Chironomidae from Gough, Nightingale and Tristan da Cunha islands

A striking shift in historical biogeography challenges the dominance of vicariance, favoring oceanic dispersal as the primary explanation for disjunct distributions across taxa. This study reveals that the chironomid fauna of Gough, Nightingale, and Tristan da Cunha islands in the South Atlantic consists of just six species, with molecular dating supporting dispersal over tectonic events. Among these, Telmatogeton goughi (male/female) and Clunio jonesi (male) are marine, while others like Limnophyes minimus and Allocladius lusciniolus dominate the parthenogenetic fauna. Key morphological differences distinguish each species, including T. goughi's proximity to T. sanctipauli and C. jonesi's unique gonostylus structure.

SÆTHER, O. A., & ANDERSEN, T. (2011). Chironomidae from Gough, Nightingale and Tristan da Cunha islands. Zootaxa, 2915(1). https://doi.org/10.11646/zootaxa.2915.1.1