Study of Aphid Species (Hemiptera: Homoptera: Aphididae) in Hathazari Upazila, Chattogram, Bangladesh

This study investigates the diversity and host plant relationships of aphids (Hemiptera: Aphididae) in Hathazari Upazila, Chattogram, Bangladesh conducted over a one-year period (January to December 2020). A total of 11 aphid species, representing seven genera and two subfamilies, were identified across 10 host plant species at eight sampling sites within three primary study areas. The collection included 908 aphid specimens, consisting of 417 apterae, 67 alatae, and 424 nymphs. Aphis craccivora (Koch, 1854) emerged as the most abundant species, with 157 individuals, while Hysteroneura setariae (Thomas, 1878) was the least abundant, with only 26 individuals. The study reveals distinct aphid population patterns, with peak abundance observed during the winter months, offering new insights into aphid species composition and their ecological interactions in the region.