* El-Jaouani N (1988) Contribution à la connaissance des acariens phytophages au Maroc et étude bio-écologique de Tetranychus evansi Baker et Pritchard (Acarina: Tetranychidae). Rabat, Maroc, Institut Agronomique et Vétérinaire Hassan II: 60.
* Nicoli Aldini R, Mazoni E, Ciampitti M (2006) [First finding of the nearctic hopper Acanalonia conica (Say) (Fulgoromorpha Acanaloniidae) in Lombardy (Northern Italy).] Bolletino di Zoologia Agraria e di Bachicoltura Serie II 38(3), 261-264 (in Italian).
* Kogan M, Helm CG, Kogan J, Brewer E (1989) Distribution and economic importance of Heliothis virescens and Heliothis zea in North, Central, and South America and of their natural enemies and host plants. InProceedings of the Workshop on Biological Control of Heliothis: Increasing the Effectiveness of Natural Enemies, New Delhi, India, 11-15 November 1985 1989. New Delhi, India: Office of International Cooperation & Development, USDA.