(syn. Pteruthius Ϯ Black-headed Shrike Babbler P. rufiventer) Gr. ἱλαρος hilaros merry, cheerful < ἱλαος hilaos propitious, gracious; κιχλη kikhlē thrush; "Genus HILAROCICHLA, n. gen. I propose to separate the following species from the members of the genus Pteruthius on account of its much longer tail, which is quite equal in length to the wing, and the greater graduation of the tail-feathers, the outer falling short of the middle feathers by a third of the total length of the tail. In all other respects Hilarocichla agrees with Pteruthius. 256. Hilarocichla rufiventris. The Rufous-bellied Shrike-Tit" (Oates 1889).