Insecticolous Acari from Trinidad, B.W.I.
Authors: Turk Frank A. 
Published: August 2010

Summary.Some account is given of the general relationships of the species of acari treated of in this paper to their insect hosts. The following genera and species are recorded from insect hosts in Trinidad:‐ Sennertia donaldi, sp. n. Horstiella armata, gen. et sp. n. Amansia alutacea, sp. n. Leptus gagzoi Oudemans, 1910. Trichouropoda longiseta (Berlese, 1888). Urodiscella centro‐americana (Stoll, 1896). Uroplitana meliponarum, sp. n. Euzercon balzani Berlese, 1888. Diplogynium ovatum (Berlese, 1888). Klinckowstroemia sp., sp. n. Neoholaspis coprophilus, gen. et sp. n. Neoholaspis coprophilus var. elongatus var. nov. Coprholaspis bruneti, sp. n. Andrholaspis trinitatis, gen. et sp. n. Holostaspella polyornata, sp. n. Onchodellus antillanus, sp. n. Meliponapachys pallidus, gen. et sp. n. Eumellitiphis mellitus, gen. et sp. n. Hypoaspis favosus, sp. n. Euiphis sp.? Zontia meliponensis, gen. et sp. n. Syngynaspis bruneti, sp. n. Hoplmegistus armiger (Berl. 1888). Sennertia donaldi, sp. n. Horstiella armata, gen. et sp. n. Amansia alutacea, sp. n. Leptus gagzoi Oudemans, 1910. Trichouropoda longiseta (Berlese, 1888). Urodiscella centro‐americana (Stoll, 1896). Uroplitana meliponarum, sp. n. Euzercon balzani Berlese, 1888. Diplogynium ovatum (Berlese, 1888). Klinckowstroemia sp., sp. n. Neoholaspis coprophilus, gen. et sp. n. Neoholaspis coprophilus var. elongatus var. nov. Coprholaspis bruneti, sp. n. Andrholaspis trinitatis, gen. et sp. n. Holostaspella polyornata, sp. n. Onchodellus antillanus, sp. n. Meliponapachys pallidus, gen. et sp. n. Eumellitiphis mellitus, gen. et sp. n. Hypoaspis favosus, sp. n. Euiphis sp.? Zontia meliponensis, gen. et sp. n. Syngynaspis bruneti, sp. n. Hoplmegistus armiger (Berl. 1888). Sennertia donaldi, sp. n. Horstiella armata, gen. et sp. n. Amansia alutacea, sp. n. Leptus gagzoi Oudemans, 1910. Trichouropoda longiseta (Berlese, 1888). Urodiscella centro‐americana (Stoll, 1896). Uroplitana meliponarum, sp. n. Euzercon balzani Berlese, 1888. Diplogynium ovatum (Berlese, 1888). Klinckowstroemia sp., sp. n. Neoholaspis coprophilus, gen. et sp. n. Neoholaspis coprophilus var. elongatus var. nov. Coprholaspis bruneti, sp. n. Andrholaspis trinitatis, gen. et sp. n. Holostaspella polyornata, sp. n. Onchodellus antillanus, sp. n. Meliponapachys pallidus, gen. et sp. n. Eumellitiphis mellitus, gen. et sp. n. Hypoaspis favosus, sp. n. Euiphis sp.? Zontia meliponensis, gen. et sp. n. Syngynaspis bruneti, sp. n. Hoplmegistus armiger (Berl. 1888).The geographical and host distribution of some of these forms are discussed. The genus Crandiella Lombardini, 1939, is shown to be a synonym of Amansia Oudemans, 1937, with the species Dermaleichus chrysomelinus Koch, 1841, as type. Some aspects of the morphology of the mites of this genus are dealt with and a key is given to the species at present known. The presence of heteromorphic and homiomorphic males is demonstrated in this family for the first time. The Uropoda centro‐americana Stoll is shown to belong to the genus Urodiscella. The genus Uroplitana Sellnick, hitherto known only from the nests of termites, is shown to have a species in bees' nests. The distribution of the species of the Diplogyniidae is discussed. The genera and synonymy of the Klinckowstroemiidae and the validity of the type genus are discussed. A short general account of the genera of Macrochelidae is given, and a tentative division of its genera. The name Neoholaspis cooremani, nom. n., is proposed for the Macrocheles sp. Cooreman, 1943. A key is given to the known species of the “tarsospinosi” group of the genus Coprhlaspis Berlese. A possible stridulating organ is described in Onchodellus antillanus, sp. n., and some similarities of this with the cymatium of ticks are pointed out. The genus Hoplomegistus Berl. 1903 is shown not to be related to the Megisthaniade as previously believed but to be a genus of the Syngynaspidae: the genus is discussed at considerable length, and the hitherto unknown male form of this family is re‐described with reference to characters important for general comparative morphological considerations and, as a result, reasons are deduced for ljelieving that the male genital aperture occurs in the primitive arachnid position on the tenth somite.All the types are in my own collection.