Halacaridae (Acari) from Tenerife (Canary Islands) Author Durucan, Furkan . Department of Aquaculture, Isparta University of Applied Sciences, 32260 Isparta, Türkiye; E-mail: f _ durucan @ hotmail. com f_durucan@hotmail.com Author Paz, Juan Carlos De La . Grupo de Investigaciones Entomológicas de Tenerife, 38206 La Laguna, Tenerife, Canary Islands, Spain; E-mail: juancarlos @ nuryana. com juancarlos@nuryana.com Author Hernández-Teixidor, David . Grupo de Investigaciones Entomológicas de Tenerife, 38206 La Laguna, Tenerife, Canary Islands, Spain; E-mail: juancarlos @ nuryana. com &. Island Ecology and Evolution Research Group, Instituto de Productos Naturales y Agrobiología (IPNA-CSIC), 38206 La Laguna, Tenerife, Canary Islands, Spain; E-mail: davidhdez @ ipna. csic. es juancarlos@nuryana.com&davidhdez@ipna.csic.es text Persian Journal of Acarology 2023 2023-01-15 12 1 1 19 journal article 10.22073/pja.v12i1.76823 2251-8169 10267938 Agauopsis brevipalpus (Trouessart, 1889) Material examined One female (FDHAL-21/2) and three males , El Pris ( Gelidium sp. , upper mid-littoral zone); one female and one male , La Barranquera ( Gelidium pusillum , upper mid-littoral zone). Diagnosis The length of females was between 400 and 460 µm, and for males, 450 µm. Idiosoma wide and heavily armed. Integument of plates brownish. Raised porose areolae of dorsal plates with canaliculi. Ostia lacking. AD with small frontal process and the plate clearly raised H-like costa. OC with two corneae, porose areola triangular in outline and rounded angles. Eye spots present beneath AD and OC . PD with pair of medial and lateral costae and the plate anteriorly rounded. Ventral plates porose and faintly reticulate. AE wide, posterior margin of AE and anterior margin of GA truncate. Gnathosoma and palps are slender. Rostrum about as long as gnathosomal base ( Bartsch 1996 ) ( Fig. 3B ). Remarks This is one of the species most encountered within a genus widely distributed and reported in the Black Sea, Mediterranean Sea and eastern Atlantic ( Bartsch 2004 ; Durucan and Boyaci 2018 ; Durucan 2020 , 2021 ). In the Atlantic Ocean, A. brevipalpus has been reported from the Azores, Canary Islands , British Isles and continental Spain ( Bartsch 2015 ).