Leptocybe-invasa
Guides
Quadrastichus
Quadrastichus is a genus of small parasitic wasps in the family Eulophidae, subfamily Tetrastichinae. The genus includes species with diverse ecological roles: some are gall-inducing pests of trees, while others are ectoparasitoids used in biological control programs. Notable species include Quadrastichus erythrinae, an invasive gall wasp that damages Erythrina (coral trees) in tropical and subtropical regions, and Q. mendeli, an obligate ectoparasitoid of the eucalyptus pest Leptocybe invasa that has been successfully established for biological control across multiple countries.