Feihyla hansenae (Cochran, 1927)

Class: Amphibia > Order: Anura > Family: Rhacophoridae > Subfamily: Rhacophorinae > Genus: Feihyla > Species: Feihyla hansenae

Philautus hansenae Cochran, 1927, Proc. Biol. Soc. Washington, 40: 181. Holotype: USNM 70109, by original designation. Type locality: "Nong Khor, southeastern Siam".

Rhacophorus (Chirixalus) hansenaeAhl, 1931, Das Tierreich, 55: 56, 103.

Chirixalus hansenaeBourret, 1942, Batr. Indochine: 475; Inger, 1985, In Frost (ed.), Amph. Species World: 538.

Chiromantis hansenaeFrost, Grant, Faivovich, Bain, Haas, Haddad, de Sá, Channing, Wilkinson, Donnellan, Raxworthy, Campbell, Blotto, Moler, Drewes, Nussbaum, Lynch, Green, and Wheeler, 2006, Bull. Am. Mus. Nat. Hist., 297: 367.

Feihyla hansenaeFrost, 2014, Amph. Spec. World, vers. 6.0, by implication of the finding by Aowphol, Rujirawan, Taksintum, Arsirapot, and McLeod, 2013, Zootaxa, 3702: 101-123, that Chiromantis hansenae is the sister taxon of Feihyla vittata (as Chiromantis vittatus). 

English Names

Hansen's Asian Treefrog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 111).

Chon Buri Pigmy Tree Frog (Nutphund, 2001, Amph. Thailand: 154).

Hansen's Bushfrog (Chan-ard, 2003, Photograph. Guide Amph. Thailand: 144).


East-central and southeastern into peninsular Thailand (see comment); presumably in adjacent Cambodia and possibly into southeastern and peninsular Myanmar; reported from Sylhet Division, northeastern Bangladesh.


See accounts by Bourret, 1942, Batr. Indochine: 475-476, and (as Philautus hansenae) by Taylor, 1962, Univ. Kansas Sci. Bull., 43: 526-529. Nutphund, 2001, Amph. Thailand: 154, provided a brief characterization and photograph, which Ohler, 2003, Alytes, 21: 101, attributed to Hyla annectans. Chan-ard, 2003, Photograph. Guide Amph. Thailand: 144-145, provided a very brief account, map for Thailand, and photograph. Stuart and Emmett, 2006, Fieldiana, Zool., N.S., 109: 11, suggested that Chirixalus hansenae may be a junior synonym of Chirixalus vittatusAowphol, Rujirawan, Taksintum, Arsirapot, and McLeod, 2013, Zootaxa, 3702: 101-123, reported Genbank DQ28313, previously identified as Chiromantis vittatus, to align with Chiromantis hansenae, but did not examine the voucher specimen. These authors also suggested on molecular grounds that nominal Chiromantis hansenae is composed of two lineages from central, eastern, and peninsular Thailand (the nominate form) and montane forests of northwestern Thailand (an unnamed species). These author also found this species to be the sister taxon of Chiromantis vittatus, recently transferred to Feihyla. Yodthong, Siler, Prasankok, and Aowphol, 2014, Asian Herpetol. Res., 5: 179–196, suggested on the basis of molecular evidence that nominal Chiromantis hansenae is composed of two lineages, one in northeastern, eastern and southern Thailand and the other from northwestern and western Thailand. See comments by Hakim, Trageser, Ghose, Das, Rashid, and Rahman, 2020, Check List, 16: 1239–1268, who reported the species from Lawachara National Park, Sylhet Division, northeastern Bangladesh.  

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