Gupta, S. K. “On a Collection of Phytoseiidae (Acarina: Mesostigmata) from Madhya Pradesh and Uttar Pradesh With Description of a New Species of Phytoseius Ribaga”. Records of the Zoological Survey of India, vol. 79, no. 3-4, Dec. 1981, pp. 367-71, doi:10.26515/rzsi/v79/i3-4/1981/161734.