What question did this study set out to answer?

This research aims to revise and expand the knowledge of the Gelastopsis genus by describing new species and their ecological interactions.

February 8, 2026Open Access

Revision of the Eurybrachidae IXX. The Australian genus Gelastopsis Kirkaldy, 1906: two new species, new records, biological data and key (Hemiptera: Fulgoromorpha)

JCJérôme ConstantInstitute of Natural Sciences

Key Points

This research aims to revise and expand the knowledge of the Gelastopsis genus by describing new species and their ecological interactions.
Described two new species from northern Queensland, Australia.
Documented interactions of Gelastopsis with ants, specifically Camponotus.
Provided new records for previously known species and created an identification key.
Described Gelastopsis croydonensis and Gelastopsis procyon as new species.
Established a trophobiotic interaction between Gelastopsis croydonensis and Camponotus ants.
Expanded the genus Gelastopsis to include five species with updated distribution maps.

Abstract

Two new species of the Australian genus of Eurybrachidae (Hemiptera, Fulgoromorpha) Gelastopsis Kirkaldy, 1906 are described from northern Queensland: Gelastopsis croydonensis sp. nov. from Croydon, and Gelastopsis procyon sp. nov. from Fairview and Fairlight near Laura, and from Normanton. Both species were found on Acacia sp. (Fabaceae). Gelastopsis croydonensis sp. nov. was recorded in trophobiotic interaction with ants of the genus Camponotus (Hymenoptera: Formicidae), providing the first record of this kind for the genus. New records of the three previously described species of Gelastopsis are presented. The male terminalia of the new species are illustrated and photographs of collection and live specimens, distribution maps, biological data and an identification key are provided. The genus Gelastopsis currently contains five species.

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