Drooping Shadowdamsel (Ceylonosticta lankanensis)

Commonest Shadowdamsel of Sri Lanka occurs from lowlands to mid-hills of southwestern part of the country in both forested steams as well as the disturbed habitats. It is also endemic to the island as all other Shadowdamsels. 

Dark Forestdamsel (Platysticta apicalis)

Locally common insect inhabiting streams and rivulets of southwestern and central forested areas from lowlands to mid-hills. It occurs mainly during April to September. (Bedjanic, M., K. et. al. 2014)

Dark Knob-tipped Shadowdamsel (Ceylonosticta montana)

An endemic damselfly occurs in small streams and seeps of the montane forests from 1000 to 2000 m elevations. 

Adam's Shadowdamsel (Ceylonosticta adami)

Adam's Shadowdamsel is one of the rarest endemic damselfly so far recorded only from few localities of the Knuckles range and its outskirts in the north-central part of the country . It was originally described from specimens collected from Madugoda near Urugalla in 1932 by F.C. Fraser.  After more than seven decades Karen Conniff observed and photographed it in Simpson's forest near Hunnasfalls in April 2006 and again in October 2007 and 2010. Karen Conniff and Matjaz Bedjanic observed a single juvenile female near Urugalla in end of May 2009. Matjaz Bedjanic also reported it from two streams in Simpson's forest in October 2012. Above pictures were taken at Dothalugala Camp Site area of the Knuckles mountain range.

Serendib Forestdamsel (Platysticta serendibica)

Common endemic damselfly inhabiting small streams in secondary and primary forests as well as the degraded habitats of the central and southwestern parts of the country. Much common in the wet low country but occurs also up to about 1000 m a.s.l. in the hills.  

Austin's Shadowdamsel (Ceylonosticta austeni [Drepanosticta austeni])

Rare and critically endangered damselfly so far recorded only from few localities in outskirts of Knuckles range, southern to southeastern outskirt of central hills and eastern hills around Badulla and Passara. It is a seasonal insect and occurs from March to November. (Bedjanic, M., K. et. al. 2014)

References:

Bedjanic, M., K. Conniff, N. van der Poorten & A. Salamun, 2014. Dragonfly fauna of Sri Lanka: Distribution and biology, with threat status of its endemics. Pensoft, Sofia. 321pp.

Drepanosticta mojca

An endemic forest damselfly recently described from south-western wet zone forested areas of Sri Lanka. So far it has been recorded only from widely scattered 6 locations in Kaluthara, Rathnapura, Galle and Mathara districts. Its flight season appears to be May and June as well as October (Bedjanič, M., 2010). Above specimens was photographed in Gileemale forest reserve of Rathnapura district - not in above 6 localities- on 30th March 2014 (i.e Out of the season)

References

Bedjanič, M., 2010. Three new Drepanosticta species from Sri Lanka (Zygoptera: Platystictidae). Odonatologica 39(3): 195-215.

Nietner's Shadowdamsel (Drepanosticts nietneri)

Rare endemic insect inhabiting streams in the primary and secondary rain forests.

Drepanosticta bine

An endemic forest damselfly inhabiting shady rain forest streams of South-western wet zone from 50 to 500 m altitude. It is currently known from only 16 localities in Kegalle, Nuwaraeliya, Kaluthara, Rathnapura, Galle and Mathra districts (Bedjanič, M., 2010). Its flying period is from end April-May until September-October.

My observations

1) Observed at Dombagaskandha forest reserve at Ingiriya (One of the above mentioned 16 localities) in June 2011 and July 2012.

2) At Lankagama - a buffer zone village of Sinharaja world heritage site - in July 2008[Two years before formal description]. ( Although it has been already recorded from Kudawa side of the Sinharaja not so far from the Neluwa entrance. A stream in Haycock range of Hiniduma area is the nearest location mentioned in above 16 localities to the Lankagama)

3) At Halpankandha forest reserve (7°12.806'N, 80°08.894'E) of Meerigama in Gampaha district in May 2012 (New locality)

References

Bedjanič, M., 2010. Three new Drepanosticta species from Sri Lanka (Zygoptera: Platystictidae). Odonatologica 39(3): 195-215. 

Brinck's Shadowdamsel (Ceylonosticta brincki [Drepanosticta brincki])

An endemic damselfly inhabiting stream habitats of wet zone rain forests. Rather uncommon insect though relatively common than other forest damsels.

Drepanosticta anamia

Drepanosticta anamia is a recently described endemic damselfly inhabiting small to mid-size shaded stream habitats in primary and secondary wet zone forests from 50-800m a.s.l. altitude in 22 localities in Kegalle, Nuwaraeliya, Colombo, Kaluthara, Rathnapura Galle and Mathara districts (Bedjanič, M., 2010). As per M. Bedjanič flight season stretches from end of April to September with a single end-February record. 

My Observations 

Above specimen was photographed at Meethirigala forest reserve of Gampaha district adding one more locality to already described 22 locations.  It has been observed there in May and June of 2011 and July 2012. 

References

Bedjanič, M., 2010. Three new Drepanosticta species from Sri Lanka (Zygoptera: Platystictidae). Odonatologica 39(3): 195-215.