Narong JaturasApichat VittaYudthana SamungChamnarn ApiwathnasornRaxsina PolseelaNaresuan UniversityMahidol University2019-08-232019-08-232018-06-01Journal of Vector Ecology. Vol.43, No.1 (2018), 52-5819487134108117102-s2.0-85047493126https://repository.li.mahidol.ac.th/handle/20.500.14594/44743© 2018 The Society for Vector Ecology We investigated the nocturnal activity of cave-dwelling sand flies at different time intervals and determined their species composition and seasonal variation. Sand flies were captured on one night each month using CDC light traps from 18:00–06:00 with the collecting bag being changed every two h between February, 2010 and January, 2011. A total of 18,709 individuals, including 10,740 males and 7,969 females, was collected. The overall ratio between male and female specimens was 1:0.74. The collected specimens included 14 species from four genera, Chinius, Idiophlebotomus, Phlebotomus, and Sergentomyia. Sergentomyia phadangensis was the most abundant species (comprising 31.9% of the collected individuals), followed by Se. anodontis (22.8%) and Ph. mascomai (18.2%). The highest number of specimens was collected in July (15.6%), followed by May (15.5%) with the peak of collection recorded at the time interval of 00:01–02:00, followed by 22:01–00:00. However, there were no significant differences observed among time intervals of sand fly collections (p=0.154). Observations of the nocturnal activity of male and female sand flies throughout the night suggest that phlebotomine sand flies show the greatest activity level after midnight.Mahidol UniversityAgricultural and Biological SciencesEnvironmental ScienceArticleSCOPUS10.1111/jvec.12282