Belongs within: Microhylidae.
The Microhylinae are a clade of frogs found in southern and eastern Asia. Potential synapomorphies include the absence of the vena caudalis dorsalis; origin of the m. suspensoriohyoideus from the otic capsule; and posterolateral projections of the crista parotica as expansive flat chondrifications (Frost et al. 2006).
<==MicrohylinaePW11
| i. s.: Hylaedactylus Duméril & Bibron 1841 [Hylaedactyli]FG06
|--+--Micryletta Dubois 1987FB17, FG06
| | `--M. inornataPW11
| `--+--+--Glyphoglossus Günther 1869PW11, FG06
| | | `--G. molossusPW11
| | `--Calluella Stoliczka 1872FB17, FG06
| | |--C. guttulataPW11
| | |--C. ocellata Liu 1950L50
| | `--C. yunnanensis Boulenger 1919L50
| `--Microhyla Tschudi 1838PW11, FG06 [=Micrhyla Duméril & Bibron 1841FG06]
| | i. s.: M. annectensFB17
| | M. marmorataFB17
| |--M. butleri Boulenger 1900PW11, L50 (see below for synonymy)
| `--+--+--M. pulchraPW11
| | `--M. rubraPW11
| `--+--+--M. borneensisPW11
| | `--M. heymonsiPW11
| `--+--M. okinavensisPW11
| `--+--M. fissipes Boulenger 1884PW11, L50
| `--M. ornata (Duméril & Bibron 1841)PW11, L50 (see below for synonymy)
`--+--Chaperina Mocquard 1892FB17, FG06
| `--C. fuscaPW11
`--+--+--Phrynella Boulenger 1887FB17, FG06
| | `--P. pulchraFB17
| `--Metaphrynella Parker 1934FB17, FG06
| |--M. pollicarisFB17
| `--M. sundanaPW11
`--Kaloula Gray 1831PW11, FG06 [Kaloulinae]
| i. s.: K. borealisL50
| K. macroptica Liu 1945L50
| K. rugifera Stejneger 1924L50
| K. verrucosa (Boulenger 1904) [=Callula verrucosa]L50
|--+--K. conjunctaPW11
| `--K. pulchraPW11
`--+--K. taprobanicaPW11 [=K. pulchra taprobanicaR72]
`--+--Ramanella Rao & Ramanna 1925PW11, FG06
| |--R. obscuraPW11
| `--R. variegataPW11
`--Uperodon Duméril & Bibron 1841PW11, FG06
|--U. systomaFB17
`--+--U. montanusFB17
`--U. variegatusFB17
Microhyla butleri Boulenger 1900PW11, L50 [incl. M. boulengeri Vogt 1913L50, M. grahami Stejneger 1924L50, M. sowerbyi Stejneger 1924L50]
Microhyla ornata (Duméril & Bibron 1841)PW11, L50 [=Engystoma ornatumL50, Diplopelma ornatumL50; incl. D. carnaticum Anderson 1879L50, Microhyla eremita Barbour 1920L50, Ranina symetrica David 1871L50]
*Type species of generic name indicated
References
[FB17] Feng, Y.-J., D. C. Blackburn, D. Liang, D. M. Hillis, D. B. Wake, D. C. Cannatella & P. Zhang. 2017. Phylogenomics reveals rapid, simultaneous diversification of three major clades of Gondwanan frogs at the Cretaceous–Paleogene boundary. Proceedings of the National Academy of Sciences of the USA 114 (29): E5864–E5870.
[FG06] Frost, D. R., T. Grant, J. Faivovich, R. H. Bain, A. Haas, C. F. B. Haddad, R. O. de Sá, A. Channing, M. Wilkinson, S. C. Donnellan, C. J. Raxworthy, J. A. Campbell, B. L. Blotto, P. Moler, R. C. Drewes, R. A. Nussbaum, J. D. Lynch, D. M. Green & W. C. Wheeler. 2006. The amphibian tree of life. Bulletin of the American Museum of Natural History 297: 1–370.
[L50] Liu, C.-C. 1950. Amphibians of western China. Fieldiana: Zoology Memoirs 2: 1–400.
[PW11] Pyron, R. A., & J. J. Wiens. 2011. A large-scale phylogeny of Amphibia including over 2800 species, and a revised classification of extant frogs, salamanders, and caecilians. Molecular Phylogenetics and Evolution 61: 543–583.
[R72] Rajasingh, S. G. 1972. Occurrence of Ceylon kaloula: (Kaloula pulchra taprobanica Parker) (family: Microhylidae) at Tambaram, Tamil Nadu. Journal of the Bombay Natural History Society 69 (1): 193.