Chalybion bengalense ( Dahlbom, 1845 )

Pham, Phong Huy, Ohl, Michael & Truong, Lam Xuan, 2019, The genus Chalybion Dahlbom, 1843 (Hymenoptera: Sphecidae) from Northwest Vietnam, with description of a new species, Zootaxa 4712 (2), pp. 202-210 : 204

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.

Figures

FIGS. 11–15: Species of the genus Chalybion known from northwest Vietnam. 11. C. bengalense (Dahlbom, 1845). 12. C. dolichothorax (Kohl, 1918). 13. C. gracile Hensen, 1988. 14. C. japonicum (Gribodo, 1882). 15. C. malignum (Kohl, 1906). FIG. 16: Nest of C. tanvinhensis sp. nov.