Thai National Parks

Species of Thailand

Karin shrub frog

Raorchestes parvulus

George Albert Boulenger, 1893

In Thai: ปาดจิ๋ว

Raorchestes parvulus (common names: Karin bubble-nest frog, tiny bubble-nest frog, dwarf bushfrog, cricket frog) is a species of frog in the family Rhacophoridae. It is found from eastern Bangladesh east through Myanmar and Thailand to Cambodia, northern Vietnam, Laos, and Peninsular Malaysia. Its distribution might well extend into northeastern India and southern China. This species was first described by George Albert Boulenger based on seven specimens collected by Leonardo Fea from Karen Hills, Burma.


Raorchestes parvulus are small frogs. Males measure up to 23 mm in snout-vent length, although modern sources give range 18 - 21 mm for SVL. They have a rounded snout and hidden tympanum. The fingers and toes short and bear adhesive discs; fingers are free from webbing but toes are slightly webbed at their base. The back is greyish or brown. A dark bar or triangular blotch between the eyes and curved dark band the sides may be present. The hind limbs have some crossbars. Males have a large vocal sac.


Raorchestes parvulus is typically found in evergreen forest, but it can also be found in grassland with heath forest. Individuals are mostly found in trees and dense vegetation, both away from water and near streams. The altitudinal range is 46 – 1500 m above sea level. Males call from the vegetation. The development is believed to be direct.

This species is probably suffering from habitat loss caused by logging and expanding agriculture and settlements. However, it is not considered threatened overall because of its wide distribution and presumed large total population. It is also documented from several protected areas and is likely present in many more.

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Scientific classification

Raorchestes parvulus

Common names

  • English:
    • Karin shrub frog
    • Tiny bubble-nest frog
    • Dwarf bush frog
    • Karin bubble-nest frog
  • Thai:
    • ปาดจิ๋ว
    • ปาดติ๊ก
    • ปาดแคระป่า


  • Philautus parvulus, George Albert Boulenger (1893)
  • Ixalus parvulus, George Albert Boulenger (1893)

Conservation status

Least Concern (IUCN3.1)

Least Concern (IUCN3.1)


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Raorchestes parvulus
Raorchestes parvulus
Raorchestes parvulus
Raorchestes parvulus
Raorchestes parvulus (female)
Raorchestes parvulus (female)
Raorchestes parvulus
Raorchestes parvulus
Raorchestes cf parvulus

Range Map

Distribution map of Karin shrub frog, Raorchestes parvulus in Thailand
  • Bang Lang National Park
  • Doi Inthanon National Park
  • Doi Phu Kha National Park
  • Doi Suthep - Pui National Park
  • Huai Kha Khaeng Wildlife Sanctuary
  • Khao Khitchakut National Park
  • Khao Laem National Park
  • Khao Laem Ya - Mu Ko Samet National Park
  • Khao Yai National Park
  • Kui Buri National Park
  • Phu Kradueng National Park
  • Suan Phueng District, Ratchaburi
  • Taksin Maharat National Park
  • Thung Yai Naresuan Wildlife Sanctuary
  • Yong Waterfall National Park
Range map of Raorchestes parvulus in Thailand