Yebury's Elf (Tetrathemis yerburii)

English: Yebury's Elf
Binomial: Tetrathemis yerburii

Yebury's Elf is an endemic species of dragonflies found in Sri Lanka. Population of this dragonfly has been spread in the southwestern and eastern parts of the island (Sumanapala, Podduwage, and Dayananda 2016). Distinct metallic blue-green eyes are the easiest method of identifying it. Above photographed one was found while perched on a bush close to a pond in Sinharaja forest reserve in June, 2015. It is in the category of 'Endangered' in the IUCN Red List. Destruction of primary and secondary forests can be the major threats for the species.

References:

• Sumanapala, Amila P., Divanka R. Podduwage, and Salindra K. Dayananda 2016 New Locality Records and Range Extensions for Several Threatened Species of Odonata in Sri Lanka. Check List 12(4): 1921.
• Dragonflies of Sri Lanka - Matjaž Bedjaniè, Karen Conniff, Gehan de Silva Wijeyeratne
• The IUCN Red List of Threatened Species(tm) 2015-4 - http://www.iucnredlist.org

Lieftinck's Sprite (Archibasis lieftincki)

English: Lieftinck's Sprite
Binomial: Archibasis lieftincki

Archibasis lieftincki is an endemic species of damselflies found in Sri Lanka. It is a recently described (Conniff & Bedjanič, 2013) species restricted to the wet zone forests. They can be seen perching on the vegetation in the margins of rivlets of the forest. In a research done by Amila Sumanapala and others (Sumanapala, Podduwage, and Dayananda 2016) they have mentioned Pahiyangala, Indikada Mukalana,Thotaha and Walallawita for observed locations for the species. Above photographed ones were found in a rivlet at Gilimale forest reserve and in a margin of a pond at the Sinharaja forest reserve in June. IUCN Red List status of this damselfly has not been evaluated yet. But any activity that changes the environmental conditions of law land forest ecosystems might be a threat for the species.

References:

• Sumanapala, Amila P., Divanka R. Podduwage, and Salindra K. Dayananda 2016 New Locality Records and Range Extensions for Several Threatened Species of Odonata in Sri Lanka. Check List 12(4): 1921.
• Dragonflies of Sri Lanka - Matjaž Bedjaniè, Karen Conniff, Gehan de Silva Wijeyeratne

Kotagama's toad (Duttaphrynus kotagamai)

Parietal ridges and parotid glands are not much visible in a juvenile

English: Kotagama's toad
Binomial: Duttaphrynus kotagamai/Bufo kotagamai
Sinhala: කොටගමගේ ගෙම්බා[Kotagamage gemba]

Kotagama's toad is an endemic species of frogs found in Sri Lanka. It is nocturnal and lives in covered forests where there is a good canopy layer. Species name of the frog, ‘Kotagamai’ is a patronym honouring Prof. Sarath Kotagama.

Adults of this species can be easily distinguished from other members of Bufonidae family found in Sri Lanka by the prominent inwardly-curved parietal ridges of the head. In a research done by Dr. Prithiviraj Fernando and others (Fernando & Dayawansa, 1994) it is mentioned that the species can be observed on rocky margins of streams, sand banks, vicinity of streams and in the leaf litter of the forest. In the research paper they have mentioned that Sinharaja, Kithulgala and Massana rain forest for distributed locations.

Above photographed ones were also observed in the leaf litter at the Makandawa rain forest, Kithulgala in March and December of 2015. We did not observe any streams very close to the observed location and believed that they have moved to that location from a nearby stream after the metamorphosis. In the IUCN Red List it is in the category of ‘Endangerd’. Habitat loss and human disturbances are said to be the major threat for the existence of this species.

Referances:

• Bufo kotagamai, a new toad (Bufonidae) from Sri Lanka P Fernando, N Dayawansa, M SIRIWARDENA Journal of South Asian natural History 1 (1), 119-124
• The IUCN Red List of Threatened Species(tm) 2015-4 - http://www.iucnredlist.org
• Manamendra-Arachchi, K. & R. Pethiyagoda (2006): Sri Lankan amphibians [in Sinhala]. – WHT Publications, Colombo.

Sri Lanka Treebrown (Lethe daretis)

English: Sri Lanka Treebrown
Binomial: Lethe daretis

Sri Lanka Treebrown is a endemic species of butterflies restricted to the montane zone of Sri Lanka. Host plants of this butterfly belongs to poaceae family(Bamboo family). Due to that reason, a popular place to observe this butterfly is among the bamboo bushes of Horton National Park. Above photograph was taken at Galway's Land National Park in Nuwaraelya.

Pruinosed Bloodtail (Lathrecista asiatica asiatica)

English: Pruinosed Bloodtail
Binomial: Lathrecista asiatica asiatica

It is a widespread species of dragonflies found in many countries in the world. In Sri Lanka, the population has been distributed in the lowlands. Above photographed specimen was found in Gilimale area in the Rathnapura district. In the IUCN Red List it is in the category of 'Least Concern'.

Reference:

• Dragonflies of Sri Lanka - Matjaž Bedjaniè, Karen Conniff, Gehan de Silva Wijeyeratne
• The IUCN Red List of Threatened Species(tm) 2015-4 - http://www.iucnredlist.org

Yellow-wattled lapwing (Vanellus malabaricus)

English: Yellow-wattled lapwing
Binomial: Vanellus malabaricus
Sinhala: කහ-යටිමල් කිරළා

Yellow-wattled lapwing is a common bird found in the Indian sub continent. They mainly live in dry areas compared to the Red-wattled lapwing. Females lay eggs in a nest made in the ground. Color of the eggs is light brown and there are blackish-brown spots scattered on the surface. It is 'Least concerned' in the IUCN Red List. Above photographs were taken at Yala National Park in June, 2015.

Sri Lanka wolf snake (Lycodon carinatus)

Scales are identical in size and keeled.

English: Sri Lanka wolf snake
Binomial: Lycodon carinatus
Sinhala: දාර රදනකයා[Dara Radanakaya]

Sri Lanka wolf snake is an endemic and nocturnal species of snakes found in Sri Lanka. They mainly live in lowland wet and submontane zones and prefer damp forest areas. Above photographed one also found while it was in a wet place of the forest ground. This species is non-venomous. But it greatly mimics deadly venomous Sri Lankan krait in morphology and coloration. This snake has identically sized rough scales on the back and those have been keeled. But Kraits have large hexagonal line of scales running down the spine and the body of the Krait is shiny compared to the Sri Lankan wolf snake.

Referaces: 

•  L. J Mendis Wickramasinghe: Recognizing Deadly Venomous Snakes form Harmless Snakes of Sri Lanka – Dilmah conservation
•  Richira Somaweera : Snakes of Sri Lanka[in Sinhala]