Dichogaster bolaui (Michaelsen, 1891)

Benhamia bolaui Michaelsen, 1891: 307, Figs 1–2.

Dichogaster bolaui— Michaelsen 1900: 340; Stephenson 1917: 413; Stephenson 1933: 934; Gates 1942: 129; Gates 1972: 279; Thai 1983: 122; Tran 1985: 53; Do 1994: 119; Nguyen 1994: 78; Le 1995a: 72; Pham 1995c: 107; Thai 2000a: 311; Blakemore 2002: 108, Figs 1.17–1.18; Thai et al. 2004: 758; Huynh & Nguyen 2004b: 70; Huynh 2005a: 137; Thai et al. 2007: 312; Blakemore 2008; Nguyen T.T. & Tran 2008: 61; Nguyen et al. 2010: 114; Tran & Tran 2010: 8; Pham 2010: 62; Nguyen & Nguyen 2010: 123; Nguyen et al. 2011: 1025; Nguyen et al. 2012: 146; Nguyen 2013: 105; Nguyen 2014: 114.

Benhamia octonephra Rosa, 1895: 2, synonymized by Michaelsen (1900).

Benhamia palmicola Eisen, 1896: 132, figs 43–55, synonymized by Michaelsen (1900).

Benhamia malayana Horst, 1893b: 35, Plate II, Figs 10–13, synonymized by Stephenson (1933).

See Blakemore (2002) for more synonyms.

Type locality. Germany ( Bergedorf near Hamburg) . Type material. Hamburg Museum, Germany .

Records from Vietnam. Dien Bien (Dien Bien Phu; Tuan Giao); Son La (Chieng Hac; Xuan Nha); Hoa Binh (Cao Phong); Phu Tho (Doan Hung); Vinh Phuc (Me Linh; Tam Dao); Bac Giang (Hiep Hoa; Tan Yen; Luc Ngan); Lang Son (Bac Son); Hai Phong ( Cat Ba Isl.) ; Hanoi; Nghe An (Quy Chau; Ky Son); Quang Binh (Quang Trach); Quang Tri (Khe Sanh); Thua Thien Hue (Bach Ma NP); Da Nang (Son Tra; Hai Van); Gia Lai (Buon Luoi); Khanh Hoa ( Hon Tre Isl.) ; Ben Tre (Thanh Phu, Binh Dai); Vinh Long (Vung Liem; Long Ho); Kien Giang ( Tho Chu Isl.) ; Dong Thap (Hong Ngu; Thanh Binh); Can Tho (O Mon; Thot Not; Co Do; Phong Dien; Thoi Lai); An Giang (Tinh Bien, Phu Tan, Chau Phu, Chau Thanh, Cho Moi); Hau Giang (Phung Hiep); Tra Vinh (Chau Thanh, Cau Ke); Soc Trang (Vinh Chau) (Tran 1985; Do 1994; Nguyen 1994; Le 1995a; Pham 1995c; Thai et al. 2004; Huynh & Nguyen 2004b; Huynh 2005a; Nguyen et al. 2010; Tran & Tran 2010; Pham 2010; Nguyen 2014).

Vietnamese name. Giun dạ dày kép bolau.

Distribution. A cosmopolitan species; reported from various parts of Asia, America, Europe, Oceania, and Australia (Blakemore 2002).