A small family of less than 1,500 phytophagous insects in the order Hemiptera, suborder Homoptera, group Sternorrhyncha, often called psyllids or jumping lice. They have strong hind legs that allow them to leap, hence “jumping plant lice”. Psyllids are small (2-4 mm long) insects with stiff forewings. Their feeding on soft plant tissues may cause leaf drop and induce galling, they vector bacterial and viral diseases and produce much honeydew. Pests include Agonoscena pistaciae, a pest of pistachio, Cacopsylla bidens, a major pest of pears in the Middle East, and Euphyllura straminea, which attacks olives.


Brown, R.G. and Hodkinson, I.D. 1988. Taxonomy and ecology of the jumping plant-lice of Panama (Homoptera: Psylloidea). Entomonograph 9: 1-304.

Jensen D. 1957. Parasites of the Psyllidae. Hilgardia 27:71-99.

Spodek, M., Burckhardt, D. and Freidberg, A. 2017. The Psylloidea (Hemiptera) of Israel. Zootaxa 4276: 301-345.