exigua (Shima) comb. nov. male head in lateral view (Indonesia, Noongan; KUM). B. Shimamyia exigua male, habitus in lateral view. C. Shimamyia orientalis (Shima) comb. nov. male, habitus in lateral view (Thailand, Kanchana Buri; KUM). D. Shimamyia taiwanensis sp. nov. male, habitus in lateral view, holotype male (NMNS). E. Shimamyia vietnamensis sp. nov. male head in lateral view, holotype male (BLKU). F. Shimamyia vietnamensis male, habitus in lateral view. Scale bars: 1.0 mm.

FIGURE 3. A–D Shimamyia exigua (Shima) comb. nov. male postabdomen (Taiwan, Nantou; NMNS). A. Sternite 5 in ventral view (setae on left side omitted). B. Epandrium, cerci, and surstyli in dorsal view (setae on left side omitted). C. Epandrium, cercus, and surstylus in lateral view. D. Hypandrium, pregonite, postgonite, and phallus in lateral view. Abbreviations: cerc, cercus; distph, distiphallus; epand, epandrium; epiph, epiphallus; hypd, hypandrium; pgt, postgonite; prgt, pregonite; sur, surstylus). Scale bars: 0.10 mm.

FIGURE 4. A–B Female postabdomens of Shimamyia. A. Female postabdomen of Shimamyia exigua (Shima) comb. nov. (Vietnam, Lao Cai; BLKU) in lateral view. B. Female postabdomen of Shimamyia orientalis (Shima) comb. nov. (Indonesia, Java; BLKU) in lateral view. Abbreviations: st, abdominal sternite; t, abdominal tergite. Scale bar: 0.20 mm.