''Leptolalax croceus'' (orange-bellied leaf-litter toad) is a species of toad in the family

Megophryidae Megophryidae, commonly known as goose frogs, is a large family of frogs native to the warm southeast of Asia, from the Himalayan foothills eastwards, south to Indonesia and the Greater Sunda Islands in Maritime Southeast Asia, and extending to th ...

. Discovered in the

Central Vietnam Central Vietnam ( vi, Trung Bộ or ), also known as Middle Vietnam or The Middle, formerly known as by South Vietnam, and Annam under French Indochina, is one of the three geographical regions within Vietnam. The name Trung Bộ was used by ...

in 2010, it is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

to the region as it is only known from its type locality, Ngoc Linh Nature Reserve in Đắk Glei District, Kon Tum Province. However, given the vicinity of the border to

Laos Laos (, ''Lāo'' )), officially the Lao People's Democratic Republic ( Lao: ສາທາລະນະລັດ ປະຊາທິປະໄຕ ປະຊາຊົນລາວ, French: République démocratique populaire lao), is a socialist ...

it is also likely to be found there. Its belly has light

orange color Orange is the colour between yellow and red on the spectrum of visible light. Human eyes perceive orange when observing light with a dominant wavelength between roughly 585 and 620 nanometres. In traditional colour theory, it is a secondary c ...

, which is unique among ''Leptolalax''. It is a medium-sized species within its genus: snout-vent length of 16 males was in the range . The species was found from evergreen forest at about elevation.

References

croceus Kon Tum province Endemic fauna of Vietnam 2010 in Vietnam Amphibians of Vietnam Amphibians described in 2010 {{Megophryidae-stub