Chalybion malignum ( Kohl, 1906 )

Pham, Phong Huy, Ohl, Michael, Nguyen, Anh Thi Tu & Nguyen, Dinh Thi, 2025, Taxonomy of the genus Chalybion Dahlbom, 1843 (Hymenoptera: Sphecidae) from Vietnam, with description of a new species, Zootaxa 5679 (4), pp. 573-584 : 579

Chalybion malignum ( Kohl, 1906)

Material examined. VIETNAM. Ha Noi: 1 ♀, Ba Vi National Park , Ba Vi, 11.viii.2024 . Hoa Binh: 2 ♀♀, 1 ♂, Tan Lac, Yen Thuy, 5.viii.2017 ; 11 ♀♀, 9 ♂♂, My Tan, Tan Thanh, Luong Son, 15.v–1.ix.2018, trap nests; 77 ♀♀, 60 ♂♂, Kim Son, Kim Boi, 15–30.vi.2019, 1–15.vii.2019, trap nests. Ninh Binh: 2 ♀♀, Cuc Phuong, Nho Quan, 21.vii.2016 . Son La: 1 ♂, Muong Thai, Ham Yen, 11.viii.2017 ; 2 ♀♀, Xuan Nha, Van Ho, 19.ix.2023. Thai Nguyen: 48 ♀♀, 26 ♂♂, Yen Lac, Phu Luong, 25.v.–03.vi.2014, 10–25.v.2019, 1–15.vii.2020, 15–30.vi.2020 , trap nests. Vinh Phuc: 20 ♀♀ ; 13 ♂♂, Tam Dao; ii–vii. 2013, iii–viii. 2014; 400 m, trap nests; 16 ♀♀, 9 ♂♂, Me Linh Station for Biodiversity, Me Linh, i–vi.2013, vii.–xii.2014 , trap nests. Ha Giang: 4 ♀♀, 2 ♂♂, Phong Quang, Vi Xuyen, 25.v.2022 .

Distribution. Vietnam: Hoa Binh, Son La, Thai Nguyen, Vinh Phuc ( Pham & Dang 2017; Pham et al. 2019), Ha Giang, Ha Noi, Ninh Binh (new records). Elsewhere: China, India, Indonesia, Malaysia, Myanmar, Sri Lanka ( Pulawski 2024).