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

Nidirana chapaensis (Bourret, 1937)

Class: Amphibia > Order: Anura > Family: Ranidae > Genus: Nidirana > Species: Nidirana chapaensis

Hylarana chapaensis Bourret, 1937, Annexe Bull. Gen. Instr. Publique, Hanoi, 1937: 34. Syntypes: MNHNP 1938.58–65 and 1948.144–147 (12 specimens) (formerly LSNUH). MNHNP 1938.61 (formerly LSNUH Z 270) designated lectotype by Dubois, 1992, Bull. Mens. Soc. Linn. Lyon, 61: 341. Type locality: "Chapa" (= Sa Pa), Lao Cai Province, Vietnam.

Rana (Hylarana) chapaensis — Bourret, 1937, Annexe Bull. Gen. Instr. Publique, Hanoi, 1937: 34; Dubois, 1987 "1986", Alytes, 5: 42; by implication.

Hylarana chapaensis — Bourret, 1942, Batr. Indochine: 98.

Rana (Hylorana) chapaensis — Guibé, 1950 "1948", Cat. Types Amph. Mus. Natl. Hist. Nat.: 41.

Rana (Nidirana) chapaensis — Dubois, 1992, Bull. Mens. Soc. Linn. Lyon, 61: 324.

Nidirana chapaensis — Chen, Murphy, Lathrop, Ngo, Orlov, Ho, and Somorjai, 2005, Herpetol. J., 15: 237; Fei, Ye, and Jiang, 2010, Herpetol. Sinica, 12: 35. See comment under Ranidae record; Lyu, Zeng, Wang, Lin, Liu, and Wang, 2017, Amphibia-Reptilia, 38: 494.

Babina chapaensis — Frost, 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: 368.

Common Names

Sapa Harpist Frog (Poyarkov, Nguyen, Popov, Geissler, Pawangkhanant, Neang, Suwannapoom, and Orlov, 2021, Russ. J. Herpetol., 28 (3A): 47).

Chapa Frog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 106).

Glandular-sided Frog (Chan-ard, 2003, Photograph. Guide Amph. Thailand: 126). See comment.

Chapa Music Frog (Lyu, Zeng, Wang, Lin, Liu, and Wang, 2017, Amphibia-Reptilia, 38: 494).

Distribution

Lao Cai, Lai Chau, Ha Giang, Bac Giang, Ha Tinh, Kon Tum, Gia Lai, Dak Lak, Son La, and Hoa Binh Province provinces, Vietnam, and Khammouan and Salavan provinces, Laos; in adjacent Wenshan Prefecture, southeastern Yunnan, China; likely into northeastern Cambodia.

Geographic Occurrence

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

Likely/Controversially Present: Cambodia

Comment

In the Rana (Nidirana) adenopleura group of Dubois, 1992, Bull. Mens. Soc. Linn. Lyon, 61: 324. See account by Bourret, 1942, Batr. Indochine: 341–343, who considered it to be a member of the subgenus Hylarana. Stuart, 2005, Herpetol. Rev., 36: 477, provided specific localities for Laos. Nguyen, Ho, and Nguyen, 2005, Checklist Amph. Rept. Vietnam: 26, provided specific localities for Vietnam. Luu, Nguyen, Pham, Dang, Vu, Miskovic, Bonkowski, and Ziegler, 2013, Biodiversity J., 4: 285–300, reported the species in Phong Nha–Ke Bang National Park, Quang Binh Province, Vietnam. Hecht, Pham, Nguyen, Nguyen, Bonkowski, and Ziegler, 2013, Biodiversity J., 4: 507–552, reported a record from Tay Yen Tu Nature Reserve, Bac Giang Province, northeastern Vietnam and discussed the range. Luu, Le, Do, Hoang, Nguyen, Bonkowski, and Ziegler, 2014, Herpetol. Notes, 7: 51–58, provided a record for Thuong Tien nature Reserve, Hoa Binh Province, Vietnam. Ziegler, Tran, Nguyen, Perl, Wirk, Kulisch, Lehmann, Rauhaus, Nguyen, Le, and Vu, 2014, Herpetol. Notes, 7: 185–201, provided a record for Ha Giang Province and briefly discussed the range. Yuan, Liu, Wang, Wang, Chen, Jin, Wei, Zhou, and Che, 2019, Zootaxa, 4571: 580–588, provided the first record for Yunnan, China. Pham, Hoang, and Nguyen, 2018, J. Sci. Tech., Vietnam, 180: 67–71, reported the species from Sin Hoe forest, Lai Chau Province Vietnam. Li, Wei, Xu, Cui, Fei, Jiang, Liu, and Wang, 2019, PeerJ, 7(e7157): 1–27, suggested that populations in Laos may be a cryptic species. Reported from Son La Province, northwestern Vietnam, by Pham, Nguyen, Pham, Sung, Le, Vaxong, and Ziegler, 2022, Herpetol. Notes, 15: 169–178, who also provided descriptive notes on the new specimens. Stuart, Seateun, Sivongxay, and Phimmachak, 2025 "2024", in Wildlife Lao PDR: 39, summarized literature, taxonomy, habitat, and detailed range for Laos.

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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