Dengue has become a national burden in Sri Lanka, and the understanding of breeding ecology of vectors, Aedes aegypti Linnaeus and Aedes albopictus Skuse, is the most effective way to control the disease. The present study was undertaken to investigate the relative larval abundance of Ae. aegypti and Ae. albopictus in different types and characteristics of containers in three selected localities in Galle district, Sri Lanka. Totally, 550 containers were positive for both Ae. aegypti and Ae. albopictus larvae. Aedes albopictus showed the high larval abundance in all studied sites. The larval abundance of artificial containers (90.57%) was high than that of natural containers (9.43%) for both Aedes spp. ( P < 0.05 ). The breeding preference for A. aegypti was high in tires (rubber) (17.82%), while plastic cups (28.00%) were the most preferable container type for Ae. albopictus. Dark color containers than light color containers ( P < 0.05 ) and containers with leaf litter accumulated as detritus ( P < 0.05 ) showed high relative larval abundance for both Aedes species. Containers with 50–100 ml volume of water showed the highest relative abundance of both Ae. aegypti (29.28%) and Ae. albopictus (41.79%) ( P > 0.05 ). The high larval abundance of Aedes recorded in ground level containers (1–5 cm) and their abundance decreased significantly with the increasing of height where containers were found (1–20 cm) ( P < 0.05 ). The significantly high relative abundance was observed with the increase of the shady level for Ae. aegypti (57.34%) and Ae. albopictus (61.32%) ( P < 0.05 ). This knowledge will be helpfull to implement dengue surveillance programs in the area.

Luciola nicollieri Bugnion, 1922 is one of the sixteen originally described Luciolinae from Sri Lanka. Specimens of L. nicollieri have been re-discovered in 2022 almost after 100 years of its first description, and their identity was confirmed by comparison with the original description, photos of their type specimen and based on expert's views. Flightless female is associated and described for the first time, males redescribed, with details of external morphology, genitalia pattern, flashing behavior and habitat ecology. After examining the types and the generic features of their genetalia, L. nicollieri is placed herein to the category of Luciola Laporte s. str. transferring from Luciola sensu lato. Also a key to the species of Luciola recorded from Sri Lanka is provided.