The genus Chalybion Dahlbom, 1843 (Hymenoptera: Sphecidae) from Northwest Vietnam, with description of a new species Author Pham, Phong Huy Author Ohl, Michael Author Truong, Lam Xuan text Zootaxa 2019 2019-12-19 4712 2 202 210 journal article 24548 10.11646/zootaxa.4712.2.2 5d5945e4-d636-44c0-84eb-7eb926b1b91a 1175-5326 3587019 24AF598E-8770-41F4-9259-4E11300B6222 Chalybion bengalense ( Dahlbom, 1845 ) ( Fig. 11 ) Material examined : VIETNAM : Son La : 3 ♀♀ , 1 ♂ , Chieu Village , Muong Thai , Ham Yen , 10.viii.2017 ; 2 ♀♀ , 5 ♂♂ , Son La city, 17.v.2017 , Phong Huy Pham ; 1 ♀ , 3 ♂♂ , Son La city, 1-20.viii.2017 , Long Dang Khuat . Hoa Binh : 2 ♀♀ , 1 ♂ , Tan Lac , Yen Thuy , 3.viii.2017 , Phong Huy Pham ; 1 ♂ , Tan Son , Mai Chau , 10-15.v.2001 , Malaise trap , Long Dang Khuat ; 1 ♀ , 2 ♂♂ , Lac village , Mai Chau town , Mai Chau , 12.v.2019 , Phong Huy Pham . Lao Cai : 2 ♂♂ , about 30 km east of Lao Cai city, near Hanoi-Laocai highway, 21.ix.2017 , Phong Huy Pham . Yen Bai : 2 ♂♂ , Yen Bai city, 14.ii.2015 , emerged from a nest, Phong Huy Pham . Distribution : Vietnam : Sai Gon, Vung Tau ( Dollfuss 2016 ), Da Nang ( Tano & Kurokawa 2015 ), Hanoi , Thai Binh , Vinh Phuc , Nam Dinh , Son La , Hoa Binh , Ninh Binh , Thai Nguyen , Hung Yen , Quang Ninh , Bac Ninh , Lao Cai , Hai Duong , Phu Tho , Thanh Hoa , Nghe An , Quang Ngai , Kon Tum , Dac Lak ( Pham 2018 ). Elsewhere : South Africa , Tanzania , Madagascar (Mascarenes, Seychelles islands), Ethiopia , Yemen ( Socotra island), Maldives , Eritrea , Mozambique , Bangladesh , Iraq , Egypt , Greece , Nepal , Italy , French Polynesia , Sri Lanka , India , Myanmar , Malaysia , Singapore , Thailand , China , Taiwan , Japan , Philippines (Volcano island), Indonesia ( Ternate , Misool, Lesser Sunda island), Timor, Kiribati (Gilbert island), Guam , Mauritius (Chagos Archipelago), Australia , United State.