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 14a. Sinotilla belokobylskiji Lelej, 1995 ( Figs 59–61 ) Sinotilla belokobylskiji Lelej, 1995b: 22 , ♀ ; 2005: 54, ♀ . Diagnosis. FEMALE. This species has a distinct scutellar scale, T2 medially depressed with large coarse confluent punctures, T2 with a large spot of dense whitish setae medially, S2–3 with bands of whitish setae, and the metasoma black. Body length 4.5–11 mm . MALE. Unknown. Material examined. Holotype , ♀ , VIETNAM , Vinh Phu , Tam Dao , 1000 m , forest, 10.XI.1990 , S. Belokobylskij (ZISP). Other Material ( 7 ♀ ). THAILAND : Chiang Mai , Omkoi District , Dry dipterocarp forest, 17°50'49.9"N 98°22'33.0", 950–1010 m alt., 12.IX.2016 , R. Mizuno ( 1♀ EUM); 14.XII.2016 , R. Mizuno ( 2♀ EUM); Phetchaburi , Kaeng Krachan, Baan Maka Nature Lodge, 12.840 o N 99.590 o E , 140 m : 16.V.2018 , MKT ( 1♀ CSCA); 22–23.V.2018 , MKT ( 2♀ CSCA); Songkhla , Hat Yai, Prince of Songkhla University, forest edge, 7.008 o N 100.508 o E , 40 m , 11–12.IV.2017 , MKT ( 1♀ CSCA). Distribution. Thailand * ( Chiang Mai , Phetchaburi , Songkhla ) and Vietnam . Remarks. The type of S. belokobylskiji from Vietnam is diagnosed as having a rather broad scutellar scale (Lelej 1995; Okayasu 2017 ), unlike the specimens treated here. In other species, however, like Mickelomyrme athalia , scutellar scale width seems to vary intraspecifically. We hypothesize that the specimens listed above belong to S. belokobylskiji , but future analyses may recognize them as a distinct species.