The female velvet ants (aka modkhong) of southern Thailand (Hymenoptera: Mutillidae), with a key to the genera of southeast Asia Author Williams, Kevin A. Author Lelej, Arkady S. Author Okayasu, Juriya Author Borkent, Christopher J. Author Malee, Rufeah Author Thoawan, Kodeeyah Author Thaochan, Narit text Zootaxa 2019 2019-05-07 4602 1 1 69 journal article 26916 10.5281/zenodo.2669927 f32a6f5a-0c9f-43c4-a273-4bc325ece96e 1175-5326 2669927 F066A962-743F-4899-AFAE-485C5A51EF2F 14b. Sinotilla cyaneiventris ( André, 1896 ) ( Figs 13 , 62–64 ) Mutilla cyaneiventris André, 1896 : 18 , ♂ Smicromyrme cyaneiventris: Mickel 1933b: 320 , ♂ ; Yasumatsu 1948 : 73 , ♂ ; Hammer 1949 : 11 , ♂ ; Chen 1957 : 203 , ♂ , ♀ . Sinotilla cyaneiventris : Lelej, 1995b: 20 , ♀ ; 2002: 63, ♂ , ♀ ; 2005: 54, ♂ , ♀ ; Okayasu 2017 : 164 , ♀ Diagnosis. FEMALE. This species has the length of F1 subequal to F2; T1 orange-brown without a whitish band; T2 without a basal spot of whitish setae, and the metasoma bright metallic purple. Body length 4 mm . MALE. See Chen (1957) . Material examined ( 2 ♀ ). THAILAND , Kanchanaburi , Thong Pha Phum , Vimarndin farm stay, 14.655 o N 98.521 o E , 200 m , 17–20.V.2018 , MKT ( 1♀ CSCA ) ; Phetchabun , Khao Kho National Park , Thanthip waterfall, 16 o 39.087'N 101 o 0 7.777'E , 210 m , 5–12.IX.2006 , Malaise trap , S. Chachumnan and S. Singtong , T589 ( 1♀ QSBG ) . Distribution. China ( Hebei , Shanxi , Neimenggu , Jiangsu , Jiangxi , Zhejiang , Yunnan ) and Thailand * ( Kanchanaburi , Phetchabun ). Remarks. This species is widespread in China ; the lone specimen we collected in Kanchanaburi represents the new southernmost distribution record.