Supplementary materials for the Journal of the European Mosquito control Association: The mosquitoes of the Balearic Islands: an inventory and a snapshot field survey

A snapshot field survey was conducted in the Balearic Islands (Spain) to widen knowledge about mosquito species present in the archipelago. A search for mosquito species records in published literature, local mosquito collections and unpublished grey literature was also undertaken. The main mosquito habitats (except urban habitats) on the four major islands of the archipelago (Mallorca, Menorca, Eivissa and Formentera) were visited between October and November 2019. A mosquito survey was conducted in 32 municipalities, including field collection of larvae, pupae and adults. The literature review updated the list of mosquito species in the Balearic Islands to 23 taxa (one invasive species and 22 considered native to the region). The 169 field samples collected during the snapshot identified 19 species, including three first records in the Balearic Islands (Anopheles marteri, Culex mimeticus, and Cx. impudicus), and also confirmed the presence of Aedes detritus, considered extinct until 2020. Seven species reported in the Balearics were not detected, i.e. Ae. aegypti, Ae. rusticus, An. algeriensis, An. atroparvus, An. claviger s.s., Coquillettidia richiardii, and Cx. hortensis. Mosquito larvae were collected from a wide variety of natural and artificial habitats, with torrent bed pools housing the highest diversity (12 species). The most common species across a wide variety of breeding sites were Cx. pipiens followed by Culiseta longiareolata and Cx. laticinctus. Moreover, we provide information about the possible vector role of reported species in the Balearic Islands.