International Journal of Insect and Animal Diversity Research

Ladybird beetles (Coccinellidae) are important components of terrestrial agroecosystems because many species prey on aphids and other soft-bodied arthropods. This study documented the coccinellid fauna of the eastern part of Chaharmahal and Bakhtiari Province, southwestern Iran, with sampling focused on Borujen County during 2024. Specimens were collected from agricultural fields, orchards, rangelands and urban green spaces using insect nets and hand collection. Samples were preserved in 70% ethanol, and identification was based on external morphological characters and, where required, microscopic examination of genital structures using published taxonomic keys. Five species belonging to four genera within the subfamily Coccinellinae were reported: Coccinella septempunctata, C. undecimpunctata, Adalia bipunctata, Hippodamia variegata and Propylaea quatuordecimpunctata. The paper dataset reported relative frequencies of 36.7%, 30.0%, 14.28%, 10.0% and 10.0%, respectively; these rounded values sum to slightly more than 100%, so the underlying counts should be checked before final submission. Coccinella septempunctata was the most frequently recorded species, followed by C. undecimpunctata. The findings provide a preliminary baseline for the regional ladybird fauna and suggest that common predatory species may contribute to natural regulation of aphid populations in cultivated habitats. However, the short sampling period, incomplete reporting of effort and lack of molecular confirmation limit inference about long-term community structure. Standardized multi-season surveys and voucher-based taxonomic verification are recommended.