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VOL. 10, ISSUE 6 (2025)
Ground beetles (Coleoptera: Carabidae) from district Alwar, Rajasthan, India
Authors
Nitisha Chaudhary, Mahesh Kumar Meena, Shashi Jakhar, Chatra Ram Godara, Virender Kumar
Abstract
Alwar district features a varied landscape that includes rivers, hills,
plains, and semi-arid zones. The area falls within a sub-humid climatic region,
which provides favourable conditions for the proliferation of ground beetles.
In the Alwar district, we carried out field sampling between July 2022 and June
2023. We selected two distinct sites based on their diverse environments. Site
A – an agricultural field of village Jatka and Site B – the mountain region of
Bala Quila. Diversity indices verified that the research area's ground beetles
had a high degree of species richness and abundance. Individuals of 640 ground
beetles of the Carabidae family were characterized by 8 subfamilies, 11 genera,
and 18 species. The most species-rich subfamilies were Trechinae (5 species)
and Harpallinae (4 species), followed by Brachininae, Scaritinae and Lebiinae
(2 species each), Paussinae, Anthiinae, and Carabinae (1 species each). In
terms of individual count, Dromius quadrimaculatus emerged as the most
dominant species, comprising 16.95% of all collected beetles, followed by Chlaenius
bimaculatus (11.09%), Tetragonoderus intermedius (10.15%), Chlaenius
pseudotristis (8.43%), and Bembidion ambiguum (5.62%). The Simpson’s
Diversity Index was calculated at 0.9137 for Site A and 0.9327 for Site B,
indicating almost similar levels of species diversity across the two
sites.
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Pages:59-64
How to cite this article:
Nitisha Chaudhary, Mahesh Kumar Meena, Shashi Jakhar, Chatra Ram Godara, Virender Kumar "Ground beetles (<i>Coleoptera</i>: <i>Carabidae</i>) from district Alwar, Rajasthan, India". International Journal of Entomology Research, Vol 10, Issue 6, 2025, Pages 59-64
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