Faunistic Analysis of Erebid Moths (Lepidoptera: Erebidae) of the Fergana Valley, Uzbekistan
Keywords:
Fergana Valley; Erebidae; Erebinae; faunistic analysis; Dysgonia algira; Tyta luctuosa; Grammodes stolida; Simpson index.Abstract
This article presents the faunistic composition, quantitative structure, and applied significance of moths (Lepidoptera: Erebidae) under Fergana Valley conditions. During 2021–2025, specimens were collected in Fergana, Andijan, and Namangan provinces using light attraction at night (DRL 200/150) and daytime hand-netting; morphological identification, trophic observations, and calculations based on Simpson indices were performed. In total, 21 species representing 17 genera were recorded. Of these, Erebinae accounted for 67%, Arctiinae for 20%, Lymantriinae for 10.4%, and Boletobiinae for 2%; superdominant species were
Dysgonia algira (20.4%), Tyta luctuosa (13.6%), and Grammodes stolida (10.1%). Simpson indices were C ≈ 0.093 and D ≈ 0.907, indicating high population diversity and low dominance. The samples are consistent with the Fergana Valley’s isolated
landscape with a sharply continental climate.
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