Cite

     Omkar et al.. “Risks associated with tandem release of large and small ladybirds (Coleoptera: Coccinellidae) in heterospecific aphidophagous guilds.” Canadian entomologist, vol. 146, no. 1, 2014, pp. 52–66. http://access.bl.uk/ark:/81055/vdc_100025119873.0x000033