An authoritative, marvelously illustrated field guide to the velvet ants of North America
Velvet Ants of North America is a beautiful photographic guide to the species of the wasp family Mutillidae ……続きを見る
Insect pests are the major limiting factor in agricultural production in India and known to cause 30000 crores rupees loss annually in India (Reed and Pawar, 1982). Helicoverpa armigera (Hubner) the……続きを見る
