caa a22 4500 386361215 CHVBK 20180307111916.0 cr unu---uuuuu 161130e198908 xx s 000 0 eng 10.4039/Ent121709-8 doi S0008347X00031928 pii (NATIONALLICENCE)cambridge-10.4039/Ent121709-8 Smith Ian M. Biosystematics Research Centre, Agriculture Canada, Research Branch, Central Experimental Farm, Ottawa, Ontario, Canada K1A 0C6 DESCRIPTION OF TWO NEW SPECIES OF PLATYHYDRACARUS GEN. NOV. FROM WESTERN NORTH AMERICA, WITH REMARKS ON CLASSIFICATION OF ATHIENEMANNIIDAE (ACARI: PARASITENGONA: ARRENUROIDEA) [Elektronische Daten] [Ian M. Smith] Larvae, deutonymphs, and male and female adults of Platyhydracarus juliani sp.nov., and adults of P. parvipalpis sp.nov., are described from rheocrenes and small streams in western North America. The genus Platyhydracarus gen.nov. is proposed and diagnosed, based primarily upon the presence of genital acetabula both in the gonopore and on acetabular plates flanking the gonopore, and of a group of thickened setae anterior to the gonopore, in male adults. Possible relationships between Platyhydracarus and other Athienemanniidae are discussed, and a new key to the genera of Athienemanniinae is presented. Copyright © Entomological Society of Canada 1989 The Canadian Entomologist Cambridge University Press 121/8(1989-08), 709-726 0008-347X 121:8<709 1989 121 TCE https://doi.org/10.4039/Ent121709-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.4039/Ent121709-8 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Smith Ian M. Biosystematics Research Centre, Agriculture Canada, Research Branch, Central Experimental Farm, Ottawa, Ontario, Canada K1A 0C6 NATIONALLICENCE 773 0- The Canadian Entomologist Cambridge University Press 121/8(1989-08), 709-726 0008-347X 121:8<709 1989 121 TCE CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge