Diversity of Pentatomid Bug Fauna in Western Rajasthan

Choudhary, Pushpa

Diversity of Pentatomid Bug Fauna in Western Rajasthan

Date

2023-08-01

Authors

Choudhary, Pushpa

Publisher

Agriculture University, Jodhpur

Abstract

The studies on “Diversity of pentatomid bug fauna in western Rajasthan” was carried out at Jodhpur during Kharif, 2022. During this period, 614 specimens of Heteropteran bugs were collected from Agricultural Research Station, Mandor and College of Agriculture, Jodhpur. Examined specimens belongs to eight families, viz., Alydidae, Coreidae, Dinidoridae, Lygaeidae, Miridae, Pentatomidae, Pyrrhocoridae and Reduviidae. The family Pentatomidae was represented by 2 sub-families viz., Asopinae and Pentatominae. This study revealed the occurrence of a total of 15 species grouped into 13 genera of which 13 species grouped under 11 genera and 8 tribes were in the sub-family Pentatominae, which was dominant; while, 2 species grouped under 2 genera and 1 tribe in the sub-family Asopinae. The Heteropteran sub-order was represented by 32 species belonging to 29 genera under 8 families collected from ARS, Mandor and CoA, Jodhpur. The relative abundance of different families under Heteropteran sub-order was observed maximum for Pentatomidae family (29.48%) followed by Coreidae (28.66%) and minimum relative abundance for Dinidoridae (1.63%) from Jodhpur. The relative abundance of pentatomid fauna was observed maximum for Eysarcoris ventralis followed by Piezodorus hybneri. The minimum relative abundance was observed for Carbula biguttata, Carbula socia, Eysarcoris sp., Erthesina acuminata, and Placosternum taurus. On the basis of Shannon-Weiner (H’) (1.53) and Simpson Index (D) (3.53), maximum diversity of bugs was observed in Pearl millet ecosystem at ARS, Mandor. The pentatomid bugs showed non-significant correlation with abiotic factors. Coreid bugs showed significant positive correlation with maximum temperature and mean temperature whereas, significant negative correlation with morning relative humidity and mean relative humidity. Lygaeid bugs showed positive significant correlation with maximum temperature and mean temperature. Mirid bugs had positive significant correlation with morning relative humidity and mean relative humidity. Alydid bugs showed significant positive correlation with mean temperature. Heteropteran bugs recorded no significant correlation with minimum temperature and evening relative humidity.