International Journal of Tropical Insect Science

, Volume 39, Issue 3, pp 243–247 | Cite as

Another species of Quadrastichus (Hymenopera; Eulophidae; Tetrastichinae) attacking Erythrina (Fabaceae) in the Neotropics: a report from Costa Rica

  • Sergio Jansen-GonzálezEmail author
  • Mainor Rojas-Barrantes
  • Daniel Ramírez-Valerio
  • Luis Constantino
  • Fiorella García-Jiménez
  • Paul E. Hanson
Scientific Note


Since the description of Quadrastichus erythrinae (Hymenoptera: Eulophidae: Tetrastichinae) in 2004, this invasive species has been reported in various tropical and subtropical regions, causing damage to several species of coral trees (Erythrina spp.). Here we report the presence of yet another invasive Quadrastichus attacking native and introduced species of Erythrina in Costa Rica. We present morphological evidence that strongly suggests that this species is not Q. erythrinae; rather, the species found in Costa Rica appears to be either Q. bardus or an undescribed species. We call for an urgent international effort to characterize the phytophagous Quadrastichus species associated with Erythrina species from around the world in order to clarify which species are invasive and document where these invasive species are currently known to occur.


Galls Quadrastichus Erythrina Coral trees 



We would like to thank the anonymous reviewer for the helpful comments and the thorough review of the manuscript.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.


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Copyright information

© African Association of Insect Scientists 2019

Authors and Affiliations

  1. 1.Museo de ZoologíaUniversidad de Costa RicaSan Pedro de Montes de OcaCosta Rica
  2. 2.Centro Mesoamericano de Desarrollo Sostenible del Trópico Seco (CEMEDE)Universidad Nacional de Costa RicaNicoyaCosta Rica
  3. 3.Instituto del Café de Costa RicaHerediaCosta Rica
  4. 4.Centro Nacional de Investigaciones de Café (CENICAFÉ)ChinchináColombia
  5. 5.Escuela de BiologíaUniversidad de Costa RicaSan Pedro de Montes de OcaCosta Rica

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