Spatiotemporal Diversity of Scolytinae (Coleoptera: Curculionidae) in Three Ecosystems of Villaflores, Chiapas

Abstract

The diversity of scolitines associated with jungles and a rustic coffee plantation in the municipality of Villaflores, Chiapas, was determined during the period from August 2020 to July 2021. The insects were captured using Ecoiapar traps with ethyl alcohol as attractant. A total of 3745 individuals of scolitines were collected, grouped into 28 genera and 64 species; the species Corthylus rubricollis and Cryptocarenus laevigatus are new records for Mexico. In jungles and coffee plantations, the richest genera were Corthylus, Xyleborus, Hypothenemus and Cryptocarenus. The maximum index of diversity of scolitines determined with the Shannon-Wiener index was in the locality of Guaymas (H': 2.979); with the Margalef index, the maximum specific richness was in Roblada (DMG: 7.073). On the other hand, with the equity index, the maximum value was obtained in Guaymas (J': 0.7654); while, with the Jaccarf similarity index, the Guaymas-Roblada localities present a greater number of species in common. The scolitine population fluctuated constantly, presenting two very marked population peaks, the first in the winter season in March with 782 individuals, the second in the summer in September with 62 individuals. By locality, the populations of scolitines fluctuated constantly, with the highest number of insects recorded in the winter and spring seasons, during the dry season and at the beginning of the rainy season.