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 Genus 14. Sinotilla Lelej, 1995 Diagnosis. FEMALE. This genus can be recognized by having the mesosoma with a scutellar scale and T6 convex without any trace of a defined pygidium. Other useful features are discussed by Okayasu (2017) . MALE. See Lelej (1995b). Diversity and Distribution. This genus includes 21 species in the eastern Oriental region ( Okayasu 2017 , Okayasu et al. 2018). Remarks. The females of this genus were recently reviewed by Okayasu (2017) . The species treated here, including two newly recorded from Thailand , were identified using his keys. In minor features, they differ from other specimens of those taxa. Comparison of larger series or discovery of the males could necessitate that these be described as new species.