Search tool	Example of search string in box	What that means to the database
* = "wildcard". Allows a partial letter string to be entered and implies either no or various extension on this letter string	Hyl*	Will find all uses of "Hyl . . ." anywhere in a record: e.g., Hylarana, Hyla, Hylidae, Hylinae, Hylaedactyla.
* = "wildcard". Allows a partial letter string to be entered and implies either no or various extension on this letter string	*Hyla	Will find all uses of ". . . hyla" anywhere in a record: e.g., Hyla, Hylidae, Plectrohyla, Ptychadena hylaea, Adenomera hylaedactyla
	Hyla	Will find all records that contain stand-alone uses of Hyla: e.g., Hyla, Hyla arenicolor
Strings of words without quotation marks	Lithobates pipiens	Interprets this as "Lithobates OR pipiens" so will find the union of all records that contain either "Lithobates" or "pipiens": e.g., Lithobates omiltemanus, Hylorana pipiens
Strings of word with quotation marks	"Lithobates pipiens"	Interprets this as "Lithobates AND pipiens" so will return all records that have the character string "Lithobates pipiens" anywhere within a record: e.g., all members of the Lithobates pipiens complex.
AND statement. Means that the results of the search must include both words held together by an AND	Lithobates AND pipiens	Same as "Lithobates pipiens"
OR statement. Means that the results of the search will all records that have either of the terms held together by an OR	Lithobates OR "Costa Rica"	Recovers all records that contain the word "Lithobates" or "Costa Rica": 402 records inasmuch as this will include all records for the entire amphibian fauna of Costa Rica
Combining Boolean operators within the Basic Search box (AND, OR, NOT, quotation marks)	Lithobates AND "Costa Rica" NOT forreri	Recovers only records that contain the word Lithobates AND "Costa Rica", but excludes any record that contains the word "forreri" in any part of the record: 9 records
Printable HELP file

Search tool	Example of search string in box	What that means to the database
* = "wildcard". Allows a partial letter string to be entered and implies either no or various extension on this letter string	Hyl*	Will find all uses of "Hyl . . ." anywhere in a record: e.g., Hylarana, Hyla, Hylidae, Hylinae, Hylaedactyla.
* = "wildcard". Allows a partial letter string to be entered and implies either no or various extension on this letter string	*Hyla	Will find all uses of ". . . hyla" anywhere in a record: e.g., Hyla, Hylidae, Plectrohyla, Ptychadena hylaea, Adenomera hylaedactyla
Single word	Hyla	Will find all records that contain stand-alone uses of Hyla: e.g., Hyla, Hyla arenicolor
Strings of words without quotation marks	Lithobates pipiens	Interprets this as "Lithobates OR pipiens" so will find the union of all records that contain either "Lithobates" or "pipiens": e.g., Lithobates omiltemanus, Hylorana pipiens
Strings of word with quotation marks	"Lithobates pipiens"	Interprets this as "Lithobates AND pipiens" so will return all records that have the character string "Lithobates pipiens" anywhere within a record: e.g., all members of the Lithobates pipiens complex.
AND statement. Means that the results of the search must include both words held together by an AND	Lithobates AND pipiens	Same as "Lithobates pipiens"
OR statement. Means that the results of the search will all records that have either of the terms held together by an OR	Lithobates OR "Costa Rica"	Recovers all records that contain the word "Lithobates" or "Costa Rica": 402 records inasmuch as this will include all records for the entire amphibian fauna of Costa Rica
Combining Boolean operators within the Basic Search box (AND, OR, NOT, quotation marks)	Lithobates AND "Costa Rica" NOT forreri	Recovers only records that contain the word Lithobates AND "Costa Rica", but excludes any record that contains the word "forreri" in any part of the record: 9 records
Printable HELP file

Polypedates impresus Yang, 2008

Class: Amphibia > Order: Anura > Family: Rhacophoridae > Subfamily: Rhacophorinae > Genus: Polypedates > Species: Polypedates impresus

Polypedates impresus Yang, 2008, in Yang and Rao (ed.), Amph. Rept. Yunnan: 109. Holotype: Number 01092, by original designation, institution of deposit not noted (presumably KIZ). Type locality: Simao City (now known as Puer), Nuozdu River Crossing, Yunnan, China, 850 m elevation.

Polypedates (Polypedates) impresus — Mahony, Kamei, Brown, and Chan, 2024, Vert. Zool., Senckenberg, 74: 256, by implication.

Common Names

Yunnan Whipping Frog (Poyarkov, Nguyen, Popov, Geissler, Pawangkhanant, Neang, Suwannapoom, and Orlov, 2021, Russ. J. Herpetol., 28 (3A): 59).

Concave-crowned Treefrog (Fei, Ye, and Jiang, 2012, Colored Atlas Chinese Amph. Distr.: 527).

Concave-crowned Tree Frog (Niyomwan, Srisom, and Pawangkhanant, 2019, Field Guide Amph. Thailand: 422).

Distribution

Known definitely only from a few localities in Yunnan (Puer, Lüchun, Xishuangbanna) and Guangxi (Jingxin), China, northern Laos (Houaphan, Phongsaly, Xiangkhouang, and Louangphabang provinces), peninsular Thailand (Phangnga), and northeastern Vietnam (Lang So'n Province).

Geographic Occurrence

Natural Resident: China, People's Republic of, Laos, Thailand, Vietnam

Comment

Fei, Ye, and Jiang, 2012, Colored Atlas Chinese Amph. Distr.: 527, provided an account, photographs, and a range map. Pan, Dang, Wang, Zheng, Rao, and Li, 2013, Asian Herpetol. Res., 4: 124–133, provided further support for the recognition of this species within the Polypedates leucomystax complex and discussed the complex within China and Laos. Niyomwan, Srisom, and Pawangkhanant, 2019, Field Guide Amph. Thailand: 422–423, provided a brief account (description, photographs, habitat, and range) for Thailand (in Thai). Yuan, Deng, Jiang, Klaus, Orlov, Yang, and Li, 2021, Zool. Res., Kunming, 42: 116–123 (supplemental data) provided a record from Lang So'n Province, northeastern Vietnam on the Guangxi, China, border. Buddhachat and Suwannapoom, 2018, PeerJ, 6 (e4263): supplemental data, provided the record for peninsular Thailand, genetically confirmed. Stuart, Seateun, Sivongxay, and Phimmachak, 2025 "2024", in Wildlife Lao PDR: 44, summarized literature, taxonomy, habitat, and detailed range for Laos

External links:

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For access to general information see Wikipedia
For additional sources of general information from other websites search Google
For access to relevant technical literature search Google Scholar
For images search CalPhoto Images and Google Images
To search the NIH genetic sequence database, see GenBank
For additional information see AmphibiaWeb report
For information on conservation status and distribution see the IUCN Redlist
For information on distribution, habitat, and conservation see the Map of Life
For related information on conservation and images as well as observations see iNaturalist
For additional information specific to China see Amphibia China